Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-11-19
1999-08-03
Michl, Paul R.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
C08G 6348
Patent
active
059326557
ABSTRACT:
A thermoplastic molding composition which features improved impact and reduced opacity is disclosed. The composition which contains (A) 2 to 59 percent of a first grafted rubber having a weight average particle size of 0.05 to 0.30 microns, and (B) 6 to 56 percent of a second grafted rubber having a weight average particle size of 0.31 to 1.00 microns, and (C) 35 to 75 percent of a copolymeric matrix. The total rubber content of the composition is 10 to 40 percent relative to the total weight of (A), (B) and (C). The grafted rubber, both occurrences, contains a grafted phase and a core-shell phase. The grafted phase contains a styrenic copolymer and the core-shell phase, both occurrences, contains a core containing at least one crosslinked vinylaromatic polymer, and an elastomeric shell. The copolymeric matrix (C) contains a styrenic copolymer.
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Auclair Richard M.
Chang Moh Ching Oliver
Bayer Corporation
Gil Joseph C.
Michl Paul R.
Preis Aron
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