Non-heat cleaned fabrics and products including the same
US6809046B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2001 |
| Grant date | Oct 26, 2004 |
| Priority date | — |
| Expiry date | Mar 5, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The present invention provides non-heat cleaned glass fiber fabrics comprising resin compatible coatings that offer higher tensile strengths than corresponding fabrics that have been heat cleaned and silane finished. These fabrics can be used in a wide variety of applications, such as reinforcements for composites such as printed circuit boards.In one nonlimiting embodiment, the invention provides a non-heat cleaned fabric comprising a plurality of fiber strands in a warp direction and a fill direction, each fiber strand comprising a plurality of E-glass fiber, and having a resin compatible coating composition on at least a portion of a surface of at least one fiber strand, wherein the fabric has a tensile strength of at least 267 Newtons when measured in the warp direction or fill direction. Although not required, the fabric also has a tensile strength of at least 1.5 times that of a corresponding fabric that is heat cleaned by heating the corresponding fabric to a temperature of at least 380° C. for at least 60 hours and silane finished when measured in the warp direction or fill direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.