Aqueous polyamide resin dispersion and process for producing the same
US6777488B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 19, 2001 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Oct 19, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10N2050/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The aqueous dispersion of polyamide resin of the present invention comprises dispersed polyamide resin particles, basic material and water. The dispersed polyamide resin particles have a weight-average diameter of 0.1-10 &mgr;m. The ratio of end carboxyl groups to end amino groups in the polyamide resin is between 60/40 and 100/0. The amount of said basic material added is 0.2-3.0 mol per mol of end carboxyl groups. Such an aqueous dispersion of polyamide resin can be manufactured by adding the polyamide resin to an aqueous dispersion medium containing 0.2-3.0 mol of basic material per mol of end carboxyl groups in the polyamide resin.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.