发明授权
US5319027A Miscible blends of vinyl acetate-ethylene copolymers and copolymers of
acrylic acid or maleic anhydride
失效
乙酸乙烯酯 - 乙烯共聚物和丙烯酸或马来酸酐的共混物的混溶混合物
- 专利标题： Miscible blends of vinyl acetate-ethylene copolymers and copolymers of acrylic acid or maleic anhydride
- 专利标题（中）： 乙酸乙烯酯 - 乙烯共聚物和丙烯酸或马来酸酐的共混物的混溶混合物
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申请号： US921535申请日： 1992-07-29
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公开(公告)号： US5319027A公开(公告)日： 1994-06-07
- 发明人: Richard H. Bott , Jeffrey A. Kuphal , Lloyd M. Robeson , Hsueh-Chi Lee , Cajetan F. Cordeiro
- 申请人： Richard H. Bott , Jeffrey A. Kuphal , Lloyd M. Robeson , Hsueh-Chi Lee , Cajetan F. Cordeiro
- 申请人地址： PA Allentown
- 专利权人： Air Products and Chemicals, Inc.
- 当前专利权人： Air Products and Chemicals, Inc.
- 当前专利权人地址： PA Allentown
- 主分类号： C08L25/04
- IPC分类号： C08L25/04 ; C08F2/44 ; C08L25/08 ; C08L31/04 ; C08L33/00 ; C08L33/02 ; C08L33/04 ; C08L33/08 ; C09D131/04 ; C09J131/04
摘要：
Polymeric compositions are disclosed containing miscible blends of copolymers, one of which is a vinyl acetate/ethylene copolymer containing about 5 to 30 weight percent ethylene and the other is a copolymer of either acrylic acid or a maleic anhydride with a comonomer selected from styrene, ethyl acrylate, n-butyl acrylate and 2-ethylhexyl acrylate. Windows of miscibility for each of the copolymer blends have been defined and the blends can be advantageously formed by polymerizing the acrylic acid copolymer in the presence of an emulsion of the vinyl acetate/ethylene copolymer in such a way that the polymerization takes place in the suspended vinyl acetate/ethylene copolymer rather than in the aqueous phase.
公开/授权文献
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