申请人:IPPOSHA OIL INDUSTRIES CO. LTD.
公开号:EP1048708A1
公开(公告)日:2000-11-02
An aqueous emulsion-type release coating composition comprising (i) a product produced by reaction of an ethylene-vinyl alcohol copolymer represented by the formula (1):
wherein the sum of n, m and m' is an integer of 300 - 3,000, ratio of n/(n+m+m') is 0.1 - 0.9, and ratio of m/(m+m') is 0.9 - 1.0, with a C8-30 alkyl isocyanate, and (ii) a surface active agent which is a combination of a nonionic surface active agent having a hydrophilic-lyophilic balance (HLB) of not larger than 12, with an ionic surface active agent. The release coating composition is used as a release agent for a pressure sensitive adhesive tape or contact sheet.
一种水性乳液型脱模涂层组合物,包含(i)由式(1)代表的乙烯-乙烯醇共聚物反应生成的产物:
其中 n、m 和 m' 之和为 300 - 3,000 的整数,n/(n+m+m')之比为 0.1 - 0.9,m/(m+m')之比为 0.9 - 1.0,与 C8-30 烷基异氰酸酯反应生成的产物,以及 (ii) 一种表面活性剂,它是一种亲水-亲油平衡(HLB)不大于 12 的非离子表面活性剂与一种离子表面活性剂的组合。脱模涂层组合物可用作压敏胶带或接触片的脱模剂。