# US 5,707,701 A · Resin/rubber laminate

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- Number: US 5,707,701 A
- Document ID: US5707701A
- Status: Granted
- Kind: A
- Application number: 08/518,296
- Filed: 1995-08-23
- Granted: 1998-01-13
- Earliest claimed: 1994-08-31
- Assignees: Bridgestone Corporation
- Inventors: Shinji Saitoh; Setsuo Akiyama; Kazuo Naito
- Web page: https://patentgrep.com/patent/US5707701A

## CPC

- B32B 25/08: of synthetic resin
- B32B 1/08: Tubular products
- B32B 38/0008: {Electrical discharge treatment, e.g. corona, plasma treatment; wave energy or particle radiation (heat treatment B32B38/0036)}
- C08K 5/5419: containing at least one Si—C bond
- F16L 11/04: made of rubber or flexible plastics
- B32B 2310/14: Corona, ionisation, electrical discharge, plasma treatment
- B32B 2597/00: Tubular articles, e.g. hoses, pipes
- Y10T 428/1393: Multilayer [continuous layer]
- Y10T 428/31743: Next to addition polymer from unsaturated monomer[s]
- Y10T 428/31746: Polymer of monoethylenically unsaturated hydrocarbon
- Y10T 428/3175: Next to addition polymer from unsaturated monomer[s]
- Y10T 428/31757: Polymer of monoethylenically unsaturated hydrocarbon
- B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- F16L: PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A rubber composition comprising a rubber component and a di- or trialkoxysilane compound is joined to a surface-modified resin to form a resin/rubber laminate. The laminate typically forms a refrigerant carrying hose wherein the resin defines an inside surface.

## Claims

### Claim 1

A resin rubber laminate comprising:
(i) a layer of a rubber composition blend comprising (a) a rubber component and (b) an alkoxysilane compound of the general formula (1): ##STR3## wherein R.sup.1 and R.sup.2 are functional groups, R.sup.3 and R.sup.4 are hydrocarbon groups, said composition blend comprising 100 parts by weight of rubber component (a) to 0.05 to 5 parts by weight of alkoxysilane compound (b) joined to:
(ii) a surface-modified layer of a resin:
wherein said surface-modified resin layer is surface modified by plasma treatment, corona discharge treatment or exposure to ultraviolet radiation.

### Claim 2 (depends on 1)

The resin/rubber laminate of claim 1 wherein the alkoxysilane compound contains an amino group.

### Claim 3 (depends on 1)

The resin/rubber laminate of claim 1 wherein said resin comprises a polyamide resin as a main component.

### Claim 4 (depends on 1)

The resin/rubber laminate of claim 1 wherein said rubber component is a copolymer of isobutylene and para-methylstyrene, the para-methylstyrene being partially brominated.

### Claim 5 (depends on 4)

The resin/rubber laminate of claim 4 which forms a hose for carrying refrigerant.

### Claim 6 (depends on 5)

The resin/rubber laminate of claim 5 wherein said resin and said rubber composition form radially inside and outside layers of the hose, respectively.