US3952136A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Multi-layer product of metal and resin, and its production
Assignee: Sumitomo Chemical Co Ltd
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Filing: 1974-09-25
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Granted: 1976-04-20
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Expires: 1994-09-25
Abstract
Abstract A multi-layer product of metal and resin which comprises a layer of a metal and a layer of a resin adhered thereon, said resin being a copolymer consisting essentially of ethylene, at least one unsaturated glycidyl monomer and at least one unsaturated ethylenic monomer. In the resultant multi-layer product, the metal layer and the resin layer are firmly bonded to each other.
Inventors
- 👤 Kanji Yoshikawa
- 👤 Yoshiharu Tatsukami
- 👤 Shuji Kitamura
- 👤 Junji Ono
- 👤 Haruo Tateiwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:34
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B15/20; B32B2311/00; B32B2311/24; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31529; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
A multi-layer product of metal and resin which comprises a layer of a metal selected from the group consisting of iron, aluminum, zinc, tin, copper and alloys thereof and a layer of a resin adhered thereto, said resin being a copolymer consisting essentially of (a) about 50 to 98% by weight of ethylene unit, (b) about 1 to 25% by weight of at least one unsaturated glycidyl ester monomer unit, and (c) about 1 to 25% by weight of at least one unsaturated ethylenic monomer unit other than ethylene, based on the weight of the copolymer.
Claim 2
Dependent Claim
96 words
A multi-layer product of metal and resin which comprises a layer of a metal selected from the group consisting of iron, aluminum, zinc, tin, copper and alloys thereof and a layer of a resin adhered thereto, said resin being a copolymer consisting essentially of (a) about 50 to 98% by weight of ethylene unit, (b) about 1 to 25% by weight of at least one unsaturated glycidyl ester monomer unit, and (c) about 1 to 25% by weight of at least one unsaturated ethylenic monomer unit other than ethylene, based on the weight of the copolymer.
Claim 3
Dependent Claim
54 words
The multi-layer product of metal and resin according to claim 1, wherein the resin is a copolymer having an intrinsic viscosity of 0.5 to 1.5 deciliters per gram at 135°C in a tetralin solution and a melt index of 300 to 0.01 g per 10 minutes under a load of 2160 g at 190°C.
Claim 4
Dependent Claim
30 words
The multi-layer product of metal and resin according to claim 1, wherein the unsaturated glycidyl monomer is selected from the group consisting of glycidyl acrylate, glycidyl methacrylate and monoglycidyl itaconate.
Claim 5
Dependent Claim
40 words
The multi-layer product of metal and resin according to claim 1, wherein the unsaturated ethylenic monomer is selected from the group consisting of vinyl acetate, vinyl propionate, methyl acrylate, ethyl acrylate, 2-ethylhexyl acrylate, methyl methacrylate, ethyl methacrylate and 2-ethylhexyl methacrylate.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-04-20 | 1979-10-20 | 1980-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-04-20 | 1983-10-20 | 1984-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-04-20 | 1987-10-20 | 1988-04-20 | $7700.00 | Window Closed / Lapsed |