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. 11, 2016
Filed:
Nov. 02, 2010
Abdul Rashid, Bellshill, GB;
Roderick William Jonathan Bowers, Bellshill, GB;
Wade Tipton, Bellshill, GB;
Neil Bonnette Graham, Bellshill, GB;
Abdul Rashid, Bellshill, GB;
Roderick William Jonathan Bowers, Bellshill, GB;
Wade Tipton, Bellshill, GB;
Neil Bonnette Graham, Bellshill, GB;
OCUTEC LIMITED, Bellshill, GB;
Abstract
The present invention relates to a polyurethane polymer prepared from a mixture comprising: (a) at least one polyol of formula (I), wherein at least three of X, X, X, Xand Xare each independently an OH-terminated polyoxyalkylene group, and the remainder of X, X, X. Xand Xare each independently H or absent, and Z is a central linking unit; (b) at least one di- or poly-isocyanate; and (c) optionally at least one OH-terminated chain extender. Further aspects of the invention relate to a process for preparing a polyurethane, and to a process for preparing a contact lens.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile