Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Noninterengaged fiber-containing paper-free web or sheet...
Patent
1992-05-27
1993-03-23
Bell, Janyce
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Noninterengaged fiber-containing paper-free web or sheet...
4273899, 427387, 428447, B05D 302, B32B 2712
Patent
active
051962608
ABSTRACT:
The present invention relates to a process for the treatment of fibrous materials with modified organopolysiloxanes, wherein, in an aqueous medium, an organopolysiloxane copolymer prepared in a first stage from customary cyclic siloxanes (A) and unsaturated silanes (B) in the presence of a crosslinking agent and emulsifier (1) is copolymerized in a second stage with at least one vinyl monomer in the presence of emulsifiers (2), and the resulting dispersion of the modified organopolysiloxane copolymer is applied to the material in the customary manner and the material is dried and subjected to condensation.
The process has the advantage that the materials, in particular textiles, treated by the process, above all coated by the process, have very good waterproof properties and at the same time good to very good water repellency. However, the materials are simultaneously distinguished by a pleasant soft handle, without the degree of whiteness thereof being noticeably impaired.
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Chem. Abstract 108(14):113174b.
CPI Profile Booklet 1985, Ref. 85-156361/26 of JP 85/088040.
Bernheim Michael
Dirschl Franz
Uhl Jurgen
Bell Janyce
Ciba-Geigy Corporation
Mathias Marla J.
McC. Roberts Edward
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