Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1993-11-15
1997-03-25
Thibodeau, Paul 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 77, 525 80, 525 83, 525125, 525127, 525130, C08F 830
Patent
active
056145896
ABSTRACT:
Transparent methacrylate-acrylonitrile-butadiene-styrene (MABS) thermoplastic copolymers may be provided with electrostatic dissipative (ESD) properties, while maintaining or enhancing physical properties of the MABS, such as impact strength, by blending the MABS with an inherently antistatic thermoplastic urethane copolymer which is the reaction product of a hydroxy-terminated polyalkylene ether oligimer, a C.sub.2 -C.sub.6 alkanediol and an aromatic diisocyanate, and compatibilizing the blend of MABS and urethane with an acrylonitrile-butadiene-styrene rubbery copolymer produced by emulsion polymerization containing at least 40 weight percent butadiene monomer and a ratio of styrene to acrylonitrile which will produce a rubbery copolymer having a refractive index in the range of about 1.53 to 1.55. All three copolymer components of the transparent blend have refractive indices in the range of about 1.53 to 1.55.
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Hochberg Arie
Niznik George E.
Critharis Mary
Kawasaki Chemical Holding Co., Inc.
Thibodeau Paul J.
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