CA2416297A1 - Mixed solubility borate preservative - Google Patents

Mixed solubility borate preservative Download PDF

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Publication number
CA2416297A1
CA2416297A1 CA002416297A CA2416297A CA2416297A1 CA 2416297 A1 CA2416297 A1 CA 2416297A1 CA 002416297 A CA002416297 A CA 002416297A CA 2416297 A CA2416297 A CA 2416297A CA 2416297 A1 CA2416297 A1 CA 2416297A1
Authority
CA
Canada
Prior art keywords
borate
solubility
lignocellulosic
solubility borate
preservative composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002416297A
Other languages
French (fr)
Other versions
CA2416297C (en
Inventor
Jeffrey D. Lloyd
Mark J. Manning
Frederick M. Ascherl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
US Borax Inc
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2416297A1 publication Critical patent/CA2416297A1/en
Application granted granted Critical
Publication of CA2416297C publication Critical patent/CA2416297C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N59/00—Biocides, pest repellants or attractants, or plant growth regulators containing elements or inorganic compounds
    • A01N59/14—Boron; Compounds thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/25—Web or sheet containing structurally defined element or component and including a second component containing structurally defined particles
    • Y10T428/258—Alkali metal or alkaline earth metal or compound thereof
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31942—Of aldehyde or ketone condensation product
    • Y10T428/31949—Next to cellulosic
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31942—Of aldehyde or ketone condensation product
    • Y10T428/31949—Next to cellulosic
    • Y10T428/31953—Modified or regenerated cellulose
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31942—Of aldehyde or ketone condensation product
    • Y10T428/31949—Next to cellulosic
    • Y10T428/31957—Wood

Abstract

Preservative composition for lignocellulosic-based composites providing rapid and long-lasting protection against insect and fungal attack, in both low and high moisture environments, through the use of a combination of higher solubility and lower solubility borates. Pesticidal amounts of a lower solubility borate and a higher solubility borate are combined before or during their incorporation into a lignocellulosic-based composite. Useful low solubility borates includes copper borate, zinc borate and barium metaborate.
Useful high solubility borates includes boric acid, boric oxide, ammonium borate and alkali metal borates such as sodium borate. Some alkaline earth metal borates, including calcium borates, are of intermediate solubility and may be used effectively as either a low soluble or high soluble borate depending on the combination used.

Claims (22)

1. A preservative composition for lignocellulosic-based composites comprising a higher solubility borate and a lower solubility borate, wherein said higher solubility borate is selected from the group consisting of high and intermediate solubility borates and said lower solubility borate is (a) selected from the group consisting of intermediate and low solubility borates if the higher solubility borate is a high solubility borate, or (b) a low solubility borate if the higher solubility borate is an intermediate solubility borate.
2. A preservative composition according to claim 1 wherein the higher solubility borate is selected from the group consisting of boric acid, boric oxide, ammonium borate and alkali metal borate.
3. A preservative composition according to claim 2 wherein the alkali metal borate is selected from the group consisting of borax pentahydrate, borax decahydrate, sodium pentaborate, disodium octaborate, and sodium metaborate.
4. A preservative composition according to claim 2 wherein the lower solubility borate is a low solubility borate selected from the group consisting of copper borate, zinc borate and barium metaborate.
5. A preservative composition according to claim 2 wherein the lower solubility borate is an intermediate solubility borate selected from the group consisting of calcium borate, magnesium borate, calcium magnesium borate and calcium sodium borate.
6. A preservative composition according to claim 1 wherein the lower solubility borate is selected from the group consisting of copper borate, zinc borate and barium metaborate.
7. A preservative composition according to claim 6 wherein the higher solubility borate is an intermediate solubility borate selected from the group consisting of calcium borate, magnesium borate, calcium magnesium borate and calcium sodium borate.
8. A preservative composition according to claim 1 wherein the weight ratio of the lower solubility borate to the higher solubility borate is in the range of from about 0.1:1 to about 9:1.
9. A preservative composition according to claim 8 wherein the weight ratio of the lower solubility borate to the higher solubility borate is in the range of from about 1:1 to about 3:1.
10. A preservative composition for lignocellulosic-based composites comprising a first borate which provides rapid initial preservative protection against insect and fungal attack and a second borate which provides long lasting preservative protection.
11. A lignocellulosic-based composite having resistance against insect and fungal attack which contains lignocellulosic-based furnish, resin binder and a pesticidal amount of a preservative composition comprising a first borate which provides rapid initial preservative protection and a second borate which provides long lasting preservative protection.
12. A lignocellulosic-based composite according to claim 11 wherein the first borate is a higher solubility borate and the second borate is a lower solubility borate.
13. A lignocellulosic-based composite according to claim 11 wherein the weight percent of the preservative composition is at least about 0.05% of the composite.
14. A lignocellulosic-based composite according to claim 11 wherein the weight percent of the preservative composition is in the range of from about 0.1% to about 4% of the composite.
15. A lignocellulosic-based composite according to claim 14 wherein the weight percent of the preservative composition is up to about 1% of the composite.
16. A lignocellulosic-based composite having resistance against insect and fungal attack which comprises pesticidal amounts of a higher solubility borate and a lower solubility borate, wherein said higher solubility borate is selected from the group consisting of high and intermediate solubility borates and said lower solubility borate is (a) selected from the group consisting of intermediate and low solubility borates if the higher solubility borate is a high solubility borate, or (b) a low solubility borate if the higher solubility borate is an intermediate solubility borate.
17. A lignocellulosic-based composite according to claim 16 wherein the composite comprises multiple layers and the higher solubility borate and lower solubility borate are incorporated into different layers.
18. A method for protecting a lignocellulosic-based composite against insect and fungal attack comprising incorporating into the composite a pesticidal amount of a preservative composition comprising a higher solubility borate and a lower solubility borate.
19. A method for protecting a multi-layered lignocellulosic-based composite against insect and fungal attack comprising incorporating a first borate into an inner layer and a second borate into at least one outer layer, wherein said first and second borates are of different solubilities.
20. The method according to claim 19 wherein the first borate is a higher solubility borate and the second borate is a lower solubility borate.
21. In the method for forming a lignocellulosic-based composite which is resistant to insect and fungal attack, the improvement which comprises incorporating a pesticidal amount of a preservative composition comprising a higher solubility borate and a lower solubility borate, wherein said higher solubility borate is selected from the group consisting of high and intermediate solubility borates and said lower solubility borate is (a) selected from the group consisting of intermediate and low solubility borates if the higher solubility borate is a high solubility borate, or (b) a low solubility borate if the higher solubility borate is an intermediate solubility borate.
22. A composite board comprising lignocellulosic-based furnish, a thermoplastic binder and a preservative amount of the composition according to claim 1.
CA2416297A 2000-07-17 2001-07-16 Mixed solubility borate preservative Expired - Lifetime CA2416297C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US21895400P 2000-07-17 2000-07-17
US60/218,954 2000-07-17
PCT/US2001/022391 WO2002006417A1 (en) 2000-07-17 2001-07-16 Mixed solubility borate preservative

Publications (2)

Publication Number Publication Date
CA2416297A1 true CA2416297A1 (en) 2002-01-24
CA2416297C CA2416297C (en) 2011-01-25

Family

ID=22817169

Family Applications (1)

Application Number Title Priority Date Filing Date
CA2416297A Expired - Lifetime CA2416297C (en) 2000-07-17 2001-07-16 Mixed solubility borate preservative

Country Status (6)

Country Link
US (2) US7449130B2 (en)
JP (1) JP2004504329A (en)
AU (1) AU2001276942A1 (en)
CA (1) CA2416297C (en)
MY (1) MY136365A (en)
WO (1) WO2002006417A1 (en)

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Also Published As

Publication number Publication date
US8119031B2 (en) 2012-02-21
JP2004504329A (en) 2004-02-12
US7449130B2 (en) 2008-11-11
CA2416297C (en) 2011-01-25
WO2002006417A1 (en) 2002-01-24
US20090053509A1 (en) 2009-02-26
US20040041127A1 (en) 2004-03-04
MY136365A (en) 2008-09-30
AU2001276942A1 (en) 2002-01-30

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Effective date: 20210716