# US 5,707,907 A · High loading, low viscosity medium for ceramic coating composition

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- Number: US 5,707,907 A
- Document ID: US5707907A
- Status: Granted
- Kind: A
- Application number: 08/798,469
- Filed: 1997-02-10
- Granted: 1998-01-13
- Earliest claimed: 1994-12-14
- Assignees: Cerdec Corporation
- Inventors: Terry Joseph Brown
- Web page: https://patentgrep.com/patent/US5707907A

## CPC

- C03C 8/16: with vehicle or suspending agents, e.g. slip
- C03C 8/18: containing free metals
- C03C: CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS

## Abstract

An improved medium for use in preparing ceramic coating compositions. The improvement resides in the employment of pantothenol as a rheology modifier in the medium.

## Claims

### Claim 1

In a ceramic coating composition comprising a glass frit and an organic medium, the improvement wherein the organic medium is a medium comprising a solvent base of tripropylene glycol methyl ether in an amount of about 50% to 99% by weight and about 0.1 to 50% by weight pantothenol.

### Claim 2 (depends on 1)

A composition according to claim 1 further containing a pigment.

### Claim 3 (depends on 1)

A composition according to claim 1 further containing a finely divided electrically conductive metal.

### Claim 4 (depends on 1)

A method for the preparation of a glass substrate coated with a ceramic coating composition which comprises applying to at least a portion of a glass substrate a ceramic coating composition as defined in claim 1 and subsequently firing said coated substrate to fuse said coating to said substrate.

### Claim 5 (depends on 4)

A coated glass substrate produced in accordance with the process of claim 4.