Waterproofing and preservative compositions and preparation thereof
US5855817A · kind A · utility
15Cited by
44References
88Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 9, 1997 |
| Grant date | Jan 5, 1999 |
| Priority date | — |
| Expiry date | Jul 9, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/662
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Polyhydroxyl and polyether hydroxyl esters of fatty acids and polyether hydroxides are provided as waterproofers. These waterproofers are also combined with quaternary ammonium compositions and a solvent in waterproofing, wood preservative systems. Preferred quaternary ammonium compounds have chloride, hydroxide, carbonate, carboxylate, or borate counter ions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.