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PubMed2003

The effect of the addition of poly (methyl methacrylate) fibres on the transverse strength of repaired heat-cured acrylic resin.

The aim of the present study was to investigate the effect of addition of an experimental poly (methyl methacrylate) (PMMA) fibre in linear form, 0.75 mm in diameter on the transverse strength of repaired heat-cured poly (methyl methacrylate) denture base material. Specimens of heat-cured PMMA were repaired with an autopolymerizing acrylic resin and an autopolymerizing acrylic resin together with the addition of untreated and surface-treated PMMA fibres in different arrangements. The transverse bend test was carried out using a LIoyd's Instrument Material Testing Machine. From the results, it can be concluded that the box incorporated into the repair joint produced a significant decrease in the moduli of elasticity and rupture which may be due to stress concentration effects. The addition of one layer of untreated PMMA fibres significantly decreased the modulus of rupture. The addition of two layers of untreated fibres produced a slight but statistically non-significant increase in the modulus of rupture. The addition of surface-treated (with butadiene styrene latex emulsion) fibres into the repair complex gave no improvement compared with the addition of untreated fibres in terms of transverse strength. There was an insignificant decrease in the modulus of rupture compared with the untreated fibres.

Acrylic Resins↗
PubMed2003

The effect of disinfectant solutions on the hardness of acrylic resin denture teeth.

This investigation studied the effects of disinfectant solutions on the hardness of acrylic resin denture teeth. The occlusal surfaces of 64 resin denture teeth were ground flat with abrasives up to 400-grit silicon carbide paper. Measurements were made after polishing and after the specimens were stored in water at 37 degrees C for 48 h. The specimens were then divided into four groups and immersed in chemical disinfectants (4% chlorhexidine; 1% sodium hypochlorite and sodium perborate) for 10 min. The disinfection methods were performed twice to simulate clinical conditions and hardness measurements were made. Specimens tested as controls were immersed in water during the same disinfection time. Eight specimens were produced for each group. After desinfection procedures, testing of hardness was also performed after the samples were stored at 37 degrees C for 7, 30, 60, 90 and 120 days. Data were analysed using two-way analysis of variance (anova) and Tukey's test at 95% confidence level. According to the results, no significant differences were found between materials and immersion solutions (P > 0.05). However, a continuous decrease in hardness was noticed after ageing (P < 0.05). It was conclude that the surfaces of both acrylic resin denture teeth softened upon immersion in water regardless the disinfecting solution.

Acrylic Resins↗
PubMed2003

Influence of number and position of flasks in the monomer release, Knoop hardness and porosity of a microwave-cured acrylic resin.

Simultaneous irradiation of multiple flasks may have deleterious effects on the polymerization of microwave cured-acrylic resins. This study evaluated the effect of the number and position of flasks in the monomer release, Knoop hardness and porosity of a microwave-cured acrylic resin. Samples were made of Acron MC(R) (AMC, GC Dent. Ind. Corp.) processed at 500 W. The following associations of the number and position of the flasks were tested: one simple flask centrally placed on the turning plate (I, control); two flasks, one in the centre (IIa) and the other peripherally placed in the plate (IIb); two flasks centrally, one above (IIIa) and the other below (IIIb). The processing time varied according to the number of flasks: 3 or 4.5 min for one or two flasks, respectively. For monomer release, each specimen (n = 12) was put in an assay glass tube containing 6 mL of deionized water that was changed daily. Monomer levels were obtained by spectrophotometry at 206 nm. For hardness test (n = 10), 12 indentations were made in the surface of each specimen. Immersing the polished specimens in permanent ink and counting the porous in a stereo light microscope verified the porosity. Monomer release was significant before 24 h: GI = 263.1(153.3)a, GIIa = 236.9(180.2)a, GIIb = 441.5(446.2)a, GIIIa = 1216.6(857.9)b. Tukey test showed no statistically significant differences among the groups for porosity and hardness. Monomer release was affected by the position of the flask (P < 0.05).

Acrylic Resins↗
PubMed1999

Effects of modified pellicles on Candida biofilm formation on acrylic surfaces.

