Method of sizing polyester yarn
US4394128A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 1980 |
| Grant date | Jul 19, 1983 |
| Priority date | — |
| Expiry date | Oct 31, 2000 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3049
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Taught is a method of sizing polyester yarn for weaving comprising the steps of applying thereto a latex having an acid pH and of a free radical initiated vinyl polymer having a weight average molecular weight of from about 300,000 to about 2,500,000, said polymer in dried film form being hydrophobic and not redispersible in a solution at a pH of from about 2 to 7 but redispersible by an aqueous alkaline medium, said polymer being prepared from monomers consisting essentially of by weight, 45-65% butyl acrylate a total of 28-45% styrene and/or methyl methacrylate and a total of 8-14% acrylic acid and/or methacrylic acid, and drying the yarn.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.