Process for the preparation of highly viscous or heat distortion-resistant polyamide which is at least partially crosslinked with functional silane
US4647630A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 7, 1983 |
| Grant date | Mar 3, 1987 |
| Priority date | — |
| Expiry date | Nov 7, 2003 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/54
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Highly viscous or heat distortion-resistant at least partially crosslinked polyamides are disclosed along with the process for making them. The process comprises reacting, under anhydrous conditions, a polyamide melt with a silane of the following formula ##STR1## wherein n=0, 1, or 2, PA0 Z is individually an organic radical which may, together with other Z groups and the silicon atom, form rings, PA0 A is individually a moisture hydrolyzable radical which may, together with other A groups and the silicon atom, form rings, and PA0 Y is an organic radical containing a functional group which is capable of reacting with at least one of an amide, amino and carboxyl group of the polyamide to form a covalent bond, and then bringing the reaction product into contact with moisture to form the at least partially crosslinked polyamides.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.