Thermal insulation containing corrugated nonwoven web of polymeric microfiber
US5639700A · kind A · utility
10Cited by
10References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1995 |
| Grant date | Jun 17, 1997 |
| Priority date | — |
| Expiry date | May 23, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/627
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Thermal insulation contains a corrugated nonwoven web and a means for retaining the shape of a corrugated web. The shape-retaining means is not coextensive with the corrugated nonwoven web and is secured to the valleys of the corrugations. The corrugated nonwoven web has a solidity of 0.1 or less and contains microfiber and crimped staple fibers that have a percent crimp of at least 15 percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.