Composite foam molded article, process for production thereof co

Details Composite foam molded article, process for production thereof co Composite foam molded article, process for production thereof co

1996-01-31

1998-04-28

McCamish, Marion E.

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Composite having voids in a component

4283188, 4283197, 4283199, 521 51, 521134, 521140, B32B 326, B32B 2732

Patent

active

057442312

ABSTRACT:
An integrally molded composite article comprised of (I) a nonfoam layer formed from a thermoplastic elastomer powder composition (A) and (II) a foam layer formed from a foamable composition comprised of (i)(B) a thermoplastic synthetic resin powder, and (C) a heat decomposable foaming agent or (ii)(B) a thermoplastic synthetic resin powder, (C) a heat decomposable foaming agent and (D) a liquid coating agent, wherein the thermoplastic elastomer powder (A) is comprised of a composition of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin or a thermoplastic elastomer powder comprised of a partially cross-linked composition of an ethylene-.alpha.-olefin copolymer rubber and a polyolefin resin, the thermoplastic elastomer powder having a complex dynamic viscosity .eta.*(1) at 250.degree. C. and a frequency of 1 radian/sec of not more than 1.5.times.10.sup.5 poise and having a Newtonian viscosity index n, calculated by the following formula using the above-mentioned complex dynamic viscosity .eta.*(1) and the complex dynamic viscosity .eta.*(100) at a frequency of 100 radians/sec, of not more than 0.67:

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patent: 5075162 (1991-12-01), Okubo et al.
patent: 5532055 (1996-07-01), Igarashi et al.
Abstract of Japan, JP2-90576, Nissan Chem. Inc. K.K., Jul. 29, 1997.
Abstract of Japan, JP2-274512, Kanto Seiki K.K., Nov. 8, 1990.
Abstract of Japan, JP60-101014, Mitsubishi Monsanto Kasei Biniru K.K., Jun. 5, 1985.
English Abstract, Japanese laid open Appln. No. 2-57309 Feb. 1990.
English Abstract, Japanese laid open Appln. No. 2-57310 Feb. 1990.
English Abstract, Japanese laid open Appln. No. 3-177477 Aug. 1991.

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