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. 21, 1981
Filed:
Mar. 28, 1980
Applicant:
Inventors:
Sundar L Aggarwal, Akron, OH (US);
Ivan G Hargis, Tallmadge, OH (US);
Russell A Livigni, Akron, OH (US);
Assignee:
The General Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
260 / ; 260 / ; 260 / ; 525385 ; 525334 ;
Abstract
A block copolymer of polyalkalene oxide and a polydiene is made by the lithium catalyzed anionic polymerization of a diene followed by polymerization of an alkalene oxide using a double metal cyanide catalyst. The dispersant can be used in forming a crude oil methanol dispersion for transport through unheated pipelines from the North Slope oil fields to Prudhoe Bay.
Aggarwal, Sundar. (1981). Polydiene polyalkylene oxide block copolymers and their use as alcohol (U.S. Patent No. 4279798). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4279798
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile