Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Process of treating scrap or waste product containing solid...
Reexamination Certificate
2005-08-02
2005-08-02
Szekely, Peter (Department: 1714)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Process of treating scrap or waste product containing solid...
C521S041000, C524S114000
Reexamination Certificate
active
06924320
ABSTRACT:
A dry liquid concentrate composition is disclosed having at least about 40% by weight of a polypropylene copolymer, at least about 10% by weight of santoprene, at least about 11% by weight of a low density polyethylene, at least about 0.5% by weight of a tall oil, at least about 0.5% by weight of a mixture of saturated and unsaturated fatty esters having modified organic acid derivatives, at least about 0.5% by weight of silicone, and at least about 20% by weight of a dry crumb rubber.
REFERENCES:
patent: 5488080 (1996-01-01), Osborn
patent: 5604277 (1997-02-01), Osborn
Polymer Science Dictionary, Second Edition, Mark Alger, Chapman & Hall, p. 506.
Heseman Polly D.
Szekely Peter
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