Patent ID: 7935386
Filing Date: 2011-05-03
Classification: C03C,C08G,C08L,D06M,D06N,Y10T

Abstract:
1. Process for increasing the fraying resistance of a fibrous substrate comprising the following steps: preparation of an improved aqueous polyorganosiloxane (POS) emulsion, crosslinkable to an elastomer by means of polyaddition reactions, said emulsion comprising: the improvement consisting in: selecting the adhesion promoter (C) from the group consisting of hydroxylated silanes and POS, either of which carries at least one hydroxyl group and at least one salified amino group per molecule, selecting a percentage by weight of the adhesion promoter (C), based on the silicone phase, such that deposition on said fibrous substrate of at least one layer of the aqueous polyorganosiloxane (POS) emulsion; crosslinking to give a fibrous substrate coated with a layer of elastomer in such a way that the ratio of the dry weight of the coating to the weight of the fibrous substrate is less than 0.2.