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:
Dec. 08, 1987
Filed:
Nov. 07, 1985
Applicant:
Inventors:
Assignee:
Mitsubishi Paper Mills, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
264-47 ; 503215 ; 424462 ; 424497 ; 42721334 ; 42840222 ;
Abstract
A stable emulsion of microcapsules is obtained by polymerizing at least one water-soluble vinyl monomer in an aqueous solution of an oil-soluble vinyl monomer-maleic anhydride-maleic ester multipolymer to prepare a water-soluble resin, dispersing or emulsifying discrete fine particles of a hydrophobic material in an acidic aqueous solution of the water-soluble resin, adding an amino resin precursor separately prepared to the dispersion or emulsion, and heating the mixture.