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(12) United States Patent (10) Patent No.: US 8,168,304 B2 Zhang Et Al

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(12) United States Patent (10) Patent No.: US 8,168,304 B2 Zhang Et Al USOO81683 04B2 (12) United States Patent (10) Patent No.: US 8,168,304 B2 Zhang et al. (45) Date of Patent: May 1, 2012 (54) MICRONIZED WOOD PRESERVATIVE AOIN 59/6 (2006.01) FORMULATIONS COMPRISING BORON AOIN 59/20 (2006.01) COMPOUNDS C09K 5/4 (2006.01) if C09K 5/6 (2006.01) (75) Inventors: in Zhang. Getty ille NYSUS Wenjin (S2) usic. ... 428/541; 428/535; 428/537.1; Zhang, Tonawanda, NY (US); Robert 424/630; 424/641; 106/18.13: 106/18.3; 427/180; M. Leach, Grand Island, NY (US) 427/181; 427/297; 427/393; 427/397; 427/440 (73) Assignee: Osmose, Inc., Buffalo, NY (US) (58) Field of Classification Search ............... 428/537.1, 428/535,541 (*) Notice: Subject to any disclaimer, the term of this See application file for complete search history. patent is extended or adjusted under 35 U.S.C. 154(b) by 0 days. (56) References Cited (21) Appl. No.: 12/691.707 U.S. PATENT DOCUMENTS (22) Filed: Jan. 21, 2010 1,388,513 A 8, 1921 Chandler (Continued) (65) Prior Publication Data FOREIGN PATENT DOCUMENTS US 2010/O1838.68A1 Jul. 22, 2010 CA 2103470 8, 1994 Related U.S. Application Data (Continued) (63) Continuation of application No. 1 1/354,726, filed on Feb. 15, 2006, now abandoned, which is a OTHER PUBLICATIONS continuation-in-part of application No. 1 1/126,839, Koch, C.C., Synthesis of Nanostructured Materials by Mechanical filed on May 11, 2005, now abandoned, said Milling: Problems and Opportunities, NanoStructured Materials, application No. 1 1/354,726 is a continuation-in-part of vol. 9, pp. 13-22, 1997. application No. 10/970,446, filed on Oct. 21, 2004, said application No. 1 1/354,726 is a (Continued) continuation-in-part of application No. 1 1/116,152, filed on Apr. 27, 2005, now abandoned, and a Primary Examiner — Joseph D Anthony continuation-in-part of application No. 10/821,326, (74) Attorney, Agent, or Firm — Covington & Burling LLP filed on Apr. 9, 2004, now Pat. No. 7,674,481. (60) Provisional application No. 60/570,659, filed on May (57) ABSTRACT 13, 2004, provisional application No. 60/568,485, The present invention provides wood preservative and flame filed on May 6, 2004, provisional application No. retardant compositions having low leachability comprising 60/565,585, filed on Apr. 27, 2004, provisional micronized boron compounds and, optionally, one or more application No. 60/461,547, filed on Apr. 9, 2003, organic biocides which may be micronized. Also provided is provisional application No. 60/518.994, filed on Nov. a method for applying the composition to wood and wood 11, 2003. products comprising impregnating the wood with the com (51) Int. Cl. position. B27K 3/22 (2006.01) B27K 3/38 (2006.01) 16 Claims, 3 Drawing Sheets Eric crorzec arc orate US 8,168,304 B2 Page 2 U.S. PATENT DOCUMENTS 2005/0265893 A1 12/2005 Leach et al. 2006, OO62926 A1 3/2006 Richardson et al. 1999.458 A 4/1935 Hollister 2006/0075921 A1 4/2006 Richardson et al. 3,007,844. A 1 1/1961 Schultz 2006.0075923 A1 4, 2006 Richardson 3,535,423. A 10/1970 Ordas 2006/0078686 A1 4/2006 Hodgege etetal al. 3,816,307 A 6/1974 Woods 2006/0086841 A1 4/2006 Richardson et al. 3,945,835. A 3/1976 Clarke et al. 2006/0257578 A1* 1 1/2006 Zhang et al. ............... 427,393.3 3,968,276 A * 7/1976 Allen ............................ 427,297 2011/009 1575 A1* 4/2011 Hayson etal 424,634 4,058,607 A 11, 1977 Hennart et al. 4,062.991 A 12/1977 Kyte et al. FOREIGN PATENT DOCUMENTS 4,142,009 A * 2/1979 Kyte et al. ..................... 427,297 4,310,590 A 1/1982 Petigara 41 12 652 10, 1992 4,313,976 A 2f1982 Leach EP O 472 973 3, 1992 4,622,248 A 1 1/1986 Leach et al. 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WO WOO2,06417 A1 * 1, 2002 5,552,378 A 9/1996 Trinh et al. WO O3,103392 12/2003 5,635,217 A 6, 1997 Goettsche et al. 5,667,795 A 9/1997 Fraley et al. OTHER PUBLICATIONS 5,714,507 A 2, 1998 Valcke et al. Backman, P.A., et al., The Effects of Particle Size and Distribution on 5,763,364 A 6, 1998 Frisch et al. Performance of the Fungicide Chlorothalonil, Phytopathology, St. 5,874,0255,833,741. A 1 2f19991/1998 WalkerHeuer et al. Paul,aul, IVTN,MN, US, VOl.vol. OO,66, NO.No. IU,10, 1l, Jan. 1, 1976,, pp. 1242-1245LZ-ty, 5,874.476 A 2, 1999 Hsu et al. XP9989.52811. 5,879,025 A 3, 1999 Blumenthal Supplementary European Search Report for PCT/US2005/016503 5,972,266 A 10/1999 Fookes dated Feb. 2, 2009. 5.990,043 A 1 1/1999 Kugler Supplementary European Search Report for PCT/US2005/037303 6,110,263 A 8, 2000 Goettsche et al. dated Feb. 2, 2009. 6,123,756 A 9/2000 Poppen The Merck Index (12 Ed. 1996) Merck & Co., Inc. 6,274,199 B1 8, 2001 Preston et al. 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