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
1989-08-15
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
048576018
ABSTRACT:
Copolymers of p-acetoxystyrene and dialkyl muconates or alkyl sorbates are selectively hydrolyzed to copolymers of p-vinylphenol and dialkyl muconates or alkyl sorbates using acid or base catalysis in an alcohol or water.
REFERENCES:
patent: 4689371 (1987-08-01), Elmore et al.
patent: 4775730 (1988-09-01), Gupta
Hoechst Celanese Corp.
Lipman Bernard
Schofer Joseph L.
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