Floor covering with bitumen backing layer
US5366779A · kind A · utility
8Cited by
4References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 3, 1994 |
| Grant date | Nov 22, 1994 |
| Priority date | — |
| Expiry date | Feb 3, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/3707
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A floor covering having a bitumen composition as a backing layer, such as carpet tiles, which bitumen composition comprises straight run bitumen and a mixture of high density and low density polyethylene polymers blended and dispersed in the straight run bitumen as a continuous phase in an amount of up to about 12% by weight and which bitumen composition contains a minimum of about 40% by weight of a mineral filler material, such as limestone, and the bitumen composition having improved dimensional stability, adhesion, static loading and electrical conductivity and having lower cost and processing advantages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.