申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:EP0511385A1
公开(公告)日:1992-11-04
A thermoplastic graft copolymer composed of a polymer with a glass transition point of 10 °C or below as a principal chain and an aromatic oligomer with a flow temperature of 100 °C or above as a side chain; and a process for the production thereof, particularly, comprising grafting an aromatic oligomer which contains at least 50 % of the structure units of formula (I) onto the principal chain, wherein X represents O or S; Ar represents (a), (b) or (c); R¹ and R² represent each C₁ to C₃ alkyl or phenyl; and p and q are each 0, 1 or 2. This copolymer is used in heat-resistant hoses, sealants and automotive materials as a heat-resistant plastic elastomer.
一种热塑性接枝共聚物,由玻璃化转变点为 10℃或以下的聚合物作为主链和流动温度为 100℃或以上的芳香族低聚物作为侧链组成;及其生产工艺,特别是将至少含有 50%式(I)结构单元的芳香族低聚物接枝到主链上,其中 X 代表 O 或 S;Ar 代表(a)、(b)或(c);R¹ 和 R² 分别代表 C₁ 至 C₃ 烷基或苯基;p 和 q 分别为 0、1 或 2。这种共聚物可作为耐热塑料弹性体用于耐热软管、密封剂和汽车材料。