申请人:NIPPON ZEON CO., LTD.
公开号:EP0544201A1
公开(公告)日:1993-06-02
An acrylic ester copolymer plastisol composition comprises (A) copolymer particles comprising, as the major components thereof, (a) 98 to 50 weight % of an alkyl acrylate unit having an alkyl group of 1 to 8 carbon atoms and/or an alkyl methacrylate unit having an alkyl group of 1 to 8 carbon atoms and (b) 2 to 50 weight % of a diene monomer unit, (B) a plasticizer and, optionally, (C) a vulcanizing agent. Another acrylic ester copolymer plastisol composition comprises (A) copolymer particles comprising an ionic crosslinked copolymer prepared by ionic crosslinking of a copolymer comprising, as the major components thereof, (a) 97 to 50 weight % of an alkyl acrylate unit having an alkyl group of 1 to 8 carbon atoms and/or an alkyl methacrylate unit having an alkyl group of 1 to 8 carbon atoms, (b) 2 to 40 weight % of a diene monomer unit and (c) 1 to 20 weight % of a radical polymerizable unsaturated carboxylic acid unit of 3 to 8 carbon atoms having a carboxyl group and (B) a plasticizer. The ionic crosslinking is made through the carboxyl group in the copolymer by addition of a monovalent or divalent metal cation. The acrylic ester copolymer plastisol composition has excellent storage stability even when generally used inexpensive plasticizers are used, gives a molded sheet showing no bleeding and generates no toxic gas on heating to a high temperature, on burning or in case of fire.
一种丙烯酸酯共聚物塑料溶胶组合物包括(A)共聚物颗粒,其主要成分为(a)98-50 重量%的具有 1-8 个碳原子烷基的丙烯酸烷基酯单元和/或具有 1-8 个碳原子烷基的甲基丙烯酸烷基酯单元,以及(b)2-50 重量%的二烯单体单元,(B)增塑剂,以及可选的(C)硫化剂。另一种丙烯酸酯共聚物塑料溶胶组合物包括 (A) 共聚物颗粒,该共聚物颗粒由离子交联共聚物制备而成,离子交联共聚物的 主要成分包括(a) 97 至 50 重量%的具有 1 至 8 个碳原子烷基的丙烯酸烷基酯单元和/或具有 1 至 8 个碳原子烷基的甲基丙烯酸烷基酯单元;(b) 2 至 40 重量%的二烯单体单元;(c) 1 至 20 重量%的具有 3 至 8 个碳原子羧基的可自由基聚合的不饱和羧酸单元;以及 (B) 增塑剂。离子交联是通过共聚物中的羧基加入一价或二价金属阳离子实现的。这种丙烯酸酯共聚物塑料溶胶组合物即使使用一般的廉价增塑剂,也具有极佳的贮存稳定性,成型后的板材不渗色,在加热到高温、燃烧或着火时也不会产生有毒气体。