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US 12,180,389 B2Granted
Tricyclodecane dimethanol composition and preparation method of the same
AssigneeSK Chemicals Co., Ltd.
InventorsHee Il Chae, Ju-Sik Kang, Jeong Ho Park, Song Lee, Yu Mi Chang
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Abstract
Provided are a tricyclodecane dimethanol composition, in which a ratio of isomers is controlled, and a preparation method thereof.
Claims7
A tricyclodecane dimethanol composition comprising
- A) octahydro-4,7-methano-1H-indene-1eq,6eq-dimethanol;
- B) octahydro-4,7-methano-1H-indene-3eq,6eq-dimethanol;
- C) octahydro-4,7-methano-1H-indene-2eq,6eq-dimethanol;
- and
- D) octahydro-4,7-methano-1H-indene-2ax,6eq-dimethanol, wherein a weight ratio of (A+B+C)/D is 15 to 140.
2 more elements
A method of preparing a tricyclodecane dimethanol composition,
- the tricyclodecane dimethanol composition comprising
- A) octahydro-4,7-methano-1H-indene-1eq,6eq-dimethanol;
- B) octahydro-4,7-methano-1H-indene-3eq,6eq-dimethanol;
- C) octahydro-4,7-methano-1H-indene-2eq,6eq-dimethanol;
- and
- D) octahydro-4,7-methano-1H-indene-2ax,6eq-dimethanol,
- wherein a weight ratio of (A+B+C)/D is 15 to 140,
- the method comprising the step of:
- performing a hydrogenation reaction of tricyclodecane dialdehyde in the presence of a hydrogenation catalyst including a support and a catalyst metal supported on the support,
- wherein the hydrogenation catalyst is Ru/Al2O3, Pt/Al2O3, Pd/Al2O3, Pd/BaSO3, Pd/CaCO3, Pd/BaCO3, or Cu/Cr, and
- wherein the hydrogenation catalyst is used in an amount of 500 ppm to 3,000 ppm (based on the catalyst metal) of the total weight of tricyclodecane dialdehyde.
8 more elements
Dependencies are inferred from the claim text.