IP Library Granted Patent US 10,023,994
Granted Patent B2
US 10,023,994 · App. 13/509,400 · Granted Jul 17, 2018

Coated fabric products

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Quick Facts
Patent No.
US 10,023,994
App. No.
13/509,400
Granted
Jul 17, 2018
Kind
B2
Abstract

An air bag coated with a cured organopolysiloxane composition, characterized in that the air bag is top coated with an antifriction coating comprising at least one solid lubricant dispersed in an organic polymer binder.

Claims (10)

1. An air bag coated with a cured organopolysiloxane composition, wherein the cured organopolysiloxane composition is directly top coated with an antifriction coating comprising a siloxane polyether wetting agent, an epoxysilane adhesion promoter, non-ionic surfactant, aluminum trihydrate, and solid lubricant comprising talc and polytetrafluoroethylene, wherein the solid lubricant is dispersed in an urethane polymer binder, wherein the antifriction coating comprises 5 to 30% of the talc on a dry coat weight basis; 20 to 90% of the solid lubricant, including the talc, on a dry coat weight basis; 3 to 50% of the urethane polymer binder on a dry coat weight basis; and 5 to 55% of the aluminum trihydrate on a dry coat weight basis.

2. An air bag according to claim 1 , wherein the coating weight of the antifriction coating is 1 to 15 g/m 2 on a dry coat weight basis.

3. A process for coating an air bag or air bag fabric in which the bag or fabric is coated with an organopolysiloxane composition to form an organopolysiloxane base coat, wherein the organopolysiloxane base coat is directly top coated with an antifriction coating composition comprising an aqueous dispersion of a siloxane polyether wetting agent, an epoxysilane adhesion promoter, non-ionic surfactant, aluminum trihydrate, and solid lubricant comprising talc and polytetrafluoroethylene, wherein the solid lubricant is dispersed in an urethane polymer binder, wherein the antifriction coating comprises 5 to 30% of the talc on a dry coat weight basis; 20 to 90% of the solid lubricant, including the talc, on a dry coat weight basis; 3 to 50% of the urethane polymer binder on a dry coat weight basis; and 5 to 55% of the aluminum trihydrate on a dry coat weight basis.

4. A process according to claim 3 , wherein the siloxane polyether wetting agent has 1-3 alkylpoly(ethyleneoxy)siloxane groups (i) and 1 to 4 alkyl-siloxane groups (ii).

5. A process according to claim 3 , wherein the aqueous dispersion contains an aminosilane adhesion promoter.

6. A process according to claim 3 , wherein the organopolysiloxane composition which is applied to the bag or fabric as base coat comprises an organopolysiloxane having aliphatically unsaturated hydrocarbon or hydrocarbonoxy substituents, an organosilicon crosslinker having at least 3 silicon-bonded hydrogen atoms, a catalyst able to promote the reaction of the aliphatically unsaturated hydrocarbon or hydrocarbonoxy substituents with Si—H groups and a reinforcing filler, and is cured before application of the antifriction coating.

7. A process according to claim 3 , wherein the organopolysiloxane base coat is cured before application of the antifriction coating composition.

8. A process according to claim 3 , wherein the antifriction coating composition is applied to uncured organopolysiloxane base coat and the combination of the organopolysiloxane base coat composition and the antifriction coating composition is heat cured.

9. An antifriction coating composition comprising a siloxane polyether wetting agent, an epoxysilane adhesion promoter, non-ionic surfactant, aluminum trihydrate, and solid lubricant comprising talc and polytetrafluoroethylene, wherein the solid lubricant is dispersed in an urethane polymer binder, wherein the antifriction coating comprises 5 to 30% of the talc on a dry coat weight basis; 20 to 90% of the solid lubricant, including the talc, on a dry coat weight basis; 3 to 50% of the urethane polymer binder on a dry coat weight basis; and 5 to 55% of the aluminum trihydrate on a dry coat weight basis.

10. An antifriction coating according to claim 9 , wherein the siloxane polyether is a 1,1,1,3,5,5,5-heptamethyl-3-polyethoxypropyl-trisiloxane.

Assignments (6)
CHANGE OF NAME Recorded Feb 28, 2018
From: DOW CORNING CORPORATION
To: DOW SILICONES CORPORATION
Reel/Frame 045470/0188 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2012
From: BLACKWOOD, WILLIAM
To: DOW CORNING CORPORATION
Reel/Frame 029277/0391 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2012
From: BARTH, MARITA; CLERICI, VITTORIO
To: DOW CORNING GMBH
Reel/Frame 029277/0461 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2012
From: MOUNTNEY, ANDREW
To: DOW CORNING LIMITED
Reel/Frame 029277/0469 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2012
From: DOW CORNING LIMITED
To: DOW CORNING CORPORATION
Reel/Frame 029277/0496 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 12, 2012
From: DOW CORNING GMBH
To: DOW CORNING CORPORATION
Reel/Frame 029277/0502 →