Pyrithione complex compound, process for producing the same and use thereof
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07F-003/06
C23F-011/00
C09K-015/26
출원번호
UP-0566501
(2004-10-22)
등록번호
US-7659397
(2010-04-02)
우선권정보
JP-2003-364295(2003-10-24)
국제출원번호
PCT/JP2004/015710
(2004-10-22)
§371/§102 date
20060131
(20060131)
국제공개번호
WO05/040122
(2005-05-06)
발명자
/ 주소
Hidaka, Yasuhiro
출원인 / 주소
YHS Ltd.
대리인 / 주소
Wenderoth, Lind & Ponack, L.L.P.
인용정보
피인용 횟수 :
11인용 특허 :
1
초록▼
Zinc pyrithione and copper pyrithione are highly evaluated in the market as an antidandruff agent for shampoo, or an antifouling agent for ship bottom paint and fish-farming net, or an antibacterial/antifungal agent or preservative/mildewcide for industrial products and household articles. For enhan
Zinc pyrithione and copper pyrithione are highly evaluated in the market as an antidandruff agent for shampoo, or an antifouling agent for ship bottom paint and fish-farming net, or an antibacterial/antifungal agent or preservative/mildewcide for industrial products and household articles. For enhancing the market value thereof, there has been a demand for a product that not only attains an increase in conventional antibacterial/antifungal effects but also exhibits novel bioactive effects and that achieves improvement with respect to problems and drawbacks relating to properties, such as solubility in seawater, and stability, such as thermal stability and weather resistance, of polymer materials. There is provided a novel pyrithione complex compound obtained by converting the conventional pyrithione metal salt to a complex compound with an oxide or hydroxide of metal such as zinc, copper or aluminum. As compared with the conventional pyrithione metal salt, this complex compound exhibits superior antibacterial/antifungal effects, newly realizes a hair-regrowing effect and successfully attains improvement with respect to the solubility in seawater and thermal stability/weather resistance of polymer materials.
대표청구항▼
The invention claimed is: 1. A zinc pyrithione complex compound represented by the formula (I): xZnO.Zn(Py)2 (I), wherein x denotes a positive number satisfying the equation: 0<x≦1, and Py represents 2-pyridylthio-N-oxide. 2. The zinc pyrithione complex compound acc
The invention claimed is: 1. A zinc pyrithione complex compound represented by the formula (I): xZnO.Zn(Py)2 (I), wherein x denotes a positive number satisfying the equation: 0<x≦1, and Py represents 2-pyridylthio-N-oxide. 2. The zinc pyrithione complex compound according to claim 1, wherein x is ⅓. 3. A process for producing a zinc pyrithione complex compound represented by the formula (I): xZnO.Zn(Py)2 (I), wherein x denotes a positive number satisfying the equation: 0<x≦1, and Py represents 2-pyridylthio-N-oxide, said process comprising: adding ½ to 2 equivalent mol of an aqueous solution of a water-soluble zinc salt and ¾ to 3 equivalent mol of an aqueous alkali hydroxide solution to an aqueous alkali pyrithione solution, and reacting the mixture at a pH of 9 to 12 to collect precipitates of the zinc pyrithione complex compound represented by the formula (I). 4. The process according to claim 3, wherein x is ⅓. 5. The process according to claim 3 or claim 4, wherein the zinc pyrithione complex compound contains zinc oxide or a mixture of zinc oxide and zinc pyrithione as a byproduct, and the exothermic peak temperature in thermal analysis (DTA) is 322 to 335° C. 6. An antidandruff agent comprising one or more of the zinc pyrithione complex compounds according to claim 1 or claim 2. 7. A hair-care product comprising the antidandruff agent according to claim 6. 8. A hair-care product comprising the antidandruff agent according to claim 6 and zinc oxide. 9. An underwater antifouling agent comprising one or more of the zinc pyrithione complex compounds according to claim 1 or claim 2. 10. An underwater antifouling agent comprising: a binder, one or more of the zinc pyrithione complex compounds according to claim 1 or claim 2, and an inorganic copper compound and/or an inorganic zinc compound. 11. The underwater antifouling agent according to claim 10, wherein the binder is an acrylic resin, the inorganic copper compound is at least one type selected from the group consisting of copper (I) oxide, copper (II) oxide and copper thiocyanate, and the inorganic zinc compound is zinc oxide. 12. A rot proofing/mildew proofing agent or antibacterial/antifungal agent comprising one or more of the zinc pyrithione complex compounds according to claim 1 or claim 2 as effective components. 13. An aqueous product comprising the zinc pyrithione complex compound according to claim 2 and a 2-isothiazolone type preservative. 14. An aqueous product comprising a mixture of the zinc pyrithione compound according to claim 2 and zinc oxide, and a 2-isothiazolone type preservative.
Van Der Flaas, Mark Arthur Josepha; Nys, Jan Remi, Synergistic antifouling compositions comprising 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile.
Van der Flaas, Mark Arthur Josepha; Nys, Jan Remi, Synergistic antifouling compositions comprising 4-bromo-2-(4-chlorophenyl)-5-(trifluoromethyl)-1H-pyrrole-3-carbonitrile.
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