| 摘要 |
PROBLEM TO BE SOLVED: To provide a hydrocarbon composition which has a reduced amount of impurities content other than a target component as compared with the existing hydrocarbon composition, is excellent in storage stability, slippage at the time of application (smoothness), gloss after application, stability under light irradiation, lubricity, and mold releasability, and has a reduced environmental load, and to provide a production method thereof. ! SOLUTION: The invention provides a method for producing a pasty composition which comprises performing decarboxylation dimerization reaction against fatty acid composition in which (1) the content of a branched chain fatty acid is 70 mass% or more, (2) the content of a branched chain fatty acid which is liquid at 25°C and has one carboxylic acid is 65 mass% or less, and (3) the content ratio of a branched chain fatty acid which is liquid at 25°C and has two or three carboxylic acids to the branched chain fatty acid is 10 mass% or more, and subsequently per |
