Polyphenylene oxide delivery system for adhesive compositions

Details Polyphenylene oxide delivery system for adhesive compositions Polyphenylene oxide delivery system for adhesive compositions

1997-02-24

1998-09-15

Jagannathan, Vasu

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

524504, 524505, 525148, C08L 4500, C08L 7112

Patent

active

058079157

ABSTRACT:
The specification discloses a polyphenylene oxide delivery system for use in preparing an A-B-A block copolymer adhesive formulation having an increased service temperature. The delivery system comprises a preblend of polyphenylene oxide (PPO) resin having a T.sub.g within the range of from about 150.degree. to about 210.degree. C. and a B-block compatible resin. The PPO/B-block resin preblend enables introduction of more PPO into the composition thereby increasing the service temperature of the adhesive formulation.

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