Copolyamide adhesive compositions containing asymmetric aliphatic residues
US5321120A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 26, 1993 |
| Grant date | Jun 14, 1994 |
| Priority date | — |
| Expiry date | Jan 26, 2013 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J177/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Copolyamide adhesive compositions have a diamine component and a dicarboxylic acid component. The diamine component includes the reaction residues of at least two diamines selected from non-cyclic aliphatic diamines, cycloaliphatic diamines, and aromatic diamines. The dicarboxylic acid component includes the reaction residues of at least two dicarboxylic acids selected from non-cyclic aliphatic dicarboxylic acids, cycloaliphatic dicarboxylic acids, and aromatic dicarboxylic acids. One of the residues is mono-alkyl branched asymmetric. The composition is free from aliphatic omega aminocarboxylic acids or lactams having 12 carbon atoms or less. When one of the dicarboxylic acids is a polymerized fatty acid, the diamine component does not contain a cycloaliphatic diamine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.