首页>
外国专利>
PROCESS FOR THE PREPARATION OF LIQUID AND POLYMERIZABLE COMPOSITIONS CONTAINING OLIGOMERIC ALLYLCARBONATE SUITABLE FOR THE PRODUCTION OF ORGANIC GLASSES ENDOWED WITH HIGH ABRASION STRENGTH
PROCESS FOR THE PREPARATION OF LIQUID AND POLYMERIZABLE COMPOSITIONS CONTAINING OLIGOMERIC ALLYLCARBONATE SUITABLE FOR THE PRODUCTION OF ORGANIC GLASSES ENDOWED WITH HIGH ABRASION STRENGTH
展开▼
机译:包含低聚烯丙基碳酸酯的液体和可聚合组合物的制备方法,该组合物适合生产具有高耐磨强度的有机玻璃
展开▼
页面导航
摘要
著录项
相似文献
摘要
Liq. compsns. polymerisable to organic glasses with high abrasion strength contain (i) 20-80, esp. 35-70wt.% oligomeric prods. with 2 terminal allyl gps. (Component A) of formula (I) CH2=CHCH2OCOO(CH2CH2OCH2 CH2OCOO)nCH2CH=CH2 (I) where n = 2-5; (ii) 20-50, esp. 25-45,wt.% monomer prod. (Component B) of formula (II). R = Me, Et, -CH2-OCOOCH2CH=CH2; n = 0, 1; R1 = -CH2OCOOCH2CH=CH2; (iii) 0-35, esp. 0-25,wt.% of reactive diluent contg. allyl, vinyl or methacrylic gps. Pref. component A is the transesterification prod. of diallyl carbonate and diethylene glycol in a mutual molar ratio of about 2:1. Component B is the transalkylation prod. of diallyl carbonate (DAC) and an aliphatic polyol with at least 4 alcoholic OH gps. in a 4:1 molar ratio of DAC:OH gps. of the polyol. Component C may be diethylene glycol bis(allylcarbonate), vinyl acetate or methyl methacrylate. The compsn. may contain 1-6 pts. wt. of a free radical initiator per 100 pts. wt. of (A+B+C). Pref. the polyol is di-trimethylolpropane, pentaerythritol, di-pentaerythritol or tri-pentaerythritol.
展开▼