Process for preparing hydrogenated nitrile rubbers

Details Process for preparing hydrogenated nitrile rubbers Process for preparing hydrogenated nitrile rubbers

2007-05-29

2010-02-23

Choi, Ling-Siu (Department: 1796)

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

Synthetic resins

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

C525S339000, C525S329300, C422S135000, C422S186250, C422S186140, C422S224000

Reexamination Certificate

active

07666950

ABSTRACT:
The present invention provides a novel process for preparing hydrogenated nitrile rubbers comprising subjecting nitrile rubbers in a spinning disk reactor to hydrogenation. The present process is less demanding with regard to its reaction conditions, like e.g. the hydrogen pressure to be applied, compared to known processes and significantly reduces the cost of the hydrogenation process and in particular the equipment cost.

REFERENCES:
patent: 1284488 (1918-11-01), Steward
patent: 3700637 (1972-10-01), Finch, Jr.
patent: 4464515 (1984-08-01), Rempel et al.
patent: 4503196 (1985-03-01), Rempel et al.
patent: 4581417 (1986-04-01), Buding et al.
patent: 4631315 (1986-12-01), Buding et al.
patent: 4746707 (1988-05-01), Fiedler et al.
patent: 4795788 (1989-01-01), Himmler et al.
patent: 4812528 (1989-03-01), Rempel et al.
patent: 4978771 (1990-12-01), Fiedler et al.
patent: 6309508 (2001-10-01), Lemme et al.
patent: 6482960 (2002-11-01), Brechtelsbauer et al.
patent: 6515153 (2003-02-01), Burns et al.
patent: 6596838 (2003-07-01), Pinery et al.
patent: 6858189 (2005-02-01), Ramshaw et al.
patent: 7032607 (2006-04-01), Burns
patent: 7041751 (2006-05-01), Jachuck et al.
patent: 7074353 (2006-07-01), Jachuck et al.
patent: 2003/0088035 (2003-05-01), Guerin et al.
patent: 2003/0180494 (2003-09-01), Lu
patent: 2004/0105795 (2004-06-01), Gough
patent: 25 39 132 (1987-04-01), None
patent: 2004/004888 (2004-01-01), None
patent: 2006/008510 (2006-01-01), None
patent: WO 2006/008510 (2006-01-01), None
patent: 2006/018622 (2006-02-01), None
Macromolecules 1987, 20, pp. 2362-2368; Mohammadi and Rempel; “Homogeneous Selective Catalytic Hydrogenation of C=C in Acrylonitrile-Butadiene Copolymer” American Chemical Society.
Rev. Macromol. Chem. Phys., C35(2), 239-285 (1995); McManus and Rempel; “Chemical Modification of Polymers: Catalytic Hydrogenation and Related Reactions”.
European Search Report from co-pending Application No. 07010189.4-1214/1864277 dated Oct. 12, 2009.

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