Water-soluble dispersant which aids in the dispersion of polyester fibers during the preparation of a wet-laid nonwoven fiber mat
US5209823A · kind A · utility
7Cited by
11References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 10, 1990 |
| Grant date | May 11, 1993 |
| Priority date | — |
| Expiry date | Dec 10, 2010 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H13/24
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A water-soluble dispersant which aids in the dispersion of polyester fibers during the preparation of a wet-laid nonwoven fiber mat, the water-soluble dispersant comprising: PA1 polyethylene glycol in an amount greater than about 80% by weight of the water-soluble dispersant: PA1 a phthalic acid ester moiety; and PA1 a monomeric glycol, wherein the phthalic acid ester moiety and the monomeric glycol are present in an amount less than about 20% by weight of the water-soluble dispersant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.