Thermochromic particle containing linear material
US4851282A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 1988 |
| Grant date | Jul 25, 1989 |
| Priority date | — |
| Expiry date | May 23, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Thermochromic particle-containing linear material product produced by the process characterized by dipping a core in the form of a monofilament or multifilament into a vinyl chloride resin sol composition having a thermochromic particulate material incorporated therein, the thermochromic particulate material being prepared by enclosing with a high polymer compound an electron-donating chromogenic substance, an electron-accepting substance for the chromogenic substance and a solvent having a boiling point of at least 150.degree. C. and selected from the group consisting of alcohols, amides, esters and azomethines and further covering the resulting product with a different high polymer compound; withdrawing the core from the sol composition; and heating the core to gel the sol composition and cover the core with the gelled composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.