Graft copolymer, process for production thereof and resin compos

Details Graft copolymer, process for production thereof and resin compos Graft copolymer, process for production thereof and resin compos

1993-03-03

1994-11-08

Jagannathan, Vasu S.

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

Synthetic resins

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

525247, 525268, 525249, 525276, 525289, 525292, 525297, 525316, 525319, 524504, C08F25502, C08F27902, C08F25902, C08F25908, C08F 476, C08F 4642

Patent

active

053628144

ABSTRACT:
There are disclosed a graft copolymer formed by grafting a styrenic monomer onto a high polymer having double bonds in the side chain to constitute highly syndiotactic polystyrenic chain as the graft component, the graft copolymer having a content of graft component of 0.005 to 99% by weight and a reduced viscosity of 0.01 to 30 dl/g as measured at a concentration of 0.05 g/dl in 1,2,4-trichlorobenzene at 135.degree. C. or a melt index of 0.001 to 500 g/10 minutes as measured at 300.degree. C. under a load of 2.16 kg; a process for efficiently producing the above graft copolymer using a catalyst comprising specific components; and a resin composition comprising the above graft copolymer, a highly syndiotactic styrenic polymer or other thermoplastic resin and, when necessary, an inorganic or organic filler. The above graft copolymer and resin composition are excellent in resistance to heat and chemicals, electrical properties, moldability, compatibility, impact resistance, etc.

REFERENCES:
patent: 4680353 (1987-07-01), Ishihara et al.
patent: 4853436 (1989-08-01), Ohata et al.
patent: 5023304 (1991-06-01), Takeuchi et al.
patent: 5166238 (1992-11-01), Nakano et al.
patent: 5247020 (1993-09-01), Nakano et al.
patent: 5250629 (1993-10-01), Tani et al.

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