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:
Feb. 05, 1991
Filed:
Apr. 17, 1990
Applicant:
Inventors:
Koji Shimizu, Ichihara, JP;
Mitsuo Hamada, Kisarazu, JP;
Assignee:
Dow Corning Toray Silicone Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524475 ; 524490 ; 524491 ; 524588 ; 524860 ; 525100 ; 525101 ; 525104 ; 525105 ; 525106 ; 525431 ; 525446 ; 525452 ; 525464 ;
Abstract
This invention provides cured silicone rubber or gel particles exhibiting an average size of from 0.1 to 20,000 micrometers and containing from 0.5 to 70 weight percent, based on the weight of the particle, of entrapped mineral oil. When the particles are incorporated into a liquid or solid matrix material the oil is released from the particles into the matrix at a controlled rate and serves as a lubricating agent.