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:
Nov. 05, 1996
Filed:
Sep. 27, 1994
Applicant:
Inventors:
Assignees:
Dainichiseika Color & Chemical Mfg. Co., Ltd., Tokyo, JP;
Ukima Colour & Chemicals Mfg, Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ; B32B / ;
U.S. Cl.
CPC ...
428403 ; 428407 ; 4284231 ; 4284233 ; 4284242 ; 524589 ; 524590 ; 524839 ; 524904 ; 525458 ; 525902 ; 528 49 ; 528 53 ; 528 59 ; 528 61 ; 528 67 ; 528 68 ; 528 75 ; 528902 ; 521137 ;
Abstract
Fine polyurethane particles or fine polyurethane gel particles, which have been surface-covered with colloidal polyurea particles, are provided. They are produced by emulsion polymerization of a polyisocyanate compound and an active-hydrogen-containing compound in an inert liquid while using colloidal polyurea particles as an emulsifier.