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. 04, 1978
Filed:
May. 20, 1977
Applicant:
Inventor:
Nathan L Turner, Houston, TX (US);
Assignee:
Denka Chemical Corporation, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
528486 ; 260 4247 ; 528487 ;
Abstract
An improvement in the process of producing free-flowing polychloroprene powder wherein the spent coagulant solution is removed prior to adjusting the pH of the coagulated latex with a base, thereby reducing the amount of base required and wherein it has been found that an emulsifer which is stable in solutions, having a pH of less than 4.5, such as an alkali or alkaline earth of the condensate of formaldehyde and naphthalene sulfonic acid, added to the latex before or after the coagulant solution is mixed therewith, prevents agglomeration of the coagulated latex when the base solution is added.