发明授权
- 专利标题： Composites and polymer compositions for making the same
- 专利标题（中）： 用于制造相同的复合材料和聚合物组合物
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申请号： US127108申请日： 1993-09-24
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公开(公告)号： US5374680A公开(公告)日： 1994-12-20
- 发明人: Deenadayalu Chundury , Anthony S. Scheibelhoffer , Berdine L. Leonard , Ronald E. Thompson , Randall S. McAllister , Surachai Wimolkiatisak , Anthony F. Dean Jr.
- 申请人： Deenadayalu Chundury , Anthony S. Scheibelhoffer , Berdine L. Leonard , Ronald E. Thompson , Randall S. McAllister , Surachai Wimolkiatisak , Anthony F. Dean Jr.
- 申请人地址： OH Cleveland
- 专利权人： Ferro Corporation
- 当前专利权人： Ferro Corporation
- 当前专利权人地址： OH Cleveland
- 主分类号： B32B27/30
- IPC分类号： B32B27/30 ; C08L23/02 ; C08L25/04 ; C08L51/06 ; C08L53/02 ; C08L51/00
摘要：
A polymer blend composition consisting essentially of:(i) at least about 55% by weight polystyrene,(ii) from about 1% to about 45% by weight of a selectively hydrogenated block copolymer of conjugated dienes and vinyl aromatic monomers which has been grafted with a carboxylic reagent, wherein the block copolymer contains up to about 50% by weight bound vinyl aromatic monomer, and(iii) from about 0.3% to 45% by weight of at least one block polymer of a vinyl aromatic monomer and conjugated diene, wherein the block polymer contains greater than about 60% by weight bound vinyl aromatic monomer.The polymer composition is useful in preparing multilayer thermoformable structures and articles comprising (A) at least one cap layer and (B) at least one core layer, such as liners for refrigerators and freezers. The multilayer structures and polymer composition have good thermoformability, chemical resistance and surface properties including a glossy finish. The materials are compatible with new blowing agents, such as hydrochlorofluorocarbons and hydrofluorocarbons. The layers of the multilayer structure do not require a glue layer.
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