Method for the production of reformed p-vinylphenol polymers whi

Details Method for the production of reformed p-vinylphenol polymers whi Method for the production of reformed p-vinylphenol polymers whi

1985-06-03

1987-11-24

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528486, 528487, 528490, 528492, 524 87, 524 99, 524106, 524190, 524251, 524252, 524257, 523307, C08F 606, C08F 600

Patent

active

047090090

ABSTRACT:
A method for the production of reformed p-vinylphenol polymers which are lightened in color comprising treating a p-vinylphenol polymer under heating at about 150.degree. C. to about 350.degree. C. in the presence of an amine, and if optionally, in the additional presence of an acid compound and/or a reducing agent, and if necessary, in the additional presence of an inert solvent.

REFERENCES:
patent: 3310541 (1967-03-01), Breuers et al.
patent: 3803113 (1974-04-01), Gluntz et al.
patent: 4169114 (1979-09-01), Cooper et al.
patent: 4354007 (1982-10-01), Scott

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