Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1987-09-11
1989-10-31
Schofer, Joseph L.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
5253289, 525353, 525355, 525366, 525369, 525378, C08F 812
Patent
active
048778435
ABSTRACT:
Copolymers of p-acetoxystyrene and allyl esters of ethylenically unsaturated acids are selectively hydrolyzed to copolymers of p-vinylphenol and allyl esters of ethylenically unsaturated acids using acid or base catalysis in an alcohol or water.
REFERENCES:
patent: 4689371 (1987-08-01), Elmore et al.
Hoechst Celanese Corporation
Lipman Bernard
Schofer Joseph L.
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