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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.:

US 8865029 B1

PDFFull Text
Date of Patent:
Oct. 21, 2014

Filed:

Jun. 05, 2009

Photochromic polymer and composition comprising photochromic polymer

Applicants:

Richard Alexander Evans, Glen Waverley, AU;

Nino Malic, Ferntree Gully, AU;

Mark Robert York, Frankston South, AU;

Abdelselam Saeed Ali, Endeavour Hills, AU;

Jonathan Andrew Campbell, Magill, AU;

Inventors:

Richard Alexander Evans, Glen Waverley, AU;

Nino Malic, Ferntree Gully, AU;

Mark Robert York, Frankston South, AU;

Abdelselam Saeed Ali, Endeavour Hills, AU;

Jonathan Andrew Campbell, Magill, AU;

Assignee:

Vivimed Labs Europe Ltd., Huddersfield, GB;

Attorney:

LeClairRyan, a Professional Corporation

Primary Examiner:

Monique Peets

Int. Cl.
CPC ...
F21V 9/00 (2006.01); G02B 5/23 (2006.01); C08L 69/00 (2006.01); C08G 77/26 (2006.01); C08L 31/04 (2006.01); C08G 77/388 (2006.01); C08G 77/46 (2006.01); C08L 75/04 (2006.01); C08G 77/38 (2006.01); C08L 29/04 (2006.01); C08L 33/08 (2006.01); C08L 67/02 (2006.01); C08L 25/12 (2006.01); C08G 77/14 (2006.01); C08L 25/06 (2006.01); C08L 27/08 (2006.01); C08L 29/14 (2006.01); C08L 27/06 (2006.01); C08L 83/06 (2006.01); C08L 83/08 (2006.01); C08L 83/04 (2006.01);
U.S. Cl.
CPC ...
C08G 77/38 (2013.01); C08L 69/00 (2013.01); C08G 77/26 (2013.01); C08L 31/04 (2013.01); C08L 83/06 (2013.01); C08G 77/388 (2013.01); C08G 77/46 (2013.01); C08L 75/04 (2013.01); C08L 29/04 (2013.01); C08L 33/08 (2013.01); C08L 67/02 (2013.01); C08L 25/12 (2013.01); C08G 77/14 (2013.01); C08L 25/06 (2013.01); C08L 27/08 (2013.01); C08L 29/14 (2013.01); C08L 83/08 (2013.01); C08L 27/06 (2013.01); C08L 83/04 (2013.01);
Abstract

A photochromic polymer comprising at least one siloxane oligomer and at least two photochromic groups covalently linked to one or both terminuses of the siloxane oligomer and compositions containing photochromic siloxane polymers with narrow polydispersity. The photochromic polymer enhances switching speed in rigid host polymers.

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