Pipe wrapping adhesive tape method
US4268334A · kind A · utility
14Cited by
6References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Oct 31, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31696
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
In a pipe coating made by wrapping the pipe with polyolefin tape and a butyl rubber based adhesive, the strength of the bond to the pipe at elevated temperature is improved by incorporating in the adhesive a cross-linking agent which is either 0.15-1% by weight of p-dinitrosobenzene or 1.0 to 2.5% of p-quinonedioxime, or both together with an activator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.