Polymers having stable anhydride rings

Details Polymers having stable anhydride rings Polymers having stable anhydride rings

1992-05-08

1993-06-08

Ziegler, Jacob

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

Synthetic resins

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

525271, 525299, 525301, 525309, 5253303, C08F26704

Patent

active

052180530

ABSTRACT:
Polymers comprising anionically polymerized monomers such as butadiene or styrene and adjacent units of (1-methyl-1-alkyl)alkyl esters such as t-butylmethacrylate, as well as selectively hydrogenated derivatives thereof, are heated to at least 180.degree. C. to convert the adjacent ester units to stable anhydride rings.

REFERENCES:
patent: 3948846 (1976-04-01), Waters
patent: 5098959 (1992-03-01), McGrath et al.

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