Ethylene oxide/epihalohydrin copolymer antistatic additive for c

Details Ethylene oxide/epihalohydrin copolymer antistatic additive for c Ethylene oxide/epihalohydrin copolymer antistatic additive for c

1988-07-15

1990-06-05

Bleutge, John C.

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

Synthetic resins

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

528419, 528421, C08L 2706, C08L 2708

Patent

active

049315064

ABSTRACT:
An antistatic additive for PVC, or other chlorine containing polymers, or polystyrene and/or other styrene containing polymers, including but not limited to polymers of styrene and acrylonitrile, such as ABS (acrylonitrile-butadiene-styrene) or mixtures thereof and blends of any of these, wherein the antistatic additive includes, at least in part, ethylene oxide and epihalohydrin. The antistatic additive is semicrystalline, and the ethylene oxide component is in a range of from about 60% to 95% by weight, preferably 80% to 95% by weight, and the epihalohydrin component is in a range of from about 5% to about 40% by weight, preferably 5% to 20% by weight. Optionally, up to 25% of the additive can include, as a replacement for epihalohydrin, one or more 1,2-epoxides. The semicrystalline antistatic additive is employed in a range of from about 3% to about 35%, preferably from about 3% to 20% by weight and the polymeric materials mentioned above are employed in a range of from about 65% to about 97% and preferably from about 80% to about 97% by weight. The semicrystalline antistatic additive of ethylene oxide and epihalohydrin are found to be superior to commercially available antistats for PVC, other chlorine containing polymers, or polystyrene and/or other styrene containing polymers, including but not limited to polymers of styrene and acrylonitrile, such as ABS (acrylonitrile-butadiene-styrene) or mixtures thereof, and mixtures of any of the above.

REFERENCES:
patent: 3158581 (1964-11-01), Vandenberg
patent: 3425981 (1969-02-01), Puletti et al.
patent: 4230827 (1980-10-01), Myers
patent: 4588773 (1986-05-01), Federi et al.

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