Latent two-part polyurethane adhesives
US10400144B2 · kind B2 · utility
0Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 14, 2016 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Nov 16, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2475/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Two-component polyurethane adhesives include a polyol component and a polyisocyanate component. The polyol component includes a polyether polyol and specific amount of an aliphatic diol chain extender. The polyisocyanate component includes an isocyanate prepolymer made by reacting an aromatic polyisocyanate with a polyether. The adhesive has an excellent combination of a prolonged open time followed by curing to form a strong adhesive bond. The adhesive is especially useful for bonding carbon fiber-reinforced plastics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.