# US 4,397,722 A · Polymers from aromatic silanes and process for their preparation

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 4,397,722 A
- Document ID: US4397722A
- Status: Granted
- Kind: A
- Application number: 06/406,638
- Filed: 1982-08-09
- Granted: 1983-08-09
- Earliest claimed: 1981-12-31
- Assignees: International Business Machines Corporation
- Inventors: Ivan Haller
- Web page: https://patentgrep.com/patent/US4397722A

## CPC

- C08G 77/60: in which all the silicon atoms are connected by linkages other than oxygen atoms
- C09D 4/00: Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond {; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16}
- C08G: MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C09D: COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

Thermally stable electrically insulating polymers are obtained from aromatic silanes by low power, radio frequency glow discharge polymerization at elevated temperature and low vapor pressure.

## Claims

### Claim 1

A polymer formed by low power, radio frequency glow discharge polymerization of a completely aromatic silane monomer at elevated temperature and low vapor pressure.

### Claim 2 (depends on 1)

The polymer as claimed in claim 1 wherein the monomer is phenylsilane.

### Claim 3 (depends on 1)

The polymer as claimed in claim 1 wherein the monomer is diphenylsilane.

### Claim 4 (depends on 1)

The polymer as claimed in claim 1 wherein the monomer is disilylbenzene.

### Claim 5 (depends on 1)

The polymer as claimed in claim 1 wherein the monomer is parachlorophenylsilane.

### Claim 6

A process for forming a polymer, said process comprising the low power, radio frequency glow discharge polymerization at elevated temperature and low vapor pressure of a completely aromatic silane monomer.

### Claim 7 (depends on 6)

The process as claimed in claim 6 wherein the monomer is phenylsilane.

### Claim 8 (depends on 6)

A process as claimed in claim 6 wherein the monomer is diphenylsilane.

### Claim 9 (depends on 6)

A process as claimed in claim 6 wherein the monomer is disilylbenzene.

### Claim 10 (depends on 6)

A process as claimed in claim 6 wherein the monomer is parachlorophenylsilane.