申请人:Asahi Glass Company, Limited
公开号:EP2133399A1
公开(公告)日:2009-12-16
To provide an adherence substance which has a low viscosity and good coatability, can be made solvent free, has good adhesion to an adherend and at the same time has excellent removability, can suppress peel electrostatic charge and is excellent in high speed peeling performance.
An adherence substance which is obtainable by curing a curable composition comprising a silyl group-containing polymer (S) represented by the following formula (1):
in the formula (1), R1 represents a t-valent residue obtained by removing all hydroxy groups from a compound having t pieces of hydroxy groups in the molecule; R2 represents a bivalent organic group; R3 represents a monovalent organic group having from 1 to 20 carbon atoms; X is a hydroxy group or a hydrolyzable group; Y represents a bivalent group represented by the following formula (A) or a bivalent group represented by the following formula (B); a represents an integer of from 1 to 3; r represents an integer of from 1 to 1,000; t represents an integer of from 1 to 8;
-OR5- (B)
in the formula (A), R4 represents an alkylene group having from 2 to 8 carbon atoms; and in the formula (B), R5 represents an alkylene group having from 2 to 4 carbon atoms.
提供一种粘度低、涂覆性好、可制成无溶剂、对被粘物有良好的粘附性,同时具有极佳的可去除性、可抑制剥离静电荷并具有优异的高速剥离性能的粘附物质。
一种粘附物质,可通过固化由含硅烷基聚合物(S)组成的可固化组合物获得,该聚合物由下式(1)表示:
在式(1)中,R1 代表通过从分子中具有 t 个羟基的化合物中去除所有羟基而得到的 t 价残基;R2 代表二价有机基团;R3 代表具有 1 至 20 个碳原子的一价有机基团;X 是羟基或可水解基团; Y 代表下式(A)所代表的二价基团或下式(B)所代表的二价基团; a 代表 1 至 3 的整数; r 代表 1 至 1,000 的整数; t 代表 1 至 8 的整数;
-OR5-(B)
在式 (A) 中,R4 代表具有 2 至 8 个碳原子的亚烷基;在式 (B) 中,R5 代表具有 2 至 4 个碳原子的亚烷基。