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. 23, 2001
Filed:
Apr. 17, 2000
Jean-Luc Joye, Cranbury, NJ (US);
Rhodia Chimie, Boulogne Billancourt Cedex, FR;
Abstract
The present invention relates to a process for removing fatty substances. According to this process, the following steps are carried out:1) at least a first degreasing operation is carried out on the article to be treated, in the presence of a solvent mixture comprising at least one compound (a) chosen from C,-C,dialkyl esters of at least one C,-C,aliphatic diacid, and at least one compound (b) which is miscible in the compound (a) and which at least partially dissolves the fatty substance contaminating the article, 2) at least a second degreasing operation is optionally carried out, in the presence of a solvent mixture comprising at least one compound (a) and at least one compound (b) as defined above, with a compound (a)/compound (b) volume ratio of greater than or equal to 1, 3) a third degreasing operation is carried out in the presence of compound (a), 4) the article thus treated is rinsed with water.