Methacrylimide-containing polymer

Details Methacrylimide-containing polymer Methacrylimide-containing polymer

1989-12-28

1992-03-17

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...

525378, 525379, 525382, C08F 832

Patent

active

050969765

ABSTRACT:
Disclosed is a thermoplastic methacrylimide-containing polymer comprising 2 to 100% by weight of structural units represented by the following formula (I): ##STR1## wherein R is hydrogen or a hydrocarbon group having 1 to 20 carbon atoms, and 0 to 98% by weight of structural units derived from an ethylenically unsaturated monomer, wherein the number of fine particles having a size of 0.5 to 25 .mu.m as measured by a particle counter in the polymer is not more than 50,000 per gram of the polymer.

REFERENCES:
patent: 2146209 (1939-02-01), De Witt et al.
patent: 3284425 (1966-11-01), Schroder et al.
patent: 4246374 (1981-01-01), Kopchik
patent: 4727117 (1988-02-01), Hallden-Abberton et al.
patent: 4745159 (1988-05-01), Anzai et al.
patent: 4954575 (1990-09-01), Sasaki et al.

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