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:
May. 26, 1992
Filed:
Feb. 28, 1990
Applicant:
Inventors:
Patrick Mullen, Mahtomedi, MN (US);
Frederick E Nobile, Depere, WI (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ; C09K / ; G02B / ;
U.S. Cl.
CPC ...
2522995 ; 25229901 ; 252582 ;
Abstract
A light modulating material including liquid crystalline materials dispersed within a polymeric material including a cross-linked isocyanate material. The isocyanate material preferably is acrylic polyisocyanate which when cross-linked, forms a complex urethane having the form: -urethane-acrylic-urethane-cross linking agent.