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. 23, 1987
Filed:
Oct. 30, 1985
Applicant:
Inventors:
Assignee:
Ohkawara Kokohki Co., Ltd., Yokohama, JP;
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; B32B / ;
U.S. Cl.
CPC ...
42840224 ; 264-43 ; 264-44 ; 426 72 ; 426 92 ; 426805 ; 42721331 ; 424450 ; 424498 ;
Abstract
This microcapsules are mono-core type microcapsules with particle size from 5 .mu.m to 5 mm on which waxes are coated as the layer on the surface of the particles and/or penetrated to the inside of the particles, in which said wax coating is prepared by once melting the wax particles over the surface of the core particles and then re-solidifying them. The core material of the microcapsule undergoes less thermal degradation and can be formed with a dense and thin membrane profiling the surface layer thereof with a use of lesser amount of waxes.