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:
Oct. 26, 1976
Filed:
Apr. 28, 1975
Applicant:
Inventor:
Nathan L Turner, Houston, TX (US);
Assignee:
Petro-Tex Chemical Corporation, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
528493 ; 260 / ; 260 / ; 260 4247 ; 526 82 ; 526 88 ; 526234 ; 526236 ; 526225 ; 526296 ; 528495 ; 528502 ; 528503 ; 528487 ; 528488 ;
Abstract
Free flowing polychloroprene powder can be produced from standard latexes by adding 1 - 10% of a salt of an alkyl sulfate, such as sodium lauryl sulfate to an acidified latex and precipitating the rubber in a coagulating solution, separating the particles and drying them. It was also found that the precipitated polychloroprene particles could be made stable in alcohols and ketone (which affords a simpler drying procedure) by adjusting the pH of the mixture of latex and coagulating solution to about 7.25.