Method of preparing oil absorbing fibers
US8110525B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2009 |
| Grant date | Feb 7, 2012 |
| Priority date | — |
| Expiry date | Sep 3, 2030 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F1/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of preparing oil-absorbing fibers by: a) fully dissolving a dispersant and a deionized water in a reaction vessel, adding a methacrylate monomer and an initiator to a reactor and stirring to form a homogenous solution, transferring the homogenous solution into the reaction vessel, charging nitrogen gas, stirring, raising temperature to 70-80° C., allowing to react for 2-6 hours, raising temperature to 90-100° C., allowing to react for 2-4 hours, collecting a resultant product, washing, drying, and obtaining a white resin; b) drying the white resin, mixing with a swelling agent, and sealing the mixture at room temperature for 48-96 hours to yield a homogenous gel; c) grinding the gel completely, spinning by a plunger spinner, and coagulating with a coagulation bath to yield an as-spun oil-absorbing fiber; and d) drawing the as-spun oil-absorbing fiber with a draw ratio of 2-6 to yield oil-absorbing fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.