Bicyclo[2.2.1] heptane derivative
AssigneeIdemitsu Kosan Co., Ltd.
InventorsToshiyuki Tsubouchi, Yukio Yoshida, Motohisa Ido
Life of this patent
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Abstract
A bicyclo[2.2.1]heptane derivative represented by following general formula (1): wherein R1 and R2 each represent hydrogen atom or methyl group, and R3 represents methyl group or ethyl group. The derivative is suitable as a high viscosity hydrocarbon base material used for tackfiers for adhesives and process oils for rubber and resins.
Claims16
A composition comprising at least 81% of a bicyclo[2.2.1]heptane compound represented by the following general formula (1):
- wherein R1 and R2 each represent hydrogen atom or methyl group, and R3 represents methyl group or ethyl group.
A process for preparing a composition containing at least 81% of a bicyclo[2.2.1]heptane compound which compound has a boiling point ranging from 240 to 250° C. at 1.33 kPa, comprising:
- (a) preparing a trimer by trimerization of a material olefin selected from the group consisting of bicyclo[2.2.1]heptanes having a methyl group and a methylene group, bicyclo[2.2.1]heptanes having a methylene group, bicyclo[2.2.1]heptanes having an ethylidene group, bicyclo[2.2.1]hept-2-enes having methyl group, and bicyclo[2.2.1]hept-2-enes having an ethyl group;
- (b) hydrogenating the trimer;
- and
- (c) distilling the hydrogenation product of the trimer.
Dependencies are inferred from the claim text.