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US 6,641,870 B2Granted
Ink, paint, pollutant, bioorganism, oil, water and/or dirt repellent coating
AssigneeDegussa AG
InventorsBernd Bartkowiak, Burkhard Standke
Life of this patent
Estimating the term…
Abstract
A process for producing a coating on a substrate, which includes: (A) applying to a substrate in a first step a composition which includes one or more organosilicon components defined in the claims, to obtain a treated substrate, and (B) subsequently in a second step applying (i) at least one organosiloxane which carries at least one triamino group of the general formula {NHx(CH2)aNHy(CH2)bNH2}— or a composition which includes (i), to the treated substrate.
Claims15
A process for producing a coating on a substrate, comprising:
- A) applying to a substrate in a first step a composition comprising one or more organosilicon components selected from the group consisting of
- (i) at least one organosiloxane which carries at least one triamino group of the general formula I
- {NHx(CH2)aNHy(CH2)bNHz}— (I),
- such a group being attached by way of at least one N-bonded alkylene group having 1 to 4 carbon atoms to at least one silicon atom, a and b being identical or different and representing an integer from 1 to 6, x being 0 or 1 or 2, y being 0 or 1, z being 0 or 1 or 2, subject to the proviso that (x+y+z)≦4,
- at least one Si—C-bonded fluoroalkyl group of the general formula II
- F3C(CF2)r(CH2)s— (II)
- in which r is an integer from 0 to 18 and s is 0 or 2,
- and at least one hydroxyl and/or alkoxy group,
- (ii) a composition which comprises (i),
- (iii) an alkylalkoxysilane in which alkyl represents linear, branched or cyclic alkyl radicals having 1 to 16 carbon atoms and alkoxy represents methoxy or ethoxy or propoxy or butoxy,
- (iv) a composition which comprises at least one organosiloxane which carries at least one amino group of the general formula III
- {NH2(CH2)a(NH)r(CH2)b(NH)s}— (III)
- this group being attached by way of at least one N-bonded alkylene group having 1 to 4 carbon atoms to at least one silicon atom, a and b being identical or different and being an integer from 0 to 6, r being 0 or 1, s being 0 or 1, subject to the proviso that when a=0 then r=0 and when b=0 then s=0,
- at least one Si—C-bonded linear, branched or cyclic alkyl group having 1 to 16 carbon atoms,
- and at least one hydroxyl and/or alkoxy group;
- and
- (v) a mixture thereof,
- to obtain a treated substrate, and
- B) subsequently in a second step applying (i) or (ii) to the treated substrate.
16 more elements
Dependencies are inferred from the claim text.