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:
Jun. 01, 1976
Filed:
May. 30, 1974
Taichiro Akiyama, Shinjuku, Tokyo, JA;
Other;
Abstract
Granular porous silicone rubbers suitable to form articles to be embedded in human bodies or to be used to make up lost portions thereof are prepared by forming a composition containing a siloxnediole composition expressed by a formula ##EQU1## where R respectively represents a methyl radical, a phenyl radical or a vinyl radical and n is an integer of from 500 to 5,000, at least 0.5 % by weight based on the weight of the compound of formula (1) of a siloxanediol hydride compound expressed by a formula ##EQU2## where R' respectively represents a hydrogen radical or a methyl radical but at least one of R' radicals is a hydrogen radical, and n is an integer of from 2 to 1,000, a vulcanization catalyst and an emulsifying agent. The composition is then dispersed in water and the resulting emulsion is vulcanized while it is stirred thereby forming the granules of porous silicones.