Transparent materials consisting of hydrogenated products of rin

Details Transparent materials consisting of hydrogenated products of rin Transparent materials consisting of hydrogenated products of rin

1997-12-16

1999-11-23

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...

525338, 525339, C08F 804

Patent

active

059902469

ABSTRACT:
Hydrogenation products of copolymers prepared by ring-opening metathetical polymerisation of a cyano-substituted norbornene and at least one multicyclic olefin, which contains 95.5 to 5 wt. % of the cyano-substituted norbornene incorporated in the polymer and in which at least 60% of the initially present olefinic double bonds have been saturated by hydrogenation and the preparation of the new hydrogenation products by polymerisation in the presence of a catalyst and optionally a chain transfer agent at -20.degree. C. to 100.degree. C. at atmospheric pressure in an inert solvent, followed by hydrogenation in the presence of a homogeneous or heterogeneous hydrogenation catalyst at 0.degree. C. to 200.degree. C. under a hydrogen pressure of 2 to 200 bar in an inert solvent.

REFERENCES:
Derwent Abstract, JP 04 277 519n Oct., 1992.
Patent Abstract of Japan, vol. 009, No. 180, Jul. 25, 1985, Publ. No. 02103226, Apr. 16, 1990.
Patent Abstract of Japan, vol. 014, No. 306, Jul. 3, 1990, Publ. No. 60049051, Mar. 18, 1985.
Patent Abstract of Japan, vol. 104, no. 106, Feb. 27, 1990, Publ. No. 01311120, Dec. 15, 1998.

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