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:
Jan. 08, 1980
Filed:
Jun. 14, 1978
Applicant:
Inventors:
William J Benton, Pittsburgh, PA (US);
Joseph R Quigley, Pittsburgh, PA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
260 / ; 252408 ; 260 / ; 264236 ; 2642102 ; 2642106 ; 264211 ; 428-1 ;
Abstract
Polyurethane elastomer films containing dispersed discrete aggregates of liquid crystals can be produced with improved color response. The liquid crystal aggregates are dispersed in uncured polyurethane elastomer precursors which are cured as a film. After the curing process has commenced but before the curing process has been completed, the partially cured film is subjected to shear stresses to change the shape of the partially cured material which thereafter is allowed to complete the cure in the altered shape.