Process for hydrotreating resins to lighten color

Details Process for hydrotreating resins to lighten color Process for hydrotreating resins to lighten color

1995-05-05

1996-02-13

Schofer, Joseph L.

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

Synthetic resins

Treating polymer containing material or treating a solid...

528485, 528487, 528490, C08F 624

Patent

active

054912148

ABSTRACT:
The color of hydrocarbon resins having carbon-carbon double bonds and containing color bodies is lightened by a hydrotreating process comprising contacting a resin having a weight average molecular weight Mw of 250-10,000 with hydrogen in the presence of a catalyst that promotes the hydrogenation of the color bodies without substantially changing the content of carbon-carbon double bonds in the resin. The preferred catalysts are copper chromite and copper/zinc.

REFERENCES:
patent: 2349210 (1944-05-01), Traylor
patent: 2793986 (1957-05-01), Lanning
patent: 2819289 (1958-01-01), Luben
patent: 2963467 (1960-12-01), Small
patent: 3029121 (1962-04-01), Collins
patent: 3100808 (1963-08-01), Dyer
patent: 3331824 (1967-07-01), Folzenlogen
patent: 3442877 (1969-05-01), Moritz et al.
patent: 3484421 (1969-12-01), Pine et al.
patent: 3882049 (1975-05-01), Bertolacini et al.
patent: 4206300 (1980-06-01), Talsma et al.
patent: 4897175 (1990-01-01), Bricker et al.
patent: 4992157 (1991-02-01), Bricker et al.
patent: 5077386 (1991-12-01), Teng et al.
patent: 5171793 (1992-12-01), Johnson et al.
patent: 5292864 (1994-03-01), Wood et al.
Chemical Abstracts, vol. 86, No. 4; Apr. 4, 1977; Abstract No. 90940j, "Hydrogenating Hydrocarbon Resins".

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