Compatibilized blends of crystalline propylene polymers and styr

Details Compatibilized blends of crystalline propylene polymers and styr Compatibilized blends of crystalline propylene polymers and styr

1990-03-30

1990-11-06

Seccuro, 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...

525 71, 525 93, 525207, 525208, C08L 2310, C08L 3506, C08L 3700, C08L 5104

Patent

active

049687476

ABSTRACT:
Thermoplastic resin compositions having good toughness and resistance to heat deformation are obtained by blending crystalline propylene polymers, elastomeric olefin polymers, random styrenic copolymers, and epoxy group-containing copolymers. For example, the composition may be a blend of polypropylene, ethylene-propylene or ethylene-propylene-diene monomer rubber, styrene/maleic anhydride copolymer, and ethylene/glycidyl methacrylate or ethylene/glycidol methacrylate/vinyl acetate copolymer. Physical properties are enhanced by the use of a two step blending procedure.

REFERENCES:
patent: 4386187 (1983-05-01), Grancio et al.
patent: 4386188 (1983-05-01), Grancio et al.
patent: 4582871 (1986-04-01), Noro et al.
patent: 4657975 (1987-04-01), Kodama et al.
patent: 4705827 (1987-11-01), Kodama et al.
Bartlett et al, Modern Plastics, Dec. 1981, p. 60.

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