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:
Apr. 21, 1992
Filed:
Aug. 16, 1990
Applicant:
Inventors:
Tadamitsu Hirata, Hirakata, JP;
Yoshihiko Nishimura, Toyonaka, JP;
Assignee:
Asahipen Corporation, Osaka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524423 ; 524434 ; 524436 ; 524437 ; 524469 ; 524569 ; 524501 ; 524556 ;
Abstract
A dispersion of a colored high-molecular weight particulate material is prepared by a) mixing a pigment with an aqueous emulsion of a resin to form a dispersion of the pigment within the emulsion; b) combining the dispersion with particles of polyvinyl chloride containing a plasticizer to form a mixture; and c) adding a metal salt to the mixture to cause the resin to coagulate onto the particles of the polyvinyl chloride. A film comprising the resin and the pigment is formed on the particles of the polyvinyl chloride.