Selected cyclohexane -1,3-and -1,4-dicarboxylic acid esters

Details Selected cyclohexane -1,3-and -1,4-dicarboxylic acid esters Selected cyclohexane -1,3-and -1,4-dicarboxylic acid esters

2007-04-24

2007-04-24

Zucker, Paul A. (Department: 1621)

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C560S127000

Reexamination Certificate

active

09959380

ABSTRACT:
Selected cyclohexane-1,3- and -1,4-dicarboxylic acid esters are described, as is their use as plasticizers in plastics and their preparation by hydrogenation of the corresponding isophthalic or terephthalic esters by bringing one or more of these isophthalic or terephthalic esters into contact with a hydrogen-containing gas in the presence of a catalyst which comprises, as active metal, at least one metal of the 8th transition group of the Periodic Table on its own or together with at least one metal of the 1st or 7th transition group of the Periodic Table, applied to a support, which comprises using a support having micropores.

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CA 57: 12711a : Matsuda et al, Cyclohexanes carboxylates for use as Plasticizers.
Matsuda et al, as disclosed in CA 57: 12711 (1959).
Matsuda et al, as disclosed in CA 57: 12711 (1959).
CA 127:515741, Kawahara et al citation for WO 9721792 cited above.

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