Accession Number : ADD001072
Title : Method of Impregnating Leather and Resultant Article.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON D C
Personal Author(s) : Seligsberger,Ludwig
Report Date : 01 Nov 1966
Pagination or Media Count : 4
Abstract : The invention relates to the impregnation of the grain side of leather with an incompletely polymerized polyurethane, which is further polymerized in situ to a rubbery vulcanizate after having penetrated into the interfiber space of the grain layer of the leather. An object of the invention is to provide a novel leather impregnating treatment producing a leather that resists penetration from the grain side of liquids such as water, petroleum products, liquid and gaseous chemical warefare agents, and corrosive liquids. Another object is the impregnation of leather with a material which when introduced in the interfiber space of the grain side of the leather will permit the treated leather to be serviceable at low temperatures and will greatly increase the abrasion and scuff resistance of the leather.
Descriptors : *Patents, *Leather, *Polyurethane resins, *Protective treatments, Impregnation, Crosslinking(Chemistry), Water repellents, Solvent extraction, Polymerization
Subject Categories : Organic Chemistry
Distribution Statement : APPROVED FOR PUBLIC RELEASE