# US RE32,595 E · Process for making a laminated bearing utilizing plastics alloy compositions

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- Number: US RE32,595 E
- Document ID: USRE32595E
- Status: Granted
- Kind: E
- Application number: 06/824,798
- Filed: 1986-02-05
- Granted: 1988-02-09
- Earliest claimed: 1981-10-22
- Assignees: Aeplc
- Inventors: Glyndwr J. Davies
- Web page: https://patentgrep.com/patent/USRE32595E

## Abstract

A plastics alloy for a bearing material comprising polyphenylene sulphide and polyether ether ketone. The alloy is formed by powder mixing, melt blending or solvent blending and applied to a metal backing either as a sheet, or in solution or in powder form. The alloy is heated and roll bonded to the backing.

## Claims

### Claim 1

A method of making a plain bearing comprising a plastics alloy bearing layer and a metal backing, the method including the steps of mixing together a polyarylene sulphide and a polyether ketone to form an alloy, applying said alloy to said metal backing and bonding said alloy to said backing.

### Claim 2 (depends on 1)

A method according to claim 1 wherein said alloy is formed by solvent blending.

### Claim 3 (depends on 2)

A method according to claim 2 wherein said solvent is a benzyl benzoate.

### Claim 4 (depends on 1)

A method according to claim 1 wherein said alloy is formed by melt blending.

### Claim 5 (depends on 1, 4)

A method according to any one of claims 1 or 4 wherein said alloy is applied to said backing as a sheet and roll bonded.

### Claim 6 (depends on 1)

A method according to claim 1 wherein said alloy is formed by powder mixing.

### Claim 7 (depends on 1, 4, 6)

A method according to any one of claims 1 or 4 or claim 6 wherein said alloy is applied to said backing in powder form and heated to bond it to said backing.

### Claim at position 8

[8. A plastics alloy comprising a polyarylene sulphide and an aromatic polyether ketone.]

### Claim at position 9 (depends on 8)

[9. An alloy according to claim 8 wherein said polyarylene sulphide is polyphenylene sulphide.]

### Claim at position 10 (depends on 9)

[10. An alloy as claimed in claim 9 in which the polyphenylene sulphide comprises from 20 to 50% by weight of the alloy.]

### Claim at position 11 (depends on 8, 9, 10)

[11. An alloy according to any one of claims 8, 9 and 10 wherein said polyether ketone is polyether ether
ketone.]

### Claim 12

A laminated bearing comprising a metal backing member and a plastics alloy bearing member of a polyarylene sulphide and an aromatic polyether ketone bonded to said backing member.

### Claim 13 (depends on 12)

A laminated bearing according to claim 12 wherein said polyarylene sulphide is polyphenylene sulphide.

### Claim 14 (depends on 13)

A laminated bearing as claimed in claim 13 in which polyphenylene sulphide comprises from 20 to 50% by weight of the alloy forming the bearing member.

### Claim 15 (depends on 12, 13, 14)

A laminated bearing according to any one of claims 12, 13 or 14 wherein said polyether ketone is polyether ether ketone.

### Claim 16 (depends on 12)

A laminated bearing as claimed in claim 12 wherein the plastics alloy is one formed by solvent blending.

### Claim 17 (depends on 16)

A laminated bearing as claimed in claim 16 wherein the solvent is benzyl benzoate.

### Claim 18 (depends on 12)

A laminated bearing as claimed in claim 12 wherein the plastics alloy is one formed by powder mixing or melt blending.