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:
Oct. 04, 1983
Filed:
Oct. 29, 1982
Applicant:
Inventors:
Assignee:
Ceskoslovenska akademie ved, Liberec, CS;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08J / ;
U.S. Cl.
CPC ...
521 56 ; 521142 ; 521146 ; 521149 ; 525326 ; 525329 ; 525336 ; 525374 ; 525382 ; 525386 ; 525375 ; 5253282 ; 536 20 ; 536 30 ; 536102 ; 5253288 ; 5253283 ;
Abstract
Polymeric polydonor complexons having more than six sites in a structural unit are described. The complexons are of the formulae: ##STR1## wherein P is a linear or three-dimensional polymeric skeleton, x is oxygen or an ##STR2## group wherein R is hydrogen, an alkyl group of 1-6 carbon atoms, a phenyl group or a substituted phenyl group. The described complexons are obtained by reaction of a polymeric compound of the formula P --XH wherein P and X are as defined above with a dianhydride of the corresponding complexon in the presence of a tertiary amine and, optionally, an inert solvent.