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:
Apr. 17, 1979
Filed:
Sep. 16, 1977
Applicant:
Inventor:
Herbert Schlueter, Marl, DE;
Assignee:
Chemische Werke Huels Aktiengesellschaft, Marl, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
260 / ; 260 / ;
Abstract
A process for the production of synthetic rubber latices having a high solids content and a low viscosity by low-temperature redox emulsion polymerization with subsequent agglomeration of the latex particles with oxidized polyethylene oxides, comprises conducting the redox emulsion polymerization in a system wherein the ratio of monomers to water is 0.85 to 1.25; the amount of emulsifier is 2.0 to 4.0 parts by weight per 100 parts by weight of monomers; the alkali metal salt concentration in the aqueous phase is 35-70 mmol./l; and the average rate of conversion of monomers is 8% per hour.