# US 4,396,681 A · Process for coating one pot moisture curable coating composition onto non-porous substrate and article

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- Number: US 4,396,681 A
- Document ID: US4396681A
- Status: Granted
- Kind: A
- Application number: 06/403,728
- Filed: 1982-07-30
- Granted: 1983-08-02
- Earliest claimed: 1981-06-10
- Assignees: Essex Chemical Corporation
- Inventors: Sidky D. Rizk; Navinchandra B. Shah
- Web page: https://patentgrep.com/patent/US4396681A

## CPC

- C08G 18/718: {containing silicon}
- C08G 18/10: Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
- C08G 18/3296: {being in latent form}
- C08G 18/6283: {Polymers of nitrogen containing compounds having carbon-to-carbon double bonds (C08G18/6262, C08G18/6266 take precedence)}
- Y10T 428/31551: Of polyamidoester [polyurethane, polyisocyanate, polycarbamate, etc.]
- Y10T 428/31601: Quartz or glass
- Y10T 428/31605: Next to free metal
- Y10T 428/31612: As silicone, silane or siloxane
- Y10T 428/31663: As siloxane, silicone or silane
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

What are disclosed are a one pot moisture-curable two-component coating composition comprising a first component having at least one isocyanate group and at least one hydrolyzable alkoxysilane group therein and a second component having at least one oxazolidine group therein, methods of forming a tenacious coating therewith on non-porous substrates such as glass and of further applying a resinous sealant composition over such a tenacious coating used as a primer, and coated substrates having such a tenacious coating thereon without or with a further resinous sealant composition.

## Claims

### Claim 1

A method for forming a tenacious coating, resistant to weathering, on a non-porous substrate, which method comprises applying to said non-porous substrate a "one pot" moisture-curable coating composition comprising a first component having at least one isocyanate group and at least one hydrolyzable alkoxysilane group therein, and a second component having at least one oxazolidine group therein, and curing said composition in the presence of moisture.

### Claim 2 (depends on 1)

A method as in claim 1 wherein said nonporous substrate is glass.

### Claim 3 (depends on 2)

A tenacious coating on a glass substrate made by the method of claim 2.

### Claim 4 (depends on 1)

A method as in claim 1 wherein a resinous sealant composition is further applied over said tenacious coating, which latter serves as a primer for said sealant composition.

### Claim 5 (depends on 4)

A method as in claim 4 wherein said resinous sealant composition is a moisture-curable polyurethane sealant.

### Claim 6 (depends on 4)

A method as in claim 4 wherein said tenacious coating is on a non-porous glass substrate.

### Claim 7 (depends on 1)

A coated non-porous substrate having a tenacious coating thereon, made by the method of claim 1.

### Claim 8 (depends on 4)

A coated non-porous substrate having a tenacious primer coating thereon and a resinous sealant composition bonded to said primer coating, made by the method of claim 4.

### Claim 9 (depends on 8)

A coated non-porous substrate as in claim 8 wherein said substrate is glass.

### Claim 10 (depends on 5)

A coated non-porous substrate made by the method of claim 5.

### Claim 11 (depends on 10)

A coated substrate as in claim 10 wherein said substrate is glass.