Process for hydrogenating aromatic polymers

Details Process for hydrogenating aromatic polymers Process for hydrogenating aromatic polymers

Filed on

1996-04-03

Date issued

1997-08-05

Examiner

Lipman, Bernard

Patent Class

Catalyst, solid sorbent, or support therefor: product or process

SubClass

Catalyst or precursor therefor

SubSubClass

Silicon containing or process of making

Other Related Categories

502258, 502259, 502260, 502261, 502262, B01J 2108

Type

Patent

Status

active

Patent number

056542534

Description

ABSTRACT:
The present invention is a process of hydrogenating high molecular weight aromatic polymers comprising hydrogenating the high molecular weight aromatic polymer in the presence of a silica supported metal hydrogenation catalyst, characterized in that the silica has a pore size distribution such that at least 98 percent of the pore volume is defined by pores having diameter of greater than 600 angstroms.

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patent: 5352744 (1994-10-01), Bates et al.
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Heterogeneous Catalytic Hydrogenation of Poly(stryrene), Macromolecules, 26, 4122-4127 (1993).
Applied Heterogeneous Catalysis, Institut Francais du Petrole Publications, pp. 75-123 (1987).
Successful Design of Catalysts, Studies in Surface Science and Catalysis, V. 44, pp. 146-158(1989).
Structure and Properties of Poly(Vinyl Cyclohexane), Polymer Letters, V. 7, pp. 427-435 (1969).
Conformational Asymmetry in Poly(vinylcyclohexane) Containing Diblock Copolymers, JACS, V. 27, pp. 3611-3618 (1994).
Synthesis and Characterization of Poly(vinyclcyclohexane) Derivatives, J. Poly. Sci, Part B Polym. Phys. V. 33, pp. 1527-1536 (1995).

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