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...
Reexamination Certificate
2008-02-06
2008-12-02
Harlan, Robert D. (Department: 1796)
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...
C525S088000, C525S09200D, C525S099000, C525S240000, C424S492000, C424S524000, C424S522000
Reexamination Certificate
active
07459497
ABSTRACT:
The present invention relates to a polymeric composition which has an excellent combination of properties for use in making seals and gaskets for utilization in appliances, automotive applications, and building applications, such as window glazing gaskets. These polymeric compositions offer excellent dimensional stability, low compression set, outstanding sealing characteristics, low temperature flexibility, heat resistance and ultra-violet light resistance. The present invention more specifically discloses a polymeric composition having excellent characteristics for utilization in manufacturing seals and gaskets including dimensional stability, low compression set and outstanding sealing characteristics, said polymeric composition being comprised of a blend of (A) a thermoplastic resin selected from the group consisting of polypropylene, polyethylene, poly phenylene ether, polystyrene, and styrene containing copolymer resins, (B) an elastomeric polymer selected from the group consisting of block copolymer comprising a first polymeric block that is comprised of repeat units that are derived from a vinyl aromatic monomer and a second block that is comprised of repeat units that are derived from a conjugated diolefin monomer, wherein the repeat units in the second block are hydrogenated, and wherein the repeat units in the second block are elastomeric in nature, and a crosslinked olefinic elastomer, (C) a high molecular weight crosslinked diene elastomer comprised of repeat units that are derived from conjugated diene monomer selected from the group consisting of 1,3-butadiene and isoprene, wherein the high molecular weight diene elastomer has a weight average molecular weight of at least about 200,000, and (D) an oil.
REFERENCES:
patent: 4197377 (1980-04-01), Bohm et al.
patent: 4250273 (1981-02-01), Bohm et al.
patent: 4927882 (1990-05-01), Bayan
patent: 5362787 (1994-11-01), Ngoc et al.
patent: 5380785 (1995-01-01), Ngoc et al.
patent: 5415940 (1995-05-01), Ngoc et al.
patent: 5462993 (1995-10-01), Ngoc et al.
patent: 5927029 (1999-07-01), Ngoc
patent: 7015284 (2006-03-01), Ajbani et al.
patent: 7351762 (2008-04-01), Ajbani et al.
patent: 0 930 337 (1999-07-01), None
patent: 1 031 608 (2000-08-01), None
patent: 9214969.9 (1992-07-01), None
Ajbani Manoj
Edme Materne Thierry Florent
Kiehl Christopher
Harlan Robert D.
Rockhill Alvin T.
The Goodyear Tire & Rubber Company
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