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:
Sep. 20, 1988
Filed:
May. 12, 1986
Applicant:
Inventors:
Ichiro Shibanai, Tokyo, JP;
Kenji Nakamura, Osaka, JP;
Assignee:
Japan Liquid Crystal Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09B / ;
U.S. Cl.
CPC ...
8526 ; 8524 ;
Abstract
A process for the preparation of a densely colored pellet for addition to a synthetic resin involves converting a dye into a cyclodextrin clathrate compound thereof, powdering the clathrate compound by drying, mixing the powder with a synthetic resin material in a molten state and pelletizing the mixture. The obtained pellet can be uniformly dispersed in a synthetic resin material to color the resin material without causing bleeding of the dye or fading of the product.