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:
May. 14, 2002
Filed:
Feb. 02, 1999
Jean-Paul Benayoun, Villeurbanne, FR;
Christophe Guyot, Lyons, FR;
André Lievre, Saint-Genis-Laval, FR;
Christian Mirou, Lyons, FR;
Rhodia Chimie, Boulogne Billancourt Cedes, FR;
Abstract
The present invention relates to an anti-adhesion treatment process by continuous coating of a strip of paper, this coating comprising a silicone composition based on polyorganosiloxanes (POSs) of FC/LTC type. According to this process, a POS A, a crosslinking agent B (hydrosilylation and/or dehydrogenopolycondensation), a catalyst C and, optionally, an inhibitor D, an adhesion modifier E and other compounds F are used. These constituents A to F are mixed continuously and in metered amounts, selecting mixing conditions such that the bath lifetime BLT is <10 h, such that the bath homogeneity is such that its DSC signature comprises a Gaussian peak (FIG. ), and such that the flow rate of production of the homogeneous mixture A to F is such that the duration d separating the placing together of the components A, B and C and the time of application of the composition to the traveling support strip is less than or equal to the BLT. This process also includes Steps (2) for conveying the composition to the coating site, Step (3) for coating the strip of paper with the composition and Step (4) of thermal crosslinking.