Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Cellular products or processes of preparing a cellular...
Reexamination Certificate
2005-01-11
2005-01-11
Mullis, Jeffrey (Department: 1711)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Cellular products or processes of preparing a cellular...
C521S094000, C521S095000, C521S134000, C521S139000, C521S140000
Reexamination Certificate
active
06841582
ABSTRACT:
The present invention relates to a thermoplastic elastomer composition having a three-dimensional network structure which is not formed by a chemical crosslinking and having an excellent elasticity recovery and flexibility, a foam having a highly closed cell, an uniform cell shape, an excellent elasticity recovery, flexibility and appearance, and a process for producing the same. A thermoplastic elastomer of the invention is obtained by mixing in a predetermined ratio an EPDM (1), a crystalline polyethylenic resin (2) and a block copolymer (3) having a crystalline ethylenic polymeric block and a block which is more compatible with said EPDM than with said crystalline polyethylenic resin together with an anti-aging agent followed by kneading in a pressurized kneader. A foam of the invention is obtained by adding 1 part by mass of a wetting agent to 100 parts by mass of the thermoplastic elastomer composition described above together with a foaming agent, agitating and then performing an extrusion foaming.
REFERENCES:
patent: 4366464 (1982-12-01), Miyamoto et al.
patent: 5216074 (1993-06-01), Imai et al.
patent: 5543438 (1996-08-01), Shibayama et al.
patent: 5596042 (1997-01-01), Itoh et al.
patent: 0 040 934 (1981-12-01), None
patent: 0 503 220 (1992-09-01), None
patent: 0 875 526 (1998-11-01), None
patent: 2-43771 (1990-10-01), None
patent: 06-073222 (1994-03-01), None
patent: 8-27330 (1996-01-01), None
patent: 08027330 (1996-01-01), None
patent: 8-319451 (1996-12-01), None
patent: 2000-44711 (2000-02-01), None
Mizuno et al., electronic translation of JP 08027330, Jan. 1996.*
Mizuno et al., CAPLUS AN 1996:226111, Abstracting JP 08027330, Jan. 1996.*
Y. Mizuno, et al., Database Online! Chemical Abstracts Service, pp. 1-3, AN 128:62679, XP-002230538, “Flexible Olefin-Based Thermoplastic Elastomer Compositions”, Nov. 25, 1997.
Kanae Kentarou
Maeda Minoru
Morikawa Akihiko
Nakanishi Hideo
JSR Corporation
Mullis Jeffrey
LandOfFree
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