Method for preparing tufted pile carpet and adhesive therefor
US4844765A · kind A · utility
41Cited by
22References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 14, 1987 |
| Grant date | Jul 4, 1989 |
| Priority date | — |
| Expiry date | Oct 14, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23993
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Lamination of a tufted, primary carpet backing to a secondary backing is conducted using a composite hot melt adhesive in sheet form. The composite adhesive overcomes the unfavorable temperature-viscosity gradient within the carpet structure during the lamination process, yielding tufted pile carpets with good tuft encapsulation, tuft bind strength and delamination strength. Also disclosed are hot melt adhesive compositions suitable for use in sheet form in such a process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.