Coatings and films as mandrel sealer
US10099407B2 · kind B2 · utility
0Cited by
1References
1Claims
0Family size
Inventor
Key dates
| Filing date | May 19, 2015 |
| Grant date | Oct 16, 2018 |
| Priority date | — |
| Expiry date | Feb 9, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2009/005
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
It is sometimes advantageous to coat or seal the mandrel before laying on, coating, or wrapping the mandrel with composite plastic material. This invention provides improved coating with improved function that is easily removable from the cured product. The effective coating materials are applied directly to the mandrel as a coat or as a film or tape. Thermally expandable coat or film also reduces manufacturing costs for composite plastic products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.