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. 13, 1986
Filed:
Sep. 17, 1984
Applicant:
Inventor:
Koichiro Oka, Ibaraki, JP;
Assignee:
Toray Industries, Inc., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; C08L / ; D06P / ;
U.S. Cl.
CPC ...
4274431 ; 523414 ; 523420 ; 528 88 ; 528 93 ; 528111 ; 528118 ; 528123 ; 528124 ; 8506 ;
Abstract
Spherical particles of cured epoxy resin having an average size not larger than 50 .mu.m can be produced by adding a water-soluble amine curing agent to an emulsion of uncured epoxy resin. It is possible to prepare spherical particles incorporating a UV absorber or inorganic particles, to dye these particles with an acid dye, and to subject them to electroless plating. In addition, after-treatment of the cured particles enhances their heat resistance and destroys the epoxide groups left unreacted inside each particle. These particles may be used as an ingredient of cosmetic and coating compositions, as a toner of electrostatic copiers, and for other applications.