The role of saliva or serum proteins, such as mucin, fibronectin (FN) and mannan-binding protein, on Candida biofilm formation was investigated. Supplementation of saliva with FN had no significant effect on biofilm formation. In contrast, biofilm formation on either mucin-coated or FN-coated acrylic surfaces was significantly less than that of the control. These results suggest that salivary mucin or FN alone does not facilitate biofilm formation of Candida. Supplementation of serum with FN increased biofilm formation of C. glabrata compared with the control. Pretreatment of serum with anti-FN monoclonal antibody significantly reduced biofilm formation, as did pretreatment of serum with anti-mannan-binding protein monoclonal antibody or Con-A. Therefore, Candida biofilm formation on acrylic surfaces appears to be a complex phenomenon involving a multiplicity of proteins operating intraorally.

Acrylates↗
PubMed2001

Adhesion of Candida parapsilosis to epithelial and acrylic surfaces correlates with cell surface hydrophobicity.

We investigated in vitro adherence of 24 isolates of Candida parapsilosis and 12 isolates of Candida albicans with regard to their relative cell-surface hydrophobicity (CSH), adherence to human buccal epithelial cells (BEC) and acrylic surfaces. There was no significant interspecies difference in the relative adherence of C. parapsilosis and C. albicans isolates to BEC, although the former demonstrated a tendency for increased adherence. However, a significant intra-species variation in adherence among isolates of C. parapsilosis (P < 0.0001) to BEC, but not of C. albicans was noted. The superficial isolates of C. parapsilosis demonstrated a higher avidity (33%) to BEC than the systemic isolates. On regression analysis a significant positive correlation between C. parapsilosis adherence to BEC and denture acrylic surfaces was noted (r = 0.45, P = 0.02). Similarly, buccal cell adherence correlated strongly with CSH of C. parapsilosis (r = 0.63, P = 0.0008). These results shed further light on the intimate relationship between adherence and CSH in candidal colonization and imply that both C. parapsilosis and C. albicans are equally potent in colonizing mucosal surfaces with respect to the attributes investigated.

Acrylic Resins↗
PubMed2002

Impact of components of denture acrylic resin on gingival cell growth and sensitivity to Candida albicans adhesion.

The effects of four liquid components of denture acrylic resin on host cell activity and fungal adhesion were investigated in this study. The low concentration (1 micromol l(-1)) of the liquid components caused no change in the activities and morphologies of the gingival fibroblast cells, compared with control and dimethylsulphoxide-exposed cells. However, when the cells were exposed to high concentrations (1 mmol l(-1)) of benzqyl peroxide, morphological change was observed, implying that the exposure of the cells to high concentrations of the liquid components of denture acrylic causes the loss of adhesion proteins from the cells. Thus the amount of Candida adhesion to human gingival cells was analysed, and the adherence of fungi to the cell was significantly reduced when the cells were pre-exposed to methyl methacrylate, hydroquinone and benzoyl peroxide at a concentration of 1 micromol l(-1) (P < 0.01), which did not affect either the cell viability or the cell morphology. These results, taken together, suggested that the renewal of dentures could be a possible therapeutic and/or preventive aid for oral candidosis in denture-wearing patients.

Acrylic Resins↗
PubMed1999

Late patch test reaction to acrylates in a dental worker.

A dental technician developed eyelid and hand dermatitis. She had been previously patch-tested elsewhere with a sample of an acrylic material from a nail salon that reportedly was positive only after 1 month. Repeat testing with ethyl acrylate and methyl methacrylate gave no reaction at 48 or 96 hours, but became positive 5 weeks later. This very late reaction is probably a true allergic manifestation and not a case of active sensitization.

Acrylates↗
PubMed2001

The use of acrylic marbles for interposition arthroplasty in the treatment of temporomandibular joint ankylosis: follow-up of 47 cases.

This is a retrospective analysis of 47 patients (21 males, 26 females) with osseous or fibro-osseous temporomandibular joint ankylosis. who were referred to our clinic between 1981 and 1998. In all cases, an acrylic marble was used as the interpositional material to prevent recurrence after aggressive resection of the ankylotic mass. The mean mouth opening was 15.65 mm preoperatively and 32.48 mm postoperatively. Complications during the follow-up period, which ranged from 1 to 17 years, included reankylosis in three cases and extrusion and displacement of the acrylic marbles in two cases. The method produced good results and we believe that it is a simple alternative to other interposition arthroplasty procedures. Moreover, it has the advantages of reducing operating time and not requiring any personal skill.

Acrylic Resins↗
PubMed2000

[Blood-aqueous barrier after phacoemulsification with posterior chamber lens implantation; foldable acrylate lens vs PMMA lens-- a clinical study on 46 eyes].

