Non-asbestos flexible sheet material
US5527599A · kind A · utility
9Cited by
3References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | May 24, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2992
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Non-asbestos flexible sheet material suitable for use in gaskets (e.g., automobile exhaust manifold gaskets) operating at high temperature (e.g., 500.degree.-700.degree. C.) is made by impregnating a non-woven tissue of glass or like fiber stable at 700.degree. C. with an aqueous slurry of inorganic filler, particularly a clay, said aqueous slurry including a dispersed elastomeric binder (e.g., an acrylic) and a dispersed or dissolved binder (e.g., colloidal silica) which is essentially inorganic and is effective above 300.degree. C. The impregnated tissue is then dried.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.