Carboxyl-containing polymer(s) with (2-oxo-1,3-dioxolan-4-yl)methyl groups-containing compound(s)
US6090891A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1998 |
| Grant date | Jul 18, 2000 |
| Priority date | — |
| Expiry date | May 11, 2018 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L63/00
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Curable compositions, which comprise the following components: PA1 (A) a polymer component consisting of one or more than one of the following components: PA2 polymers based on acrylate monomers and/or methacrylate monomers containing free carboxyl groups, and carboxyl-terminated polyesters; PA1 (B) a crosslinker for component (A) selected from the group consisting of: PA2 (B1) one or more than one compound having a molecular weight of less than 800 and containing at least two (2-oxo-1,3-dioxolan-4-yl)methyl groups per molecule, and PA2 (B2) a mixture consisting of one or more than one compound having a molecular weight of less than 800 and containing at least two (2-oxo-1,3-dioxolan-4-yl)methyl groups per molecule, and of one or more than one epoxy resin, at least 60 percent of the total number of (2-oxo-1,3-dioxolan-4-yl)methyl groups and epoxy groups of the mixture being (2-oxo-1,3-dioxolan-4-yl)methyl groups; PA1 (C) a catalyst for accelerating the crosslinking reaction between the components (A) and (B), and PA1 (D) a solvent for the components (A), (B) and (C); the molar ratio of free carboxyl groups to the total number of (2-oxo-1,3-dioxolan-4-yl)methyl groups and epoxy grou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.