Polyurethane-based single-component hot-melt adhesives with improved initial cohesion
US5922805A · kind A · utility
9Cited by
1References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 15, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Jul 15, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to polyurethane-based hot-melt adhesives resulting from the polyaddition of a polyisocyanate, of a polyol and of a copolymer of ethylene, of vinyl acetate and of an ethylenically unsaturated monomer containing at least one primary hydroxyl group per mole. It also relates to a process for the preparation of the said adhesives. It also relates to the use of the adhesives for the adhesive bonding of flexible materials such as films.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.