Adhesive dual-component composition based on polyurethane
US10696879B2 · kind B2 · utility
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15Claims
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Assignee
Inventors
Key dates
| Filing date | Jul 10, 2017 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Jul 21, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2439/70
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The invention relates to an adhesive dual-component composition comprising a composition A based on a polyurethane prepolymer with cyclocarbonate terminations and a composition B based on a mixture comprising at least one diamine B1 comprising only two primary amine groups of the —CH2—NH2 type and at least one polyamine B2 comprising at least three primary amine groups of the —CH2—NH2 type. The invention also relates to a multilayer structure produced from the adhesive composition according to the invention and to the method for the production thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.