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:
Jun. 04, 1996
Filed:
Jun. 10, 1993
Applicant:
Inventors:
Noriaki Ohnishi, Osaka, JP;
Toshiyuki Hirai, Ichinomotocho, JP;
Nobuaki Yamada, Osaka, JP;
Shiuchi Kozaki, Ukyo, JP;
David Coates, Merley, GB;
Emma J Brown, Southborne, GB;
Bernhart Rieger, Muster-Altheim, DE;
Yukiomi Tanaka, Tsumada nishi, JP;
Assignees:
Merck Patent Gesellschaft mit beschrankter Haftung, Darmstadt, DE;
Sharp Corporation, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
428-1 ; 25229901 ; 25229964 ; 25229965 ; 25229966 ; 25229967 ;
Abstract
The present invention relates to a liquid crystal composite layer of the polymer dispersion type wherein a liquid crystal material comprising compounds of formulae (1) and (2) is dispersed in a matrix polymer; wherein formula (1) is: ##STR1## wherein A.sub.1 and A.sub.2 each represent independently a benzene ring, cyclohexane ring, pyrimidine ring or trans-1,3-dioxane ring;