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:
Aug. 30, 2016
Filed:
Sep. 10, 2013
Ocutec Ltd., Bellshill, GB;
Abdul Rashid, Bellshill, GB;
John Fraser, Bellshill, GB;
Gordon Honeyman, Bellshill, GB;
Mussarrat Mohammed, Bellshill, GB;
OCUTEC LIMITED, Bellshill, GB;
Abstract
There is provided a polyurethane xerogel prepared from a mixture comprising: (a) at least one isocyanate, (b) at least one silicone containing compound of formula J: wherein at least one group represents a hydrocarbyl group and p represents an integer of from 1 to 40, or at least one Rgroup represents a hydrocarbyl group and q represents an integer of from 1 to 40; and at least one Rgroup represents a hydrocarbyl group and w represents an integer of from 1 to 40, or at least one Rgroup represents a hydrocarbyl group and y represents an integer of from 1 to 40; (c) optionally one or more additional components; wherein the isocyanate and silicone containing compound are reacted under substantially anhydrous conditions. There is also provided a contact lens formed from the polyurethane xerogel.