Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1997-07-17
1999-03-30
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...
525236, C08L 900
Patent
active
058891196
ABSTRACT:
A method of recycling vulcanized rubber comprising the steps of grinding vulcanized rubber into particles having an average diameter in the range from about 50 .mu.m to about 1.2 mm, and adding the ground tire rubber to a low-modulus binder to form a thermoplastic rubbery composition comprising from about 10 to about 80 parts by weight of the low-modulus binder including from about 25 to about 75 parts by weight of a crystalline polyolefin resin, and from about 25 to about 75 parts by weight of a binder rubber, wherein the rubber is vulcanized by dynamic vulcanization to form fine particles the binder resin, and from about 90 to about 20 parts by weight of ground vulcanized rubber wherein said step of adding the ground rubber occurs at a temperature above the melting point of the crystalline polyolefin resin.
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"Reclaimed Tire Rubber in TPE Compounds", by John D. Osborn, Rubber World, May 1995 Edition, pp. 34-35.
Coran Aubert Y.
Howard Faith
Michl Paul R.
The University of Akron
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