| 摘要 |
PROBLEM TO BE SOLVED: To obtain a pour point depressant for dropping the pour point of fuel oil, lubricating oil, etc., at a low temperature. SOLUTION: The pour point depressant for hydrocarbon oil comprises a vinyl polymer (A) composed of a vinyl monomer (a) represented by general formula (1) (Q is a 2-12C radical-polymerizable alkenyl group or a (meth)acryloyloxy group; R<SP>1</SP>is a 1-6C alkylene group; R<SP>2</SP>-R<SP>6</SP>are each a 1-12C alkyl group and R<SP>2</SP>-R<SP>6</SP>may be the same or different; n is an integer of 1-200) as an essential constituent monomer. COPYRIGHT: (C)2005,JPO&NCIPI |
