Packaging material comprising iron foil, and container and container lid composed thereof
US4686152A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Nov 18, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12937
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Disclosed is a packaging material which comprises a laminate having an iron foil having a tensile strength (.sigma..sub.B) in the range represented by the following formula: EQU 100 kg/mm.sup.2 .gtoreq..sigma..sub.B .gtoreq.30 kg/mm.sup.2 and a thickness (T) in the range represented by the following formula: EQU 120 .mu.m.gtoreq.T.gtoreq.15 .mu.m and being provided with a surface treatment layer containing metallic tin, metallic chromium or metallic nickel, and an organic resin covering having a total thickness (t) in the range represented by the following formula: EQU T.sup.1/n C/.sigma..sub.B .gtoreq.t.gtoreq.3 .mu.m wherein n is 5.6 and C is 4630. A metal or pigment having an action of improving the processability, an anti-corrosive action and a hiding action is incorporated or contained in the organic resin coating layer. This packaging material is excellent in processability, corrosion resistance, storability, appearance characteristics and safety.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.