Metal tube coating process
US6306468A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2000 |
| Grant date | Oct 23, 2001 |
| Priority date | — |
| Expiry date | Feb 25, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05D7/146
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
This invention teaches that the use of electron beam equipment and modified acrylic unsaturated coating compositions for free radical curing will reduce energy consumption for coating the exterior surface of tubing. The faster rate of polymerization of this coating composition allows for the replacement of a conventional oven or induction heater unit with an electron beam unit requiring much less floor space and generating much less heat. Pigmented coatings formulated according to this invention can be cured with an electron beam more efficiently than light radiation equipment and will meet the commercial coating requirements established by tube coaters. The application of the above specified type liquid coatings involves reduced maintenance costs and labor to operate as compared to powder coating systems and light radiation curing equipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.