Artificial snowseed and method for making artificial snow
US5660935A · kind A · utility
7Cited by
1References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Mar 17, 1995 |
| Grant date | Aug 26, 1997 |
| Priority date | — |
| Expiry date | Mar 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An artificial snowseed in the form of granules of a super water-absorbing polymer already coated with a fluorine-containing material and/or a silicone oil. The granules can retain the original spherical form after absorption of water without sticking to each other. Further the present invention provides a method for making artificial snow comprising freezing the above artificial snowseed after absorption of water.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.