Water-based vacuum forming laminating adhesive
US5652299A · kind A · utility
12Cited by
4References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 20, 1996 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Sep 20, 2016 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2666/36
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A water-based vacuum forming laminating adhesive includes an ionic water-dispersed polyurethane, a carbodiimide and/or an aziridine, and optionally a vinyl acetate polymer. The polyurethane is characterized by a high polydispersity index, which provides a combination of adhesion and thermal stability. The polyurethane is made by chain extending an isocyanate functional urethane prepolymer with polyamine and ketimine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.