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. 20, 1990
Filed:
Mar. 18, 1988
Klaus Bronstert, Carlsberg, DE;
BASA Aktiengesellschaft, Ludwigshafen, DE;
Abstract
Homopolymers, copolymers or block copolymers obtained from vinylaromatics and/or conjugated dienes and functionally modified at chain ends via amide groups with terminal acid groups or salts thereof, and hydrogenation products of these polymers, which contain salts of functional groups of the formula I, II, III, IV or V ##STR1## wherein N is nitrogen, R.sup.1 is alkyl or aryl, R.sup.3 is a 2-membered to 20-membered bridge in which at least the members adjacent to the nitrogen atoms consist of --C(R.sup.6, R.sup.7) radicals, where R.sup.6 and R.sup.7 are each hydrogen, alkyl, cycloalkyl or aryl, and the more remote members are not only --C(R.sup.6, R.sup.7) radicals but may furthermore be ether or N-alkyl- or N-arylimino groups, R.sup.2 is a divalent organic radical, R.sup.4, R.sup.5, R.sup.8 and R.sup.9 are each alkyl or aryl or together form a cyclic bridge, and X is COOH or SO.sub.3 H or their salts or complexes and a process for preparing the polymers and copolymers. The polymers and copolymers are used as toughening agents to modify polyurethanes, as a component of hot melt adhesives or as a lubricating oil component.