Non-hollow adsorbent porous fiber
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 2, 1996
Grant Date -
N/A
app pub date -
Jun 3, 1992
filing date -
Oct 31, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A porous fiber having sufficient chemical resistance to a variety of substances to be adsorbed, and having a large specific surface area and a large void percentage. The porous fiber provided by the present invention features a main fiber body formed of a high-density polyethylene having a melt flow rate of 0.3 to 20 g/10 minutes and numerous pores. The pores are formed by mixing the high-density polyethylene with a paraffin wax while they are melted, melt-spinning a fiber with an extruder at a draft ratio of 200 or less, stretching the fiber, heat-treating the stretched fiber, mechanically crimping it and then removing the paraffin wax. In the porous fiber, the main fiber body has a specific surface area of 20 m.sup.2 /g or more, the ratio of the pores to the main fiber body is 20% or more and the main fiber body has a size of not more than 50 denier.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully