Natural tourmaline anion fiber and filter and producing method
US8231968B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2006 |
| Grant date | Jul 31, 2012 |
| Priority date | — |
| Expiry date | Jun 25, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2969
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention provides to a method of producing fiber from tourmaline anion fiber; of which, polypropylene or polyethylene chip, TPE and submicrometer tourmaline particle are prepared and then rolled into submicrometer tourmaline agglomerate through granulation by double screw; then, take submicrometer tourmaline agglomerate and polypropylene or polyethylene chip, of which the content of tourmaline agglomerate accounts for 1˜10% of gross weight, and TPE for 1˜40% of gross weight; tourmaline agglomerate and polypropylene or polyethylene are melted into composite fiber or filter material via spinning, such that the fiber or filter material can yield anion and present outstanding gas permeability and mechanical property.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.