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:
Jul. 27, 1993
Filed:
Sep. 30, 1992
Kouitu Kitazawa, Kawasaki, JP;
Kouichi Ohrui, Kawasaki, JP;
Nippon Zeon Co., Ltd., Tokyo, JP;
Abstract
A vinyl chloride resin plastisol can be prepared without the shearing action mixing conventionally required for mixing a resin and plasticizer, merely by immersing in a conventional plasticizer, aggregates in the form of a dry power and having an average diameter of 80 to 700 .mu.m of vinyl chloride resin particles; using a spray drying apparatus to form aggregates having an average diameter in the range from 80 to 700 .mu.m or by adding an organic fluid which is barely soluble in water and does not dissolve or swell the vinyl chloride resin to the aqueous dispersion of the vinyl chloride particles, followed by drying the aggregates thus formed at a temperature of 70.degree. C.or below.