The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 04, 1990

Filed:

Oct. 14, 1988
Applicant:
Inventors:

Tetsuo Kita, Saitama, JP;

Masahiro Miyazaki, Tokyo, JP;

Tsutomu Saka, Saitama, JP;

Minoru Maeda, Saitama, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264 452 ; 264 451 ; 264 466 ; 264 468 ;
Abstract

An improved process for producing a laminated resin foam composed of two resin foam layers of different characteristic properties wherein the layers are integrally bonded together. A first foamable resin liquid for forming flexible foam is poured into a first space in a foam processing mold on one side of a barrier projecting from the wall of the mold and pouring a second foamable resin liquid for forming a foam less flexible than the first flexible foam into a second space in said foam processing mold on the other side of said barrier. The two foamable resin liquids foam beyond the barrier into contact with each other to form the two laminated foam layers. One improvement in the process includes wetting a substantial portion of the mold cavity with the first foamable resin liquid. Various shapes of molds and barriers will produce different shapes and characteristics of the resultant foam pad, such as for a car seat.


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