Method for producing treated glass cloth
US5236777A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1990 |
| Grant date | Aug 17, 1993 |
| Priority date | — |
| Expiry date | Oct 29, 2010 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/2992
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a method for producing a glass cloth which is suitable as a reinforcing material for making resin laminates and which comprises subjecting filaments of glass fibers to a sizing treatment with a sizing agent containing at least one water-soluble film forming agent selected from the group consisting of an amine-modified epoxy resin, an ethylene oxide-added epoxy resin and ethylene oxide-added bisphenol A as film forming component, forming glass yarns from the thus treated filaments, weaving the glass yarns to make a glass cloth, washing the glass cloth with water until the loss of ignition of the sizing agent to the glass cloth reaches 0.25% by weight or less, and then treating this glass cloth with a solution of a surface treating agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.