Anti-corrosive covering sheet
US4499136A · kind A · utility
15Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 10, 1983 |
| Grant date | Feb 12, 1985 |
| Priority date | — |
| Expiry date | Jun 10, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2826
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An anti-corrosive covering sheet for wrapping around a metal pipe such as a steel pipe comprising a heat-shrinkable plastic sheet, an adhesive layer and an anti-corrosive layer laminated in order, in which PA0 the adhesive layer comprises a hot-melt adhesive material having a melting temperature of not lower than 50.degree. C. and containing 30-80% by weight of an adhesive olefin copolymer; and PA0 the anti-corrosive layer contains an anti-corrosive agent and has a thickness in the range of 1-10 micron.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.