发明名称 |
PROCESS FOR MAKING POLYPROPYLENE GRAFT COPOLYMERS CONTAINING ANHYDRIDE GROUPS |
摘要 |
A graft copolymer containing anhydride groups is made by (1) making a graft copolymer comprising a backbone of a propylene polymer material having graft polymerized thereto polymerized monomers selected from the group consisting of (a) at least one acrylic acid substituted with a 1-3 C alkyl group and (b) a mixture of at least one of these substituted acrylic acids and a vinyl compound capable of copolymerizing therewith, wherein the total amount of polymerized monomers is about 20 parts toabout 240 parts per hundred parts of the propylene p olymer material and the amount of the substituted acrylic acid is 60 mole % or more of the polymerized monomers, and (2) heating the graft copolymer to a temperature of about 170.degree.C to about 300.degree.C to dehydrate the acid groups in the graft copolymer to form anhydride groups. |
申请公布号 |
CA2245386(C) |
申请公布日期 |
2003.07.08 |
申请号 |
CA19982245386 |
申请日期 |
1998.08.20 |
申请人 |
MONTELL NORTH AMERICA INC. |
发明人 |
SYED, ABUZAR;DENICOLA, ANTHONY J., JR. |
分类号 |
C08F8/00;C08F8/48;C08F220/02;C08F255/02;C08L51/04;C08L51/06 |
主分类号 |
C08F8/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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