Styrene copolymer and process for producing said copolymer

Details Styrene copolymer and process for producing said copolymer Styrene copolymer and process for producing said copolymer

1991-04-11

1993-04-13

Teskin, Fred

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

Synthetic resins

Polymers from only ethylenic monomers or processes of...

526159, 526160, 526165, 526251, 526293, 526347, 528481, 528503, C08F21206, C08F 464

Patent

active

052024024

ABSTRACT:
Styrene copolymers having a repeating unit (I) represented by the general formula: ##STR1## and a repeating unit (II) represented by the general formula: ##STR2## (wherein all the symbols are as defined in the appended claims), and having the stereoregularity that is mainly syndiotactic, and cross-linked styrene copolymers obtained by cross-linking the above styrene copolymers. The styrene copolymers are reactive resins (heat-sensitive resins and radiation-sensitive resins) and are excellent in heat resistance and chemical resistance. The cross-linked styrene copolymers are excellent in heat resistance, chemical resistance and mechanical strength.

REFERENCES:
patent: 2989515 (1961-06-01), Bruton et al.
patent: 4192921 (1980-03-01), Dales
patent: 4680353 (1987-07-01), Ishihara et al.
Natta et al., "Stereospecific Polymerization . . . of Vinyl Aromatic Monomers", Makromol. Chemie, 28, 253 (1958).
Nielsen, Mechanical Properties of Polymers and Composites, vol. 1, Marcel Dekker, Inc., N.Y., 174-177, 180-184 (1974).

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