Processes to produce short cut microfibers
US8871052B2 · kind B2 · utility
32Cited by
445References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Nov 28, 2032 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/18
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A process for separating a first mother liquor stream is provided. The process comprises: separating a first mother liquor stream in a second solid liquid separation zone to produce a secondary wet cake stream and a second mother liquor stream; wherein the first mother liquor stream comprises water non-dispersible microfiber, water, and water dispersible sulfopolyester; wherein the second mother liquor stream comprises water and water dispersible sulfopolyester; and wherein the secondary wet cake stream comprises water non-dispersible polymer microfiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.