发明授权
US07608669B2 Preparation of impact-resistant thermoplastic materials on the basis of styrene/butadiene copolymers with polydisperse blocks
有权
基于具有多分散性嵌段的苯乙烯/丁二烯共聚物制备耐冲击热塑性材料
- 专利标题： Preparation of impact-resistant thermoplastic materials on the basis of styrene/butadiene copolymers with polydisperse blocks
- 专利标题（中）： 基于具有多分散性嵌段的苯乙烯/丁二烯共聚物制备耐冲击热塑性材料
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申请号： US10537738申请日： 2002-11-08
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公开(公告)号： US07608669B2公开(公告)日： 2009-10-27
- 发明人: Graciela Morales-Balado , Rodolfo Flores-Flores , Antonio Montalvo-Robles , Ramon Enrique Diaz De Leon-Gomez , Pablo Acuna-Vazquez
- 申请人： Graciela Morales-Balado , Rodolfo Flores-Flores , Antonio Montalvo-Robles , Ramon Enrique Diaz De Leon-Gomez , Pablo Acuna-Vazquez
- 申请人地址： MX Altamire (Tamaulipas)
- 专利权人： Dynasol Elastomeros, S.A. De C.V.
- 当前专利权人： Dynasol Elastomeros, S.A. De C.V.
- 当前专利权人地址： MX Altamire (Tamaulipas)
- 代理机构： Browdy and Neimark, PLLC
- 国际申请： PCT/MX02/00105 WO 20021108
- 国际公布： WO2004/041887 WO 20040521
- 主分类号： C08F297/04
- IPC分类号： C08F297/04 ; C08L53/02 ; C08F2/38
摘要：
This invention describes the obtainment of impact-resistant materials from a block copolymer that comprises as monomers an alkadiene (conjugated diene) and a vinyl aromatic compound, which is used as impact modifier to obtain such materials and in which, at least, one of the blocks of the vinyl aromatic compound is polydisperse. The invention allows obtaining morphologies such as rods, points or capsules by incorporating such copolymer into a polymeric matrix derived from vinyl aromatic monomers independently from other agents such as chain transfer agents, and achieving increases, in the impact values up to 50% through the use of the copolymer of this invention.
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