Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...
Reexamination Certificate
2006-05-23
2006-05-23
Egwim, Kelechi C. (Department: 1713)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Processes of preparing a desired or intentional composition...
C524S525000, C524S528000, C524S848000
Reexamination Certificate
active
07049356
ABSTRACT:
This invention relates to a perfectly or partially crosslinked olefinic thermoplastic elastomer composition which comprises 10 to 90 parts by weight of a crystalline polyolefin (a), 90 to 10 parts by weight of an olefin-based copolymer rubber (b) (the total amount of the components (a) and (b) being 100 parts by weight) and 3 to 100 parts by weight of a paraffinic mineral oil softening agent (c) having an evaporation loss of 0.4% by weight or less at a condition of 200° C., atmospheric pressure and 1 hour and having a kinetic viscosity (40° C.) of 50 to 250 cSt; an olefinic thermoplastic elastomer composition which is obtainable by subjecting a mixture including 40 to 85 parts by weight of an ethylene-based copolymer rubber (A), 60 to 15 parts by weight of an olefinic resin (B) and 45 parts by weight or less of a softening agent (C) [the total amount of the components (A), (B) and (C) being 100 parts by weight] to dynamic heat treatment in the presence of a crossliking agent and which has a gloss value of 80% or more and a haze value of 10% or less on glass plate when subjected to the fogging test at a condition of 100° C. and 3 hours according to the prescription of A method of DIN 75201; and a manufacturing method and use of the compositions.
REFERENCES:
patent: 4220579 (1980-09-01), Rinehart
patent: 4239862 (1980-12-01), Matthews et al.
patent: 4311628 (1982-01-01), Abdou-Sabet et al.
patent: 4728692 (1988-03-01), Sezaki et al.
patent: 4818785 (1989-04-01), Otawa et al.
patent: 5597867 (1997-01-01), Tsujimoto et al.
patent: 5902674 (1999-05-01), Makino et al.
patent: 196 39 865 (1997-04-01), None
patent: 0 275 702 (1988-07-01), None
patent: 0 286 409 (1988-10-01), None
patent: 0 371 743 (1990-06-01), None
patent: 0 770 645 (1997-05-01), None
patent: 1 033 226 (2000-09-01), None
patent: 2000302919 (2000-10-01), None
patent: A2000302919 (2000-10-01), None
Itoh Yuichi
Mizumoto Kunihiko
Uchiyama Akira
Yamaoka Hiroyasu
Birch & Stewart Kolasch & Birch, LLP
Egwim Kelechi C.
Mitsui Chemicals Inc.
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