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. 01, 1977
Filed:
Jul. 17, 1975
Applicant:
Inventors:
Ronald K Crossland, Houston, TX (US);
Jaroslav G Balas, Houston, TX (US);
Arthur R Bean, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
2608 / ;
Abstract
An improved process for the preparation of branched polymers is provided wherein the individual branches may be selected at will comprising the formation of an anionic polymer of a polymerizable monomer, coupling with a polyvinyl aromatic hydrocarbon and block polymerizing this coupled product with an anionically active polymerizable monomer.
Crossland, Ronald. (1977). Block polymers and their preparation (U.S. Patent No. 4010226). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4010226
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile