Pentachlorophenol/borate compositions and uses thereof
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A01N-031/10
A01N-055/08
B27K-003/08
B27K-003/16
B27K-003/50
B27K-003/34
B27K-003/40
출원번호
US-0366594
(2011-12-30)
등록번호
US-9681660
(2017-06-20)
국제출원번호
PCT/IB2011/003293
(2011-12-30)
§371/§102 date
20140721
(20140721)
국제공개번호
WO2013/098579
(2013-07-04)
발명자
/ 주소
Murray, Gordon
출원인 / 주소
Stella-Jones Inc.
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
0인용 특허 :
30
초록▼
Disclosed is a wood preservative composition comprising: an ester of boric acid; pentachlorophenol (PCP); and American Wood Preservative Association's (AWPA) P9 Type A solvent. The composition is useful for reducing insect and microbial decay in wood. Further disclosed are methods of making and usin
Disclosed is a wood preservative composition comprising: an ester of boric acid; pentachlorophenol (PCP); and American Wood Preservative Association's (AWPA) P9 Type A solvent. The composition is useful for reducing insect and microbial decay in wood. Further disclosed are methods of making and using such compositions.
대표청구항▼
1. A method of treating wood, comprising the steps of: a) immersing the wood in a wood treatment composition; andb) pressure impregnating the immersed wood at a pressure of about 100 to 170 psi and a temperature of about 100 to 170° F.;wherein the wood treatment composition comprises (i) about 3 to
1. A method of treating wood, comprising the steps of: a) immersing the wood in a wood treatment composition; andb) pressure impregnating the immersed wood at a pressure of about 100 to 170 psi and a temperature of about 100 to 170° F.;wherein the wood treatment composition comprises (i) about 3 to 12 wt. % pentachlorophenol (PCP); (ii) at least about 3 wt. % of a borate ester, which comprises a monoalkanolamine borate ester; and (iii) at least about 76 wt. % of an AWPA P9 Type A solvent, which comprises diesel and biodiesel; andthe wood treatment composition is greater than 98% w/w free of water and is a substantially homogenous solution after storage at a temperature of 15 to 35° C. for one month. 2. The method of claim 1, wherein the borate ester comprises a monoalkanolamine monoethanolamine ester of boric acid. 3. The method of claim 1, wherein the AWPA P9 Type A solvent comprises at least about 50 wt % of the diesel, and about 1 to 50 wt. % of the biodiesel. 4. The method of claim 1, wherein the biodiesel comprises canola methyl esters, cotton seed methyl esters, corn oil methyl esters, palm oil methyl esters, and/or soy oil methyl esters. 5. The method of claim 1, wherein the AWPA P9 Type A solvent has an open-cup flashpoint of at least 66° C., a viscosity of at least about 37.5 Saybolt Universal Seconds at 100° F., and a specific gravity of at least about 0.91. 6. A method of treating wood, comprising the steps of: a) immersing the wood in a wood treatment composition; andb) exposing the immersed wood from step (a) to conditions which cause boron to migrate into the interior of the wood; wherein the wood treatment composition comprisesi) pentachlorophenol (PCP);ii) borate ester; andiii) American Wood Preservative Association's (AWPA) P9 Type A solvent; and the wood treatment composition is greater than 98% w/w free of water and is a substantially homogenous solution after storage at a temperature of 15° C. to 35° C. for one month; wherein the borate ester comprises a monoalkanolamine borate ester. 7. The method of claim 6, wherein the wood treatment composition comprises a reaction product of a mixture comprising C2-C6 monoalkanolamine and boric acid. 8. The method of claim 6, wherein the borate ester comprises an alkanol, alkenol, and/or alkanolamine ester of boric acid. 9. The method of claim 6, wherein the borate ester comprises a monoethanolamine ester of boric acid. 10. The method of claim 9, wherein the monoethanolamine ester of boric acid is a monoester, diester and/or triester of boric acid. 11. The method of claim 6, wherein the wood treatment composition includes about 3 to 12 wt. % of the pentachlorophenol; and at least about 1 wt. % of an ester of boric acid. 12. The method of claim 6, wherein the AWPA P9 Type A solvent has an open-cup flashpoint of at least 66° C., a viscosity of at least about 37.5 Saybolt Universal Seconds at 100° F., and a specific gravity of at least about 0.91. 13. The method of claim 6, wherein the wood treatment composition further comprises boric acid. 14. The method of claim 6, wherein the wood treatment composition further comprises disodium octaborate tetrahydrate. 15. The method of claim 6, wherein the wood treatment composition comprises (i) about 3 to 12 wt. % of the pentachlorophenol; (ii) at least about 76 wt. % of the AWPA P9 Type A solvent; and (iii) a reaction product of a mixture comprising C2-C6 monoalkanolamine and boric acid, wherein the reaction product includes a C2-C6 monoalkanolamine ester of boric acid. 16. The method of claim 6, wherein the wood treatment composition comprises about 3 to 12 wt. % of the pentachlorophenol; and at least about 76 wt. % of the AWPA P9 Type A solvent. 17. The method of claim 6, wherein the borate ester comprises a monoethanolamine ester of boric acid. 18. The method of claim 6, wherein the wood treatment composition includes at least about 3 wt. % of the borate ester; at least about 76 wt. % of the AWPA P9 Type A solvent; and about 1 to 20 wt. % pentachlorophenol. 19. The method of claim 6, wherein the conditions which cause boron to migrate into the interior of the wood comprise pressure impregnation of the immersed wood. 20. The method of claim 19, wherein the immersed wood is pressure impregnated at a pressure of about 100 psi to about 170 psi and a temperature of about 100° F. to about 170° F. 21. The method of claim 19, wherein the pressure impregnation results in the wood having of boron content of at least about 0.11 pounds per cubic foot (pcf) Boric Acid Equivalent (BAE) of B2O3. 22. The method of claim 19, further comprising c) separating the treated wood from the treatment solution after the pressure impregnation; d) exposing the treated wood to an expansion bath; e) exposing the treated wood to a vacuum treatment after completion of the expansion bath. 23. The method of claim 22, wherein the AWPA P9 Type A solvent comprises diesel and biodiesel. 24. The method of claim 6, wherein the composition includes at least about 1 wt. % of an ester of boric acid; and about 1 to 20 wt. % pentachlorophenol. 25. The method of claim 6, wherein the conditions which cause boron to migrate into the interior of the wood result in the wood having of boron content of at least about 0.05 pcf BAE of B2O3. 26. The method of claim 6, wherein the conditions which cause boron to migrate into the interior of the wood comprise pressure impregnation of the immersed wood at a pressure of about 100 psi to about 170 psi and a temperature of about 100° F. to about 170° F.; and the wood treatment composition includes at least about 3 wt. % of the borate ester; at least about 76 wt. % of the AWPA P9 Type A solvent; and about 3 to 12 wt. % pentachlorophenol.
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