Method for making thermochromic writing instruments having a reptilian texture
US5618581A · kind A · utility
5Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 1, 1996 |
| Grant date | Apr 8, 1997 |
| Priority date | — |
| Expiry date | Jul 1, 2016 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24876
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A method for making thermochromic writing instruments having a reptilian texture includes the steps of: coating the writing instruments with liquid crystals; curing the coated writing instruments; coating the writing instruments with an acrylic polymer emulsion; curing the coated writing instruments; coating the writing instruments with a colloidal lacquer; curing the coated writing instruments; coating the writing instruments with a nitrocellulose lacquer; and curing the coated writing instruments.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.