Esterified styrene/maleic anhydride polymer

Details Esterified styrene/maleic anhydride polymer Esterified styrene/maleic anhydride polymer

1997-08-15

1998-06-30

Lipman, Bernard

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525384, C08F 814

Patent

active

057735182

ABSTRACT:
A binder polymer is a styrene/maleic anhydride copolymer in which the maleic anhydride residues are mono-esterified to between about 50 and about 65 mole percent of an alkyl, aryl, cycloalkyl, alkaryl, or arylalkyl alcohol having a molecular weight greater than 100, to between about 15 and about 50 mole percent of a C.sub.1 -C.sub.3 -alkyl alcohol, and to at least about 80 mole percent total. The polymer has between about 45 and about 65 mole percent styrene residues and between about 35 and about 55 mole percent maleic anhydride residues, a weight average molecular weight of between about 80,000 and about 200,000, and an acid number of between about 170 and about 220.

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Chemical Abstracts 53:9731d; 59:P2970b; 29:155ole; 60:14618C; 62:284oa; 53:18540a; 55:P8946C; 46:731a; 47:1379b; 47:1379g; 73:P26243p; 73:89867r; 74:P13799v; 75:P64632P; and 74:113371t.

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