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:
Nov. 12, 1975
Applicant:
Inventors:
Bela Kalman Mikofalvy, Avon Lake, OH (US);
James Wilson Turner, Bay Village, OH (US);
Assignee:
The B. F. Goodrich Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08F / ;
U.S. Cl.
CPC ...
526 81 ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 260 / ; 526216 ; 526225 ; 526229 ; 5263442 ;
Abstract
At least one vinylidene halide monomer is polymerized in an aqueous emulsion medium in admixture with ammonium persulfate and at least one ammoniated anionic emulsifier, preferably also together with hydrogen peroxide. The polymerization process is maintained at a pH of at least about 8.5 using ammonium hydroxide. The polymerization process is conducted in the substantial absence of alkali metal ions. Polymerization is both rapid and linear. The resulting polymers have excellent heat stability and water whitening resistance.