Emulsion of water soluble dyes in a lipophilic carrier
US6530962B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Mar 11, 2003 |
| Priority date | — |
| Expiry date | Aug 31, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2984
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention herein provides for an improved dye composition for encapsulation in casing structures adapted for projectile motion and rupture upon contact with a target surface, such as paint balls. The dye composition adapted for use in an impact-rupturable capsule of the invention comprises a water-soluble dye and a lipophilic carrier having an oil and an emulsifier, said emulsifier comprising ethoxylated mono- and diglycerides. The invention further provides for an impact-rupturable capsule containing the dye composition. Advantages of the dye composition of the invention include improved consistency and reduced separation of ingredients; greater viscosity and thickness; greater “smearability” and splattering of dye on target surface upon impact and rupture of the casing; and greater water solubility and improved machine washability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.