Thermoplastic elastomers having improved barrier properties

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...

Reexamination Certificate

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C525S199000, C525S200000, C525S214000, C525S215000, C525S232000, C525S240000

Reexamination Certificate

active

07060753

ABSTRACT:
Thermoplastic vulcanizates having improved barrier properties, comprising a high melt flow index thermoplastic olefin resin, butyl rubber and an oligomer of isobutylene and butene.

REFERENCES:
patent: 3037954 (1962-06-01), Gessler et al.
patent: 4212787 (1980-07-01), Matsuda et al.
patent: 4607074 (1986-08-01), Hazelton et al.
patent: 4616052 (1986-10-01), Habibullah
patent: 5143978 (1992-09-01), Berta
patent: 6790911 (2004-09-01), Perevosnik et al.

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