Thermal insulation material comprising a mixture of down and synthetic fiber staple
US4167604A · kind A · utility
21Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 30, 1978 |
| Grant date | Sep 11, 1979 |
| Priority date | — |
| Expiry date | Jun 30, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2907
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An improved thermal insulation material comprising a carded web containing at least 10% natural down, the balance being crimped, hollow polyester staple. The carded web is uniformly impregnated with a thermosetting resin to form a bat which is employed as a filler for garments, sleeping bags and the like.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.