Polymers modified with terminal acid groups and the preparation

Details Polymers modified with terminal acid groups and the preparation Polymers modified with terminal acid groups and the preparation

1988-03-18

1990-11-20

Bleutge, John C.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525375, 525256, 525374, 525379, 525382, C08F26704

Patent

active

049720236

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.

REFERENCES:
patent: 3251812 (1966-05-01), Hsieh
patent: 4465809 (1984-08-01), Smith
patent: 4647625 (1987-03-01), Aonuma et al.
patent: 4670173 (1987-06-01), Hayashi et al.
patent: 4753991 (1988-06-01), Bronstert
patent: 4816520 (1989-03-01), Bronstert

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