Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
COPPER/AMINE OXIDE WOOD PRESERVATIVES
Document Type and Number:
WIPO Patent Application WO/2000/071311
Kind Code:
A2
Abstract:
The present invention provides a composition comprising an amine oxide and an aqueous copper amine complex. Another embodiment of the present invention is a method for preserving and/or waterproofing a wood substrate by contacting the composition with the wood substrate. Yet another embodiment is an article comprising a wood substrate and the composition of the present invention. This composition has high efficacy against fungi, including copper tolerant fungi such as brown rot and soft rot, and is phase stable at high concentrations. Additionally, the amine oxide in the composition may impact waterproofing properties. The composition of the present invention is halide free and is environmentally friendly.

Inventors:
WALKER LEIGH E (US)
Application Number:
PCT/US2000/014371
Publication Date:
November 30, 2000
Filing Date:
May 24, 2000
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
LONZA AG (US)
WALKER LEIGH E (US)
International Classes:
A01N33/04; B27K3/52; A01N33/16; A01N59/20; B27K3/50; C07C291/04; (IPC1-7): B27K/
Domestic Patent References:
WO1997001423A11997-01-16
WO1998031518A21998-07-23
Foreign References:
US4382105A1983-05-03
DE3743821A11989-07-06
EP0370182A21990-05-30
Attorney, Agent or Firm:
Lessler, Jay P. (NY, US)
Download PDF:
Claims:
WHAT IS CLAIMED IS:
1. A composition comprising: (a) an amine oxide, and (b) an aqueous copper amine complex.
2. The composition of claim 1, wherein the amine oxide is trialkylamine oxide ; Nalkylated cyclic amine oxides; a dialkylpiperazine diNoxide; a dialkylbenzylamine oxide; a fatty acylaminopropyldimethylamine oxide; a diamine dioxide; a triamine trioxide; and any combination of any of the foregoing.
3. The composition of claim 2, wherein the trialkylamine oxide has the formula R'RCH3N0, wherein R'is a linear, branched, cyclic, or any combination thereof C6 to C40 saturated or unsaturated group; and R2 and R3 are independently linear, branched, cyclic, or any combination thereof C, to C40 saturated or unsaturated groups.
4. The composition of claim 3, wherein R'is a linear, branched, cyclic, or any combination thereof C8 to C22 saturated or unsaturated group; and R2 and R3 are independently linear, branched, cyclic, or any combination thereof C, to C22 saturated or unsaturated groups.
5. The composition of claim 3, wherein the trialkylamine oxide is an alkyldimethylmine oxide having the formula R' (CH3) 2NO, wherein R'is a linear, branched, cyclic, or any combination thereof C6 to C40 saturated or unsaturated group.
6. The composition of claim 5, wherein R'is a a linear, branched, cyclic, or any combination thereof Cg to C22 saturated or unsaturated group.
7. The composition of claim 6, wherein R'is a C, to C, 4 saturated or unsaturated linear, branched, cyclic, or any combination thereof alkyl group.
8. The composition of claim 6, wherein R'is a C, 6 to C, g saturated or unsaturated linear, branched, cyclic, or any combination thereof alkyl group.
9. The composition of claim 6, wherein R'is a C, o saturated or unsaturated linear, branched, cyclic, or combination thereof alkyl group.
10. The composition of claim 1, wherein the copper amine complex comprises a water soluble amine.
11. The composition of claim 10, wherein the amine is selected from the group consisting of ammonia, ethanol amine, diethanolamine, triethanolamine, diethylamine, and ethylene amine.
12. The composition of claim 1, wherein the copper amine complex is an ammonium/copper complex, an ethanolamine/copper complex, a diethanolamine/copper complex, a triethanolamine/copper complex, a diethylamine/copper complex, an ethylene diamine/copper complex, or any combination of any of the foregoing.
13. The composition of claim 1, wherein the composition comprises a preservative enhancing or waterproofing effective amount of amine oxide or a combination thereof.
14. The composition of claim 1, wherein the copper amine complex comprises from about 0.05 to about 5.0% by weight of copper (expressed as copper oxide), based upon 100% weight of total composition.
15. The composition of claim 1, wherein the composition comprises a biocidally effective amount of copper amine complex.
16. The composition of claim 1, wherein the copper amine complex comprises from about 0.5 to about 1.0% by weight of copper oxide, based upon 100% weight of total composition.
17. The composition of claim 1, wherein the weight ratio of copper oxide to amine oxide ranges from about 1: 0.1 to about 1: 5.
18. The composition of claim 17, wherein the weight ratio ranges from about 1: 0.5 to about 1: 2.
19. The composition of claim 1 further comprising a fatty amine.
Description:
INTERNATIONALSEARCHREPORT Inte Jonal AppilcationNo Intormation on patent family members PC T/U S 00/14371 PatentdocumentPublication Patent family Publication citedinsearchreportdatemember(s)date US4382105A03-05-1983US4357163A02-11-1982 AU7998982A03-03-1983 BR8202994A10-05-1983 CA1165505A17-04-1984 US4379810A12-04-1983 ZA8200603A28-09-1983 WO9701423A16-01-1997CA2222546A16-01-1997 EP0837761A29-04-1998 DE 3743821 A 06-07-1989 NONE WO9831518A23-07-1998US5833741A10-11-1998 AU719078B04-05-2000 AU6036398A07-08-1998 CN1263489T16-08-2000 EP0960007A01-12-1999 JP2000507895T27-06-2000 NO993335A14-09-1999 EP0370182A30-05-1990DE3839848A31-05-1990 AT104897T15-05-1994 DE58907571D01-06-1994