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    53.
    发明专利
    未知

    公开(公告)号：BR6462908D0

    公开(公告)日：1973-08-07

    申请号：BR16290864

    申请日：1964-09-25

    Applicant: BUCKMAN LABOR INC

    Inventor： BUCKMAN S ,  PERA J

    IPC: A01N47/48

    Abstract: The growth of micro-organisms in an aqueous medium is inhibited by adding to said medium a composition comprising:-(A) methylene bisthiocyanate; (B) a dispersant having the formula R-O-(R1C2H3O)xH, wherein x is an integer from 1 to 20, R is a straight or branched-chain alkyl-substituted phenyl group or a straight or branched-chain alkyl group, the said alkyl substituent or alkyl group containing from 6 to 20 carbon atoms, and R1 is a hydrogen atom or a methyl radical; and (C) at least one N,N-dimethylamide having the formula wherein R11 is a hydrogen atom or a saturated or unsaturated alkyl group containing from 1 to 22 carbon atoms which is either unsubstituted or hydroxy-substituted, the composition containing the methylene bisthiocyanate (A) in a proportion of from 5 to 50%, preferably 20 to 40%, the dispersant (B) in a proportion of from 5 to 40%, preferably 10 to 20%, and the dimethylamide or dimethylamides (C) in a proportion of 10 to 90%, preferably 45 to 65%, all the percentages being by weight of the total (A) + (B) + (C) content of the composition.ALSO:An antimicrobial composition comprises (A) methylene bisthiocyanate; (B) a dispersant having the formula R-O-(R1C2H3O)xH, wherein x is an integer from 1 to 20, R is a straight or branched-chain alkyl-substituted phenyl group or a straight or branched-chain alkyl group, the said alkyl substituent or alkyl group containing from 6 to 20 carbon atoms, and R1 is a hydrogen atom or a methyl radical; and (C) at least one N,N-dimethylamide having the formula: wherein R11 is a hydrogen atom or a saturated or unsaturated alkyl group containing from 1 to 22 carbon atoms which is either unsubstituted or hydroxy-substituted, the composition containing the methylene bisthiocyanate (A) in a proportion of from 5 to 50%, preferably 20 to 40%, the dispersant (B) in a proportion of from 5 to 40%, preferably 10 to 20%, and the dimethylamide or dimethylamides (C) in a proportion of 10 to 90%, preferably 45 to 65%, all the percentages being by weight of the total (A) + (B) + (C) content of the composition. The composition may be employed for inhibiting the growth of microorganisms on wood, hides, leather, and organic cellulosic substances.ALSO:Fungal growth on wet or dewatered pulp, and slime in pulp and paper mills is inhibited, wet felts and alum systems are protected, and fungus-resistant paper and paperboard are made by treatment with a composition comprising (A) methylene bisthiocyanate; (B) a dispersant having the formula R-O-(R1C2H3O)xH, wherein x is an integer from 1 to 20, R is a straight or branched-chain alkyl-substituted phenyl group or a straight or branched-chain alkyl group, the said alkyl substituent or alkyl group containing from 6 to 20 carbon atoms, and R1 is a hydrogen atom or a methyl radical; and (C) at least one N, N-dimethylamide having the formula: wherein R11 is a hydrogen atom or a saturated or unsaturated alkyl group containing from 1 to 22 carbon atoms which is either unsubstituted or hydroxy-substituted, the composition containing the methylene bisthiocyanate (A) in a proportion of from 5 to 50%, preferably 20 to 40%, the dispersant (B) in a proportion of from 5 to 40%, preferably 10 to 20%, and the dimethylamide or dimethylamides (C) in a proportion of 10 to 90%, preferably 45 to 65% all the percentages being by weight of the total (A) + (B) + (C)content of the composition.

    54.
    发明专利
    未知

    公开(公告)号：SE341629B

    公开(公告)日：1972-01-10

    申请号：SE1741367

    申请日：1967-12-19

    Applicant: BUCKMAN LABOR INC

    Inventor： RATHS F ,  BUCKMAN J ,  PERA J

    IPC: C07C381/04 ,  C07C161/00

    Abstract: 1,132,297. Methylene bisesters of thiosulphonic acids. BUCKMAN LABORATORIES Inc. 13 Oct., 1967 [12 May, 1967], No. 46886/67. Heading C2C. [Also in Divisions A5, C6 and D2] Novel methylene bisesters of thiosulphonic acids of the general formula wherein R and R 1 each represents a straight or branched chain C 1 -C 6 alkyl, alicyclic or aryl group, or a substituted aryl group wherein 1-3 of the hydrogen atoms are replaced by alkyl, hydroxy, nitro, or halogen, the substituents attached to the aryl group being the same or different, are prepared by reacting an alkali metal salt of a thiosulphonic acid of formula RSO 2 SH and/or an alkali metal salt of a thiosulphonic acid of formula R 1 SO 2 SH with methylene bromide or methylene iodide.

    57.
    发明专利
    未知

    公开(公告)号：SE309287B

    公开(公告)日：1969-03-17

    申请号：SE785761

    申请日：1961-08-01

    Applicant: BUCKMAN LABOR INC

    Inventor： BUCKMAN S ,  PERA J ,  FUNDERBURK G

    IPC: C01B35/12 ,  C09C1/00 ,  C09C1/02

    Abstract: A white barium zirconium borate pigment BaO.ZrO2.B2O3 is prepared by heating a mixture of either (1) zirconium dioxide and barium metaborate or compounds convertible to such upon heating, e.g. zirconium sulphate tetrahydrate and barium sulphide, carbonate or hydroxide with boron trioxide or boric acid, or (2) barium metazirconate and boron trioxide or a boron compound convertible to the trioxide upon heating. The heating is preferably carried out between 800 DEG -1300 DEG C. for 10 mins.-24 hours. The zirconium dioxide used may be either the mineral baddeleyite or it may be prepared by precipitation in the hydrous form from zirconium sulphate tetrahydrate or zirconium tetrachloride solutions. The zirconium sulphate tetrahydrate may be prepared by recrystallizing precipitated basic zirconium sulphate from sulphuric acid. The barium metaborate used may be precipitated by reacting solutions of barium sulphide or hydroxide with sodium tetraborate. Example 1 refers to the above stoichiometric quantities of barium carbonate, boric acid and zirconium dioxide being mixed in a mortar and pestle and fired at 1050 DEG C. for one hour after which the cooled product was reground and fired for a further hour at 1050 DEG C. X-ray analysis of the resulting crystalline product indicated that a compound had been formed. Example 2 refers to a ground mixture of barium carbonate, boric acid and recrystallized zirconium sulphate tetrahydrate being fired at 1100 DEG C., reground p and refired at 1100 DEG C. for a further half hour. Example 3 refers to hydrous zirconium dioxide being precipitated from zirconium sulphate tetrahydrate solution with sodium hydroxide. A slurry of the hydrous zirconium dioxide and boric acid was then gently refluxed and barium hydroxide added and the refluxing continued for two hours. The resulting wet cake was dried at 140 DEG C. and fired as in Example 1. Example 4 refers to the barium zirconium borate compound being prepared together with excess barium metaborate. Example 5 refers to the barium zirconium borate compound being prepared together with excess zirconium dioxide. