High service temperature adhesives and sealants made with highly

Details High service temperature adhesives and sealants made with highly High service temperature adhesives and sealants made with highly

1994-06-21

2000-09-05

Nelson, Peter A.

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

Synthetic resins

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

525 98, 525285, C08L 5100

Patent

active

H00018627

ABSTRACT:
The present invention provides high service temperature sealant and adhesive compositions which contain a functionalized selectively hydrogenated block copolymer of a vinyl aromatic hydrocarbon and a conjugated diene to which has been grafted at least 4% by weight of an acid compound or its derivative wherein substantially all of the acid compound or its derivative is grafted to the block copolymer in the conjugated diene blocks. The present invention also contemplates a stable emulsion comprising the above polymer, water and less than 1 part per 100 of the emulsion of a surfactant.

REFERENCES:
patent: H000758 (1990-04-01), Chin
patent: 4292414 (1981-09-01), Saito et al.
patent: 4578429 (1986-03-01), Gergen et al.
patent: 4927889 (1990-05-01), Shiraki et al.
patent: 4994508 (1991-02-01), Shiraki et al.
S. H. Dillman and A. Sanders, Maleated Block Copolymers in Hot Melt Adhesives and Sealants, TAPPI Hot Melt Symposium, Atlanta, Ga., May 1989.
Encyclopedia of Polymer Science and Engineering J. Wiley & Sons, New York, 1987, V 7 pp. 808-810.

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