Coating processes – With post-treatment of coating or coating material – Heating or drying
Reexamination Certificate
2011-05-03
2011-05-03
Zimmer, Marc S (Department: 1765)
Coating processes
With post-treatment of coating or coating material
Heating or drying
C252S008610, C428S447000, C525S477000, C525S478000, C528S015000, C528S031000, C528S032000
Reexamination Certificate
active
07935386
ABSTRACT:
An aqueous polyorganosiloxane (POS) emulsion which can easily be deposited on/applied to a fibrous substrate at high speed and at limited deposition rates, for example less than 40 g/m2. 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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Dumont Laurent
Feder Michel
Lafaysse Francis
Robelin Sylvie
Lydon James C.
Rhodia Chimie
Zimmer Marc S
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