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:
Nov. 28, 2000
Filed:
Jul. 28, 1998
Applicant:
Inventors:
Robert James Letchford, Cherryville, NC (US);
James Anthony Schwindeman, Lincolnton, NC (US);
Assignee:
FMC Corporation, Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ; C08C / ;
U.S. Cl.
CPC ...
525314 ; 525105 ; 525131 ; 525177 ; 525184 ; 525272 ; 5253591 ; 5253593 ; 526178 ; 526180 ; 526181 ;
Abstract
This invention provides novel protected, multi-functionalized multi-arm polymers, their optionally hydrogenated analogues and optionally deprotected analogues thereof, and processes for making these compounds. In the invention, monomers are polymerized using a protected functionalized initiator to form living polymer anions, the living anions coupled to form multi-arm polymers, additional monomer added to form additional polymer arms, and the multi-arm polymer functionalized using electrophiles.