Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-05-24
1994-08-02
Nagumo, Mark
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
525 74, 525 75, 525 77, 525197, C08L 5104
Patent
active
053346599
ABSTRACT:
Copolymer compositions useful as impact modifiers are prepared by blending, under reactive conditions, at least one functionalized addition polymer with an excess of at least one functionalized elastomer reactive therewith to form a preblend, and subsequently blending said preblend, under reactive conditions, with a further amount of at least one functionalized addition polymer. The preferred addition polymers and elastomers are carbamate-functionalized styrene-acrylonitrile copolymers and maleic anhydride-grafted EPDM elastomers, respectively. The product of the two-step blending operation is a composition comprising a continuous addition polymer phase and elastomer particles dispersed therein, said elastomer particles containing occluded addition polymer. Said composition is stabilized by copolymer formation between the elastomer particles and the addition polymer.
REFERENCES:
patent: 4060689 (1977-11-01), Harris
patent: 4097549 (1978-06-01), Kruse
patent: 4542179 (1985-09-01), Falk et al.
patent: 4977049 (1990-12-01), Kato
patent: 5068284 (1991-11-01), Ullman et al.
patent: 5124410 (1992-06-01), Campbell
patent: 5212240 (1983-05-01), Dion et al.
patent: 5225483 (1993-07-01), Datta et al.
Finkenaur et al., Polymer Preprints (ACS) 23,91-2 (1982).
Chien et al., Journal of Polymer Science; Polymer Chemistry Edition, 23, 2247-2254 (1985).
Scobbo, Jr. James J.
Stoddard Gregory J.
General Electric Company
Nagumo Mark
Pittman William H.
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