Process for preparing molded product of thermochromic polyvinyl chloride
US4826550A · kind A · utility
54Cited by
12References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 1986 |
| Grant date | May 2, 1989 |
| Priority date | — |
| Expiry date | Nov 21, 2006 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/913
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A process for preparing a molded product of thermochromic polyvinyl chloride characterized by incorporating a thermochromic particulate material into a vinyl chloride plastisol comprising a vinyl chloride resin, plasticizer, stabilizer, lubricant and filler, and molding the resulting mixture. The thermochromic particulate material is prepared from particles of a non-thermoplastic resin having encapusated therein the three components of electron-donating chromogenic substance, electron-accepting substance and solvent by coating the particles with a hydrophilic high-molecular-weight compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.