Method for preparing a polyurethane foam comprising quaternary ammonium salt as antistatic agent
US3933697A · kind A · utility
15Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 30, 1974 |
| Grant date | Jan 20, 1976 |
| Priority date | — |
| Expiry date | Jul 30, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S260/21
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
An antistatic polyurethane foam contains quaternary ammonium salt as an antistatic agent. The quaternary ammonium salt is added either to a raw material for polyurethane foam or to a prepared polyurethane foam by causing the foam to be impregnated with a solution containing the quaternary ammonium salt and drying it.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.