US4690856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal polyamide adhesive laminates
Assignee: Ube Corp
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Filing: 1985-12-26
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Granted: 1987-09-01
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Expires: 2005-12-26
Abstract
Abstract A polyamide adhesive composition comprising 100 parts by weight of a polymer component and 0.1 to 5 parts by weight of an aminosilane compound. The polymer component comprises 50 to 99.5% by weight of a polyamide and 0.5 to 50% by weight of a modified polyolefin formed by grafting a polyolefin with an unsaturated compound having a polar group in the molecule and/or a polymer other than polyamides, having a polar group or an aromatic group and a tensile modulus not higher than 2,000 kg/cm2. A laminate comprising a metal material laminated on at least one surface of an adhesive layer composed of the polyamide adhesive composition exhibits high gasoline resistance, high heat resistance, and high T-peel strength.
Inventors
- 👤 Bunsaku Ito
- 👤 Kimio Fukuda
- 👤 Rikio Hara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 01:16
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/18; B32B27/00; B32B27/34; B32B37/00; B32B37/12; B32B37/1207; C; C08; C08L; C08L77/00; C09; C09J; C09J177/00; C09J7/00; C09J7/20; C09J7/22; C09J7/30; C09J7/35; B32B2405/00; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/26; Y10T428/266; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/2848; Y10T428/2852; Y10T428/2878; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31681; Y10T428/31692
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
109 words
A laminate comprising a metal material laminated on at least one surface of an adhesive layer, said adhesive layer being composed of a polyamide adhesive composition comprising 100 parts by weight of a polymer component and 0.1 to 5 parts by weight of an aminosilane compound, said polymer component comprising 50 to 99.5% by weight of a polyamide and 0.5 to 50% by weight of a modified polyolefin formed by grafting a polyolefin with an unsaturated compound having a polar group in the molecule and/or a polymer other than polyamides, having a polar group or an aromatic group and a tensile modulus not higher than 2,000 kg/cm 2 .
Claim 2
Dependent Claim
109 words
A laminate comprising a metal material laminated on at least one surface of an adhesive layer, said adhesive layer being composed of a polyamide adhesive composition comprising 100 parts by weight of a polymer component and 0.1 to 5 parts by weight of an aminosilane compound, said polymer component comprising 50 to 99.5% by weight of a polyamide and 0.5 to 50% by weight of a modified polyolefin formed by grafting a polyolefin with an unsaturated compound having a polar group in the molecule and/or a polymer other than polyamides, having a polar group or an aromatic group and a tensile modulus not higher than 2,000 kg/cm 2 .
Claim 3
Dependent Claim
88 words
A laminate according to claim 1, which has a structure composed of a metal layer/a polymer core layer/a metal layer and having a thickness of 0.3 to 1.5 nun; said polymer core layer having a thickness of 0.01 to 10 mm and being composed of either a single layer of the polyamide adhesive composition or a three layer structure of the polyamide adhesive composition layer/a resin layer/the polyamide adhesive composition layer, each polyamide adhesive layer in said three layer structure having a thickness of 5 to 100 μm.
Claim 4
Dependent Claim
43 words
A laminate according to claim 1, wherein the polyamide forms a matrix and the modified polyolefin and/or the polymer other than polyamides, having a tensile modulus not higher than 2,000 kg/cm 2 , are dispersed in the form of particles in the matrix.
Claim 5
Dependent Claim
28 words
A laminate according to claim 1, wherein the polyamide adhesive composition is in the form of a sheet or film having a thickness of 0.05 to 1.5 mm.
Claim 6
Dependent Claim
27 words
A laminate according to claim 1, wherein the metal material is in the form of a sheet or plate having a thickness of 0.01 to 3 mm.
References Cited (Backward Citations)
US4477513A
Cited
US4481262A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-08-31 | 1991-03-02 | 1991-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-08-31 | 1995-03-02 | 1995-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-08-31 | 1999-03-02 | 1999-09-01 | $7700.00 | Window Closed / Lapsed |