Adhisive-filler polymer film composite
US5753358A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1996 |
| Grant date | May 19, 1998 |
| Priority date | — |
| Expiry date | Jan 25, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31931
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An adhesive composite material comprises an expanded fluoropolymer with nodes and interconnected fibrils, the fluoropolymer having a void volume which is at least partially filled with a mixture containing a thermoset or thermoplastic adhesive and a particulate inorganic filler. The composite material contains sufficient adhesive and filler such that the composite contains between about 5 to about 40 volume percent expanded fluoropolymer; 5-85 volume percent inorganic filler; and 10-95 volume percent of adhesive and filler, the adhesive and filler being contained within the voids of the expanded fluoropolymer. In the composite, the ratio of the mean flow pore size of the expanded fluoropolymer to the largest particle size of the filler is at least about 2 and/or the ratio of the minimum pore size of the expanded fluoropolymer to the largest particle size of the filler is at least about 1.4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.