Method for hydrogenating polymers and products therefrom

Details Method for hydrogenating polymers and products therefrom Method for hydrogenating polymers and products therefrom

1993-03-15

1994-10-04

Lipman, Bernard

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

Synthetic resins

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

5253328, 5253329, 5253331, 5253332, 5253333, 525338, C08F 804

Patent

active

053527445

ABSTRACT:
This invention relates to a method for hydrogenation of poly(alkenyl aromatic) polymers or poly(alkenyl aromatic)/polydiene block copolymers that provides hydrogenated polymers with 99.5% or greater unsaturation and an MWD of less than about 3. Hydrogenated polymers and adhesives comprising the hydrogenated polymers and tackifier are also provided.

REFERENCES:
patent: 3062800 (1962-11-01), Dissen
patent: 3333024 (1967-07-01), Haefele
patent: 3431323 (1969-03-01), Jones
patent: 3629371 (1971-12-01), Winkler
patent: 3809687 (1974-05-01), Allison, Jr. et al.
patent: 4946899 (1990-08-01), Kennedy et al.
"Hydrogenated Linear Block Copolymers . . . " Mohajer and Wilkes, et al. Polymer, 1982, vol. 23, Sep., pp. 1523-1535.
Thermo Plastic Elastomers, A Comprehensive Review, ed. Legge, et al. Ch. 14, pp. 506-540, Hanser Publishers, N.Y. 1987.

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