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:
Mar. 10, 1981
Filed:
Jan. 07, 1980
Applicant:
Inventors:
John R Hurlock, Hickory Hills, IL (US);
Louis A Goretta, Naperville, IL (US);
Assignee:
Nalco Chemical Company, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526201 ; 525274 ; 525288 ;
Abstract
Discrete particles of sodium polyacrylate of high molecular weight and in which the majority of the particle size is in the range of not less than 0.5 mm. nor more than 1.0 mm. diameter are achieved, in an economy of production, by suspension polymerization in stages of 40.degree. C. (2 hours), 50.degree. C. (2 hours) and 60.degree. C. (2 hours) in the presence of a protective colloid.
Hurlock, John. (1981). Discrete bead polymer process (U.S. Patent No. 4255545). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4255545
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile