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US 12,378,336 B2Granted
Dewaxing aid
AssigneeNof Corporation
InventorsShunsuke Monjiyama, Hideki Kawamoto, Kazuhiro Oda
Life of this patent
Estimating the term…
Abstract
The dewaxing aid of the present invention is a dewaxing aid including an ethylene-α-olefin copolymer (A) having a molar ratio [(a)/(b)] of (a) ethylene and (b) an α-olefin having 3 or more and 12 or less carbon atoms of 93/7 to 75/25, and having a weight average molecular weight of 10,000 to 500,000. According to the present invention, a dewaxing aid that is excellent in improving filterability can be provided.
Claims7
A dewaxing aid, comprising:
- an ethylene-α-olefin copolymer (A) having a molar ratio [(a)/(b)] of (a) ethylene and (b) an α-olefin having 3 or more and 12 or less carbon atoms of 93/7 to 75/25 and having a weight average molecular weight of 10,000 to 500,000;
- and
- an ethylene-ethyl acrylate copolymer (B) having a molar ratio [(c)/(d)] of (c) ethylene and (d) ethyl acrylate of 98/2 to 80/20, and having a weight average molecular weight of 50,000 to 1,000,000 at a ratio of (A)/(B)=95/5 to 70/30 (mass ratio).
Dependencies are inferred from the claim text.