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:
Oct. 04, 2016
Filed:
Jun. 14, 2012
Applicant:
Jyri Paulasaari, Espoo, FI;
Inventor:
Jyri Paulasaari, Espoo, FI;
Assignee:
Silecs Oy, Espoo, FI;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07F 7/18 (2006.01); C07F 7/08 (2006.01); C08G 77/04 (2006.01); C08G 77/12 (2006.01); C08G 77/14 (2006.01); C08G 77/00 (2006.01);
U.S. Cl.
CPC ...
C07F 7/188 (2013.01); C07F 7/0859 (2013.01); C07F 7/0874 (2013.01); C07F 7/0896 (2013.01); C07F 7/1808 (2013.01); C07F 7/1892 (2013.01); C08G 77/045 (2013.01); C08G 77/12 (2013.01); C08G 77/14 (2013.01); C08G 77/80 (2013.01);
Abstract
A method for preparation and polymerization of siloxane monomers of Formula I is presented. The synthesis includes the selective reaction between silanol containing unit and alkoxy containing units in the presence of basic catalyst. The siloxane monomers of the invention can be used for preparation of siloxane polymers with good flexibility and cracking threshold, and functional sites, useful for applications requiring low metal content in semiconductor industry.