The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 1988
Filed:
Nov. 19, 1986
Yoshihiro Hayashi, Chita, JP;
Takeshi Okubo, Kyoto, JP;
Kazuhiro Takeshita, Chita, JP;
Akinori Higuchi, Tokai, JP;
San Nopco Limited, Kyoto, JP;
Abstract
A lubricant for paper coating compositions. The lubricant is an aqueous dispersion of an ester compound of the formula (I): ##STR1## wherein R is an alkyl or alkenyl group having 3 or more carbon atoms or an alkyl or alkenyl group having a hydroxyl group, and R' is an alkyl or alkenyl group having 4 or more carbon atoms, provided that the total number of carbon atoms of R and R' is 15 or more. The lubricant is made by emulsifying or dispersing the ester compound with a high-speed agitation emulsifying device or piston-type high pressure emulsifying device in the presence of water and nonionic and anionic surfactants or the salt of a copolymer of an .alpha.,.beta.-unsaturated dibasic acid or its monoester with styrene.