Process of making multifilament glass strand
US5002598A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 6, 1989 |
| Grant date | Mar 26, 1991 |
| Priority date | — |
| Expiry date | Jan 6, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2976
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The application discloses an apparatus and a process for the manufacture of continuous fibers by mechanical attenuation. It is especially useful in obtaining a strand composed of a mixture of filaments of differing cross sections in constant and definite proportion. This is obtained by employment of a bushing having a lower surface comprising a multiplicity of fiberizing centers of varying configurations, each fiberizing center being formed by a zone perforated by a group of orifices from which at least one filament can be attenuated in a stable manner. The strands produced are particularly adapted for the reinforcement of plastic materials.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.