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:
Mar. 15, 2016
Filed:
Jun. 04, 2015
Shin-etsu Chemical Co., Ltd., Tokyo, JP;
Muneo Kudo, Annaka, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
The purpose is to provide a silicone compound which is well compatible with polymerizable silicone monomers and other polymerizable monomers to provide a polymer having high oxygen permeability, excellent hydrophilicity and anti-staining property, excellent dimension stability, and enough durability of mechanical strength not to deteriorate in a phosphate buffer solution. The other purpose is to provide a silicone compound having a high blocked terminal ratio and a high ratio of one specific structure and a method for preparing the silicone compound. The invention provides a compound represented by the following formula (1). Further, the invention provides a method for preparing the compound, use of the compound as an ophthalmic monomer, a polymer having repeating units derived from the aforesaid compound and an ophthalmic device composed of the polymer.