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.
Patent No.:
Date of Patent:
Jul. 18, 1995
Filed:
Mar. 29, 1993
Applicant:
Inventors:
Satoshi Fujimoto, Hiroshima, JP;
Masafumi Sugiyama, Hiroshima, JP;
Assignee:
Nishikawa Rubber Co., Ltd., Hiroshima, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08J / ; C08L / ;
U.S. Cl.
CPC ...
521134 ; 521 51 ; 521 59 ; 521 70 ; 521 71 ; 521 72 ; 521 75 ; 521138 ; 521140 ; 521142 ; 424400 ; 424401 ; D28 / ; D28 / ;
Abstract
A method for making a cellular rubber is described, in which water is added to a high water absorption resin, followed by allowing the resulting mixture to stand and form a hydrous gel. The hydrous gel, with or without a foaming agent, is added to a rubber compound and subjected to foaming under conditions sufficient for vulcanization thereby obtaining a cellular rubber having a closed cell structure. Cosmetic puffs using the cellular rubber are also described.