Chemically treated glass fibers for reinforcing polymeric materials and processes
US4518653A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1983 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Dec 23, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31518
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Glass fiber strands are produced which have a reduced tendency for strand to strand adhesion and good dispersibility or wettability in uncured polymeric materials for the production of glass fiber reinforced plastics. The glass fibers have a dried residue of an aqueous chemical treating composition. The aqueous chemical treating composition has a film forming polymeric system, gamma methacryloxy alkyltrialkoxy silane and a glass fiber lubricant in an effective lubricating amount. The film forming polymeric system has an epoxy-containing polymer or copolymer, a non-tacky film forming polymer, and polyvinyl pyrrolidone of which are aqueous soluble, dispersible or emulsifiable. The amount of the epoxy-containing polymer or copolymer is in the range of about 50 to about 70 weight percent of the solids of the aqueous chemical treating composition while the amount of the polyvinyl pyrrolidone does not exceed 25 weight percent of the solids of the aqueous chemical treating composition and the amount of the non-tacky film forming polymer is in the range of about 5 to about 20 weight percent of the aqueous chemical treating composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.