Method of bonding glass fibers or other substrates to various polymers by oxidizing the molten polymer surface, and articles produced thereby
US4702956A · kind A · utility
12Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Dec 12, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2025
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The surface of a molten polymer is treated with a flame as the polymer is extruded; the polymer is co-calendered with a substrate as a fibrous web immediately downstream from the extruder and the flame. Articles so treated exhibit superior bond strengths. In one embodiment, both the polymer and the web are treated with a flame prior to the step of co-calendering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.