Methacrylimide-containing polymer and resin composition containi

Details Methacrylimide-containing polymer and resin composition containi Methacrylimide-containing polymer and resin composition containi

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...

525143, 525169, 525170, 525175, 525176, 525182, 525183, 525205, 525221, 525228, 5253276, 5253296, 5253305, 525378, 525379, C08F 832

Patent

active

050969684

ABSTRACT:
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 content of iron in the polymer is not larger than 20 ppm and the difference between the maximum value and minimum value of the degree of imidization is preferably not larger than 5% by weight. This methacrylimide-containing polymer is used alone or as a blend thereof with another thermoplastic polymer.

REFERENCES:
patent: 2146209 (1939-02-01), Graves
patent: 4246374 (1981-01-01), Kopchik
patent: 4588786 (1986-05-01), Kadono et al.
patent: 4820778 (1989-04-01), Ohtani et al.
patent: 4954575 (1990-09-01), Sasaki et al.

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