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:
Feb. 20, 1996
Filed:
Jan. 20, 1995
Applicant:
Inventor:
Nicholas M Irving, Mixco, GT;
Assignees:
Lifesource International, Ltd., Middleton, RI (US);
Jojani Inc., Newport, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ;
U.S. Cl.
CPC ...
528230 ; 528102 ; 528107 ; 528108 ; 528109 ; 528119 ; 528120 ; 528121 ; 528124 ; 528125 ; 528128 ; 528129 ; 528162 ; 528220 ; 528228 ; 528244 ; 528272 ; 528287 ; 528288 ; 528290 ; 528293 ; 525400 ; 525491 ; 525492 ; 525495 ;
Abstract
Novel polymers of general formula: ##STR1## wherein R is an alkyl or aryl group that contains an active hydrogen atom (as determined by the Zerewitinoff test); A is a spacing group having at least one carbon atom; B is a spacing group having at least two carbon atoms; and R and R' are alkyl or aryl groups. The polymer is synthesized via the Mannich pathway, involving formation of an imine intermediate.