Fusible water-soluble films for fabricating three-dimensional objects
US6966960B2 · kind B2 · utility
38Cited by
30References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2003 |
| Grant date | Nov 22, 2005 |
| Priority date | — |
| Expiry date | Mar 24, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A material for use in fabricating three-dimensional objects includes a mixture of thermoplastic particles and a water-soluble polymer matrix formed as a film that is fusible into a non-water soluble state when exposed to heating. The film further includes a surfactant system bound to the thermoplastic particles, the surfactant system providing an inversion property such that the thermoplastic particles are hydrophilic but, upon a fusing of the film, become hydrophobic as the surfactant become incorporated into the bulk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.