发明授权
- 专利标题: Thermoplastic polyester-carbonate/polysiloxane block copolymers
- 专利标题(中): 热塑性聚酯 - 碳酸酯/聚硅氧烷嵌段共聚物
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申请号: US428837申请日: 1989-10-30
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公开(公告)号: US5032661A公开(公告)日: 1991-07-16
- 发明人: Volker Serini , Werner Nouvertne , Ulrich Grigo , Winfried Paul , Dieter Freitag
- 申请人: Volker Serini , Werner Nouvertne , Ulrich Grigo , Winfried Paul , Dieter Freitag
- 申请人地址: DEX Leverkusen-Bayerwerk
- 专利权人: Bayer Aktiengesellschaft
- 当前专利权人: Bayer Aktiengesellschaft
- 当前专利权人地址: DEX Leverkusen-Bayerwerk
- 优先权: DEX3838106 19881110
- 主分类号: C08G77/445
- IPC分类号: C08G77/445 ; C08G63/64 ; C08G63/68 ; C08G64/18 ; C08G77/42 ; C08G77/448
摘要:
Polyester-carbonate/polysiloxane block copolymers containing the following recurring structural units: ##STR1## wherein the structural units (1) comprise at least 75 wt.% of the sum of the structural units (1) and (2), exhibit better low temperature tough fracture properties than the known polyester-carbonate/polysiloxane block copolymers containing comparable recurring structural units on comparison of polyester-carbonate/polysiloxane block copolymers of the same heat resistance.
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