US4433007A — Process for coating substrates with aqueous emuls…

Claim 1

Independent Claim 177 words

A process for coating a substrate which comprises (A) coating the substrate with an aqueous emulsion containing: (1) A diorganopolysiloxane having terminal SiC-bonded vinyl groups and an average viscosity of from 1000 to 100,000 mPa.s at 25° C., (2) An organopolysiloxane having at least three Si-bonded hydrogen atoms per molecule, (3) A catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond, (6) A vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane which is present in an amount of from 3 to 30 parts by weight for each 60 to 90 parts by weight of diorganopolysiloxane (1), in which from 10 to 50 percent of the number of the organic radicals bonded to the Si atoms of the diorganopolysiloxane units are vinyl groups and the remaining organic radicals are free of aliphatic multiple bonds, (7) An organosilicon adhesive compound, and (8) At least one aqueous dispersion of a polymer selected from the group consisting of ethylene, vinyl acetate, acrylic acid esters, and copolymers thereof containing at least two of these monomers and thereafter (B) crosslinking the coated substrate.

Claim 2

Dependent Claim 177 words

A process for coating a substrate which comprises (A) coating the substrate with an aqueous emulsion containing: (1) A diorganopolysiloxane having terminal SiC-bonded vinyl groups and an average viscosity of from 1000 to 100,000 mPa.s at 25° C., (2) An organopolysiloxane having at least three Si-bonded hydrogen atoms per molecule, (3) A catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond, (6) A vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane which is present in an amount of from 3 to 30 parts by weight for each 60 to 90 parts by weight of diorganopolysiloxane (1), in which from 10 to 50 percent of the number of the organic radicals bonded to the Si atoms of the diorganopolysiloxane units are vinyl groups and the remaining organic radicals are free of aliphatic multiple bonds, (7) An organosilicon adhesive compound, and (8) At least one aqueous dispersion of a polymer selected from the group consisting of ethylene, vinyl acetate, acrylic acid esters, and copolymers thereof containing at least two of these monomers and thereafter (B) crosslinking the coated substrate.

Claim 3

Dependent Claim 25 words

The process of claim 1, wherein the aqueous emulsion contains an agent (4) which retards the addition of Si-bonded hydrogen to an aliphatic multiple bond.

Claim 4

Dependent Claim 16 words

The process of claim 1, wherein a thickening agent (5) is mixed with the aqueous emulsion.

Claim 5

Dependent Claim 38 words

The process of claim 1, 2 or 3 wherein the aqueous dispersion (8) is present in an amount of from 50 to 2000 parts by weight for each 60 to 90 parts by weight of the diorganopolysiloxane (1).

Claim 6

Dependent Claim 13 words

The process of claim 1, wherein the aqueous dispersion (8) contains cross-linkable polymers.

Claim 7

Dependent Claim 19 words

The process of claim 1, wherein the coated substrate is heated to an elevated temperature to cross-link the organopolysiloxanes.

Claim 8

Dependent Claim 30 words

The process of claim 1, 2 or 3, wherein the vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane (6) is added to an aqueous emulsion containing constituents (1) through (5) and (7) and (8).

Claim 9

Dependent Claim 14 words

The process of claim 1, wherein the coated substrate is crosslinked with ultraviolet light.

Claim 10

Dependent Claim 18 words

The process of claim 1, wherein the coated substrate is dried at an elevated temperature prior to crosslinking.

Claim 11

Dependent Claim 205 words

A process for coating a substrate which comprises (A) applying to the substrate at least one coat of (a) an aqueous emulsion containing: (5) A thickening agent, (7) An organosilicon adhesive compound, and (8) At least one aqueous dispersion of a polymer selected from the group consisting of ethylene, vinyl acetate, acrylic acid esters and copolymers thereof containing at least two of these monomers, (B) drying the coated substrate, then (C) applying to the coated substrate (b) an aqueous emulsion containing: (1) A diorganopolysiloxane having terminal SiC-bonded vinyl groups and an average viscosity of from 1000 to 100,000 mPa.s at 25° C., (2) An organopolysiloxane having at least three Si-bonded hydrogen atoms per molecule, (3) A catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond, and (6) A vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane which is present in an amount of from 3 to 30 parts by weight for each 60 to 90 parts by weight of diorganopolysiloxane (1), in which from 10 to 50 percent of the number of the organic radicals bonded to the Si atoms of the diorganopolysiloxane units are vinyl groups and the remaining organic radicals are free of aliphatic multiple bonds and thereafter (D) crosslinking the coated substrate.

Claim 12

Dependent Claim 205 words

A process for coating a substrate which comprises (A) applying to the substrate at least one coat of (a) an aqueous emulsion containing: (5) A thickening agent, (7) An organosilicon adhesive compound, and (8) At least one aqueous dispersion of a polymer selected from the group consisting of ethylene, vinyl acetate, acrylic acid esters and copolymers thereof containing at least two of these monomers, (B) drying the coated substrate, then (C) applying to the coated substrate (b) an aqueous emulsion containing: (1) A diorganopolysiloxane having terminal SiC-bonded vinyl groups and an average viscosity of from 1000 to 100,000 mPa.s at 25° C., (2) An organopolysiloxane having at least three Si-bonded hydrogen atoms per molecule, (3) A catalyst which promotes the addition of Si-bonded hydrogen to an aliphatic multiple bond, and (6) A vinyl-containing trimethylsiloxy end-blocked diorganopolysiloxane which is present in an amount of from 3 to 30 parts by weight for each 60 to 90 parts by weight of diorganopolysiloxane (1), in which from 10 to 50 percent of the number of the organic radicals bonded to the Si atoms of the diorganopolysiloxane units are vinyl groups and the remaining organic radicals are free of aliphatic multiple bonds and thereafter (D) crosslinking the coated substrate.

Claim 13

Dependent Claim 34 words

The process of claim 10, wherein the aqueous dispersion (8) is present in an amount of from 50 to 2000 parts by weight for each 60 to 90 parts by weight of diorganopolysiloxane (1).

Claim 14

Dependent Claim 13 words

The process of claim 10, wherein the aqueous dispersion (8) contains cross-linkable polymers.

Claim 15

Dependent Claim 26 words

The process of claim 10, wherein the aqueous emulsion (b) contains an agent (4) which retards the addition of Si-bonded hydrogen to an aliphatic multiple bond.

Claim 16

Dependent Claim 27 words

The process of claim 10, wherein more than one coat of aqueous emulsion (a) is applied to the substrate prior to the application of aqueous emulsion (b).

Claim 17

Dependent Claim 20 words

The process of claim 14, wherein more than one coat of aqueous emulsion (b) is applied to the coated substrate.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	1987-02-20	1987-08-22	1988-02-21	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	1991-02-20	1991-08-22	1992-02-21	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	1995-02-20	1995-08-22	1996-02-21	$7700.00	Window Closed / Lapsed

Process for coating substrates with aqueous emulsions containing organopolysiloxanes

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