Aqueous silicone emulsion for coating woven or non-woven fibrous substrates
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United States of America Patent
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May 3, 2011
Grant Date -
Aug 28, 2008
app pub date -
Feb 1, 2008
filing date -
Jun 18, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
. The emulsion contains (A) a POS with ≡Si-vinyl units, (B) a POS with ≡SiH units, (C) an adhesion promoter, (D) a catalyst, (E) at least one surfactant, (F) optionally a POS resin with ≡Si-vinyl units, (G) optionally a crosslinking inhibitor, (H) optionally a pH fixing agent, (I) optionally a formulating additive, (J) optionally a filler, and (K) water. Adhesion promoter (C) is selected from protective hydrocolloids, hydroxylated silanes and/or POS carrying at least one hydroxyl group and at least one salified amino group per molecule, and mixtures thereof, and is present in the range from 0.005 to 10% by weight, based on the silicone phase. Also disclosed is the corresponding coating process and the coated substrate.
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