Waterproofing and preservative compositons for wood
US5833741A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 1997 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Jan 16, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB27K2240/70
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides a waterproofing wood preservative system comprising a waterproofer selected from the group consisting of an alkyl amine oxide, an alkyl acetoacetate, and a waterproofing quaternary ammonium compound and a biocide comprising at least one biocidal quaternary ammonium compound wherein said waterproofing quaternary ammonium compound is a C.sub.12 -C.sub.30 alkyl or C.sub.6 -C.sub.20 aryl-substituted alkyl, C.sub.12 -C.sub.30 alkyl quaternary ammonium composition and said biocidal quaternary ammonium compound is a C.sub.8 -C.sub.12 alkyl or C.sub.6 -C20 aryl-substituted alkyl, C.sub.8 -C.sub.10 alkyl quaternary ammonium composition. Said wood preservative system offers protection against both biological and physical decomposition of wood, as for example, that occurring in long term-weathering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.