One-component hot melt polyurethane adhesive
US11795355B2 · kind B2 · utility
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11Claims
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Key dates
| Filing date | Aug 5, 2019 |
| Grant date | Oct 24, 2023 |
| Priority date | — |
| Expiry date | Jun 30, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J2301/306
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
One-component, moisture-curable polyurethane adhesives exhibit excellent handling strength before being fully cured, and excellent creep properties after curing. The adhesives include an isocyanate-terminated prepolymer made from polyols that include a crystalline polyester and hydroquinone bis (2-hydroxyethyl) ether, and a polyoxazolidine compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.