Method for grafting polymers to polytetrafluoroethylene, and grafted composites thereof
US4661383A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 4, 1986 |
| Grant date | Apr 28, 1987 |
| Priority date | — |
| Expiry date | May 4, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31544
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A novel method for grafting polymers to polytetrafluoroethylene (PTFE) and composites grafted according to this method are described. PTFE at a surface of a substrate is reduced to polyacetylene (PA) and then doped with a suitable dopant. The doped PA/PTFE substrate is then contacted with a polymerizable monomer precursor capable of polymerizing with doped PA, to form the polymer of said precursor chemically bonded to the surface of the PA/PTFE substrate. A grafted composite with layers of varying thickness may be formed by further contacting the substrate bonded to polymer with preformed polymer of a similar cohesive energy density.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.