BACKGROUND: Cataract surgery leads to a more or less pronounced postoperative inflammation due to breakdown of the blood-aqueous barrier. This alteration of the blood-aqueous barrier can be reduced by minimally invasive surgery. The purpose of this study was to quantify the early course of the postoperative alteration of the blood-aqueous barrier following phacoemulsification with implantation of conventional PMMA posterior chamber lens (IOL) in comparison with foldable acrylic lens implantation. PATIENTS AND METHODS: Forty-six eyes of 46 patients (age 63 +/- 8.8 years) without preexisting deficiences of the blood-aqueous-barrier or previous intraocular surgeries were divided into two groups: group 1 (24 patients): phacoemulsification with one-piece-PMMA-IOL implantation (6.5 mm corneoscleral tunnel incision); group 2 (22 patients): phacoemulsification with foldable acrylic-IOL implantation (3.5 mm incision, 15 patients with corneoscleral tunnel and 7 patients with clear cornea incision). All surgical procedures were performed by one surgeon. The postoperative treatment was standardized. Alteration of the blood-aqueous barrier was quantified by the laser flare-cell meter (Kowa, FC-1000) preoperatively and on the first and the second day after surgery. RESULTS: Preoperative aqueous flare values (photon counts/ms) were comparable in both groups (6.7 +/- 2.7 versus 5.6 +/- 2.7 respectively, p = 0.1). On day 1, aqueous flare in group 1 (9.7 +/- 2.9) was not statistically significantly higher than in group 2 (9.2 +/- 2.2, p = 0.2) and remained relatively constant on day 2 after surgery (9.3 +/- 3.3), whereas the aqueous flare values in group 2 decreased statistically significant (6.7 +/- 2.3, p = 0.01). Postoperatively, there was no statistically significant difference of aqueous flare values between eyes with corneoscleral tunnel incision and eyes with clear corneal incision (p = 0.7) in group 2. CONCLUSIONS: Our study shows that phacoemulsification with foldable IOL implantation leads to a mild and short-lasting alteration of the blood-aqueous barrier. Thus, implantation of foldable IOL may be useful in eyes especially with preexisting alteration of the blood-aqueous-barrier.

Acrylates↗
PubMed2001

[Scanning electron microscopic study of 12 lenses of two types of soft acrylic intraocular lenses].

BACKGROUND: Evaluation of the surface properties of two models of one-piece foldable acrylic intraocular lenses (IOLs) before and after folding and passing the IOLs through an injector. METHODS: We studied two foldable IOL models made of a polymethacrylate/2-hydroxyethylmethacrylate copolymer: EasAcryl 1(R) (Chiron) and Raysoft(R) 547H (Rayner). Twelve IOLs of each design with different diopters were examined. Light and scanning electron microscopy were performed before and after IOL folding and passing the IOLs through a Micra G103 injector (Chiron Adatomed) and an IC-2BU inserter cartridge (Chiron Microsert II). RESULTS: All IOLs presented a homogeneous surface and smoothly finished edges of haptics and optics. The inner edges of all IOL haptics and the optic edges of some IOLs had ridges at high magnifications. No IOL demonstrated any folding defects of the optic such as a folding line or scratches. Three of 16 folded IOLs showed defects or cracking of the IOL haptics due to incomplete placement in the inserter cartridge. CONCLUSIONS: The two models of soft acrylic intraocular lenses showed excellent surface quality. After folding and injection process no alteration of the optics was detected in any of the IOLs. However, the IOLs need careful placement in the inserter cartridge to avoid haptic damage.

Acrylates↗
PubMed2004

[Capsular bag distention after implantation of foldable acrylic lenses].

BACKGROUND: Incomplete removal of the viscoelastic material during cataract surgery may lead to the early postoperative capsular block syndrome. In this retrospective case series, postoperative capsular bag distention after implantation of a foldable acrylic lens is reported and the sequelae are analyzed. PATIENTS AND METHOD: In a retrospective case series, 10 eyes of altogether 1674 eyes that underwent cataract surgery in the years 2001 and 2002 were identified with early postoperative capsular block syndrome. All 10 eyes had cataract removal with continuous curvilinear capsulorhexis, phacoemulsification and a foldable acrylic lens was placed in the capsular bag. In 4 of 10 eyes cataract extraction was combined with trabeculectomy. All patients had posterior Nd:YAG capsulotomy. Refraction was performed before and after capsulotomy. RESULTS: Postoperative examination showed capsular bag distention in all eyes. The mean postoperative spherical equivalent was -3.9 +/- 1.6 Dpt. As the target refraction was -1.2 +/- 1.0 Dpt there was an average of -2.7 +/- 1.4 Dpt of induced myopia. A mild increase in postoperative anterior chamber inflammation was noted only in 1 patient and shallowing of the anterior chamber was observed in another patient. Posterior Nd:YAG capsulotomy was performed 4.5 +/- 4.3 months after surgery. The mean refractive shift after Nd:YAG capsulotomy was 1.9 +/- 1.9 Dpt. CONCLUSIONS: Unexpected postoperative myopic correction was the main manifestation of capsular block syndrome in this series. Intraoperative use of miotics prohibiting optical control of complete viscoelastic removal may explain the high proportion of combined procedures. In the case of unexpected postoperative myopia the position of the intraocular lens within the bag should be checked and attention should be paid to possibly incompletely removed viscoelastic material.

Acrylates↗
PubMed2001

AcrySof acrylic intraocular lens implantation in children: clinical indications of biocompatibility.

PURPOSE: To assess the clinical biocompatibility of AcrySof (Alcon, Ft Worth, Tex) acrylic intraocular lenses (IOLs) in the highly reactive eyes of infants and children. METHODS: A database of 230 pediatric IOL implantations was queried to allow retrospective review of all eyes implanted with an AcrySof IOL. Eyes implanted with polymethyl methacrylate (PMMA) IOLs were also reviewed and were used as a historical comparison group. Follow-up examinations were conducted by the surgeon on postoperative day 1, day 7, week 4, and week 8 and every 3 months during the first year and every 6 months thereafter. The presence of synechiae, lens deposits, and posterior capsule opacification were noted in the record at each visit. Examination notes were photocopied, and data were extracted from each visit note and entered into a computerized database. RESULTS: One hundred and ten eyes had an AcrySof IOL at an average age of 60.4 months and had an average postoperative follow-up of 64.6 weeks. In comparison, 120 eyes had PMMA IOLs inserted at an average age of 71.9 months with an average postoperative follow-up of 136.9 weeks. IOL cell deposits were seen at the slit lamp in 7 of 110 (6.4%) AcrySof lenses as compared with 26 of 120 (21.75%) PMMA lenses (P =.002). Posterior synechiae were seen in 5 of 110 (4.5%) AcrySof lenses as compared with 23 of 120 (19.2%) PMMA lenses (P =.001). Twenty-two AcrySof-implanted eyes had an intact posterior capsule. Twenty-eight PMMA-implanted eyes had an intact posterior capsule. The YAG laser capsulotomy rate was similar in the 2 groups at 45.4% for AcrySof and 50% for PMMA (P =.973). The average time from surgery to YAG posterior capsulotomy was 18.6 months with an AcrySof lens and 18.3 months with a PMMA lens (P =.951; t test). A total of 60 patients (68%) implanted with AcrySof IOLs were able to cooperate for Snellen visual acuities. Of their 67 eyes, 48 (72%) had a 20/40 or better visual acuity at the last follow-up examination, and 63 eyes (94%) had a 20/100 or better visual acuity. Thirty-five eyes (52%) required amblyopia therapy, and patching continues as needed. CONCLUSIONS: The AcrySof IOL is representative of a new group of foldable IOLs made from flexible hydrophobic acrylic material. The AcrySof IOL appears clinically to be biocompatible when placed in the eyes of children despite the increased tissue reactivity known to occur in young patients.

Acrylic Resins↗
PubMed2005

Topical application of representative multifunctional acrylates produced proliferative and inflammatory lesions in F344/N rats and B6C3F1 mice, and squamous cell neoplasms in Tg.AC mice.

Widespread human exposure to multifunctional acrylates is of concern, due to their inherent reactivity and irritating properties. Trimethylolpropane triacrylate (TMPTA) and pentaerythritol triacrylate (PETA) are industrially important representatives of multifunctional acrylates. The current studies characterized the toxicity of 3-month topical administration of technical grade TMPTA and PETA in F344/N rats and B6C3F1 mice, and evaluated the carcinogenic potential of TMPTA and PETA in hemizygous Tg.AC (v-Ha-ras) transgenic mice. Administration of 0.75, 1.5, 3, 6, and 12 mg/kg TMPTA and PETA for 3 months resulted in hyperplastic, degenerative, and necrotic lesions, accompanied by chronic inflammation of the skin, with severities generally increasing with dose. Lesions were slightly more severe in rats, when compared with mice, and illustrate the irritant potential of TMPTA and PETA. A similar dosage regimen was used for the 6-month study with Tg.AC mice. Topical application of TMPTA and PETA to Tg.AC mice showed dose-dependent increases in squamous cell papillomas at the site of application, with decreases in the latency of their appearance in mice receiving 3 mg/kg or greater. Papillomas, the reporter phenotype in Tg.AC mice, were accompanied by a few squamous cell carcinomas, along with hyperplastic and inflammatory lesions. Although chronic inflammation might have contributed to the development of the skin lesions, the dose-related nature of the induction of the skin papillomas in Tg.AC mice by TMPTA and PETA may reflect a potential for carcinogenicity.

Acrylates↗
PubMed1998

The relationship between the cell length, adhesion to acrylic and relative cell surface hydrophobicity of Candida parapsilosis.

Candida parapsilosis is an emerging opportunistic pathogen which causes systemic and superficial infections in immunocompromised hosts. Successful colonization and subsequent infection of the host by a microorganism depends upon its ability to adhere to host surfaces, and its relative cell surface hydrophobicity (CSH) is a contributory physical force involved in the process. During a comprehensive study of a battery of C. parapsilosis isolates, we noted wide variations in their cell size. Hence we examined the relationship between the cell length, in vitro adhesion to acrylic surfaces and relative CSH of 24 isolates of C. parapsilosis from superficial and systemic sources. A strong positive correlation was observed between the cell length and adhesion of Candida to acrylic surfaces (r=0.56; P=0.004) as well as the cell length and the relative CSH, as measured by a hydrocarbon assay method (r=0.72, P=0.0001). Further, the cell length of both the superficial and systemic isolates correlated well with their CSH (r=0.63, P=0.01; r=0.63, P=0.03 for superficial and systemic isolates, respectively). These data provide a tantalizing glimpse of the structural and functional dynamics of the candidal cell surface.

Acrylic Resins↗
PubMed2001

A hybrid computational fluid dynamics and physiologically based pharmacokinetic model for comparison of predicted tissue concentrations of acrylic acid and other vapors in the rat and human nasal cavities following inhalation exposure.

To assist in interspecies dosimetry comparisons for risk assessment of the nasal effects of organic acids, a hybrid computational fluid dynamics (CFD) and physiologically based pharmacokinetic (PBPK) dosimetry model was constructed to estimate the regional tissue dose of inhaled vapors in the rat and human nasal cavity. Application to a specific vapor would involve the incorporation of the chemical-specific reactivity, metabolism, partition coefficients, and diffusivity (in both air and tissue phases) of the vapor. This report describes the structure of the CFD-PBPK model and its application to a representative acidic vapor, acrylic acid, for interspecies tissue concentration comparisons to assist in risk assessment. By using the results from a series of short-term in vivo studies combined with computer modeling, regional nasal tissue dose estimates were developed and comparisons of tissue doses between species were conducted. To make these comparisons, the assumption was made that the susceptibilities of human and rat olfactory epithelium to the cytotoxic effects of organic acids were similar, based on similar histological structure and common mode of action considerations. Interspecies differences in response were therefore assumed to be driven primarily by differences in nasal tissue concentrations that result from regional differences in nasal air flow patterns relative to the species-specific distribution of olfactory epithelium in the nasal cavity. The results of simulations with the seven-compartment CFD-PBPK model suggested that the olfactory epithelium of the human nasal cavity would be exposed to tissue concentrations of acrylic acid similar to that of the rat nasal cavity when the exposure conditions are the same. Similar analysis of CFD data and CFD-PBPK model simulations with a simpler one-compartment model of the whole nasal cavities of rats and humans provides comparable results to averaging over the compartments of the seven-compartment model. These results indicate that the general structure of the hybrid CFD-PBPK model applied in this assessment would be useful for target tissue dosimetry and interspecies dose comparisons for a wide variety of vapors. Because of its flexibility, this CFD-PBPK model is envisioned to be a platform for the construction of case-specific inhalation dosimetry models to simulate in vivo exposures that do not involve significant histopathological damage to the nasal cavity.

Acrylates↗
PubMed2001

Surface contamination to UV-curable acrylates in the furniture and parquet industry.

Surface contamination to ultraviolet radiation curable coatings (UV coatings), used increasingly in the parquet and furniture industry, is a matter of concern as a source for skin contamination. UV coatings contain chemically and biologically reactive acrylates, well known as skin contact irritants and sensitizers. Surface contamination may spread secondarily to equipment and other unexpected areas even outside the workplace. Yet, studies concerning this type of contamination are lacking due to lack of suitable sampling methods. Surface contamination of the work environment with risk for skin exposure to UV coating was measured employing a quantitative adhesive tape sampling method developed for this purpose. A pilot study was first performed at three workplaces to evaluate the contamination. In the main study, we wanted to locate and identify in detail the surface contamination of areas where problems exist, and to determine the extent of the problem. Measurements were performed at seven workplaces on two separate workdays (round 1 and 2) within a six-month period. Samples were collected from the workplaces based on the video monitoring of skin contact frequency with the surfaces and categorized into three groups to analyze risk. The pilot study indicated that surface contamination to TPGDA containing UV coatings was common, found in 76 percent of the surfaces, and varied with a maximum of 909 microg TPGDA 10 cm(-2) sampling area. In the main study TPGDA was found in 153 out of 196 collected samples (78.1%); for round one 78.1 percent (82 out of 105 samples) and for round two 78.0 percent (71 out of 91 samples). The average TPGDA mass on positive surface samples was on the first round 2,247 +/- 7,462 microg, and on the second round 2,960 +/- 4,590 microg. We conclude that surface contamination to uncured UV coatings at UV-curing lines is common and this involves a risk for harmful, unintentional skin exposure to acrylates.

Acrylates↗
PubMed1995

Disposition and metabolism of acrylic acid in C3H mice and Fischer 344 rats after oral or cutaneous administration.

Acrylic acid (AA) is used in large amounts to produce acrylic esters and polymers. Here we report on the disposition and metabolism of [1-14C]AA in male C3H mice and Fischer 344 (F344) rats after oral (40 and 150) mg/kg) or cutaneous (10 and 40 mg/kg) administration. Although these and other strains of rodents have been used frequently in toxicity studies of AA, results of pharmacokinetic studies are available for only the Sprague-Dawley rat. In the current study, C3H mice rapidly absorbed and metabolized orally administered AA, with about 80% of the dose exhaled as 14CO2 within 24 h. Excretion in urine and feces accounted for approximately 3% and 1% of the dose, respectively. Elimination of 14C from plasma, liver, and kidney was rapid but was slower from fat. The disposition of orally administered AA in F344 rats was similar to the results obtained from mice. After cutaneous administration to C3H mice, about 12% of the dose was absorbed, while the remainder apparently evaporated. Approximately 80% of the absorbed fraction of the dose was metabolized to 14CO2 within 24 h. Excretion in urine and feces each accounted for less than 0.5% of the dose. Elimination of radioactivity from plasma, liver, and kidney was rapid; however, levels in fat were higher at 72 h than at 1 or 8 h. After cutaneous administration to F344 rats, 19-26% of the dose was absorbed, and the rest apparently evaporated. Disposition of the absorbed fraction of the dose was similar to results found in mice. Results from an in vitro experiment with rat skin showed that at least 60% of the applied dose evaporated and about 25% was absorbed, confirming the in vivo results. High-performance liquid chromatography (HPLC) analysis of rat urine and rat and mouse tissues indicated that absorbed AA was rapidly metabolized by the beta-oxidation pathway of propionate catabolism. In summary, rapid detoxification of systemically absorbed AA, as observed here in C3H mice and F344 rats, can explain findings that AA causes minimal systemic toxicity despite its causing irritation at portal-of-entry tissues.

Acrylates↗
PubMed1987

Testing of gloves for permeability to UV-curable acrylate coatings.

The handling of UV-curable acrylate formulations used in the coating of optical fiber requires protective measures to prevent contact dermatitis and/or allergic dermatitis. To characterize the permeability of various glove materials to a UV-curable acrylate coating, a study was undertaken using a modification of a standard ASTM permeability test, which demonstrated that nitrile rubber gloves provided the best protection of those glove materials tested.

Acrylates↗