发明名称 |
AMPHIPHILIC GRAFT POLYMERS BASED ON GRAFT BASES CONTAINING N-VINYLCARBOXYLIC ACID UNITS, PROCESS FOR THEIR PREPARATION AND THEIR USE |
摘要 |
Amphiphilic graft copolymers are prepared by grafting a pre-formed graft base polymer comprising at least 5% by weight of units of formula (I)where R1 and R2 are independently H or C1 to C6 alkyl groups. The monomer grafted to the pre-formed graft base polymer is at least one of styrene or a C1 to C2 alkylstyrene, and optionally other monoethylenically unsaturated monomers. At least 5 mole % of the groupsare cleaved from the grafted copolymer thus formed. |
申请公布号 |
EP0944657(A1) |
申请公布日期 |
1999.09.29 |
申请号 |
EP19970952006 |
申请日期 |
1997.11.28 |
申请人 |
BASF AKTIENGESELLSCHAFT |
发明人 |
NEGELE, ANTON;RUEBENACKER, MARTIN;UTECHT, JENS;MEIXNER, HUBERT |
分类号 |
A61K8/72;A61K8/91;A61Q5/00;A61Q5/12;A61Q11/00;A61Q19/10;B01F17/00;B01F17/22;B01F17/52;C04B24/26;C05G3/10;C08F8/12;C08F271/00;C08F271/02;C08J3/03;C09B62/00;C09D151/00;C09G1/00;C09K17/20;C11D1/88;C11D3/37;D21H17/34;D21H21/02;D21H21/28 |
主分类号 |
A61K8/72 |
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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