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:
Nov. 10, 2015
Filed:
Dec. 26, 2012
Toagosei Co., Ltd., Minato-ku, JP;
Kinuko Ogura, Nagoya, JP;
Akinori Kitamura, Nagoya, JP;
TOAGOSEI CO., LTD., Minato-ku, JP;
Abstract
The present invention is a method for producing a polysiloxane represented by formula (1), which includes a condensation step wherein a hydrolysis/polycondenzation of a starting material monomer that forms a constituent unit is carried out in a reaction solvent that contains at least one alcohol that is selected from among secondary alcohols having 4-6 carbon atoms and tertiary alcohols having 4-6 carbon atoms. The method for producing a polysiloxane of the present invention suppresses problems such as gelation that occurs during the production, and increase in the molecular weight or gelation that occurs during storage after the production or the like.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile