Maleimide copolymer, maleimide block copolymer and method for pr

Details Maleimide copolymer, maleimide block copolymer and method for pr Maleimide copolymer, maleimide block copolymer and method for pr

1992-06-02

1992-11-17

Seccuro, Jr., Carman J.

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

Synthetic resins

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

525263, 525302, 525309, 525317, 525322, 526262, 526328, 526341, 526343, 526344, 526351, 526352, C08F 436, C08F29300, C08F26710

Patent

active

051644517

ABSTRACT:
The maleimide copolymer of the invention is of the class of N-substituted maleimide copolymer such as N-alkyl or N-aromatic maleimide copolymer having peroxy bonds in a molecule, utilizable as a precursor for preparing a maleimide block copolymer and as a modifier for other resins. The maleimide block copolymer, which is useful as a molding material or a thermal resistance improver, is obtained by polymerizing maleimide monomers in the presence of a polymeric peroxide followed by polymerizing vinyl monomers.

REFERENCES:
patent: 3860674 (1975-01-01), Sheppard
patent: 4238381 (1980-12-01), Komai
patent: 4283512 (1981-08-01), Matsushima
patent: 4318834 (1982-03-01), Ohmura
patent: 4394480 (1983-07-01), Ujikawa
patent: 4681918 (1987-07-01), Webster
patent: 4957973 (1990-09-01), Sogah

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