Nylon polymers having a low coefficient of friction and method for the manufacture thereof
US8883917B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2012 |
| Grant date | Nov 11, 2014 |
| Priority date | — |
| Expiry date | Apr 17, 2033 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01F6/60
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A method for the preparation of a polyamide-based composition provides for the substantially uniform dispersion of particulate silica and, optionally, mineral oil and any other lubricant additive, within a polyamide matrix. The method includes mixing particulate silica, and optionally, mineral oil and other lubricant additives, to one or more polyamide-producing monomers, and water, to form an emulsion or suspension wherein the particulate silica (and mineral oil and other lubricant additives, when added) are substantially uniformly dispersed therein, and then in situ polymerizing the monomer(s) to provide a polyamide matrix wherein the particulate silica, and optional mineral oil and other optional lubricant additives, remain substantially uniformly dispersed in the resulting polyamide matrix to form the polyamide-based composition. A polyamide-based composition comprising a polyamide matrix having silica and optionally, mineral oil and other lubricant additives, substantially uniformly dispersed within the polyamide matrix is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.