Acid dye stain-resistant fiber-forming polyamide composition containing masterbatch concentrate containing reagent and carrier
US6117550A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 22, 1997 |
| Grant date | Sep 12, 2000 |
| Priority date | — |
| Expiry date | Oct 22, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31909
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A composition for producing acid dye stain-resistant fibers includes a fiber-forming polymide, a polymer and a masterbatch concentrate which itself includes a reagent and a carrier. The reagent can be an alkal metal, alkaline earth metal or transition metal salt of 5-sulfoisophthalic acid. The carrier can be (A) a terpolymer of an alpha-monoolefin, ethylene-.alpha.,.beta. unsaturated carboxylic acid ester and an internal anhydride of an ethlenically unsaturated carboxylic acid. It can alternatively be (B) a semi-crystalline thermoplastic polyester, (C) a semi-crystalline thermoplastic polyamide, or mixtures of (B) and (C). The polymer in the composition can be (A) and mixtures of (A) and (B) and/or (C).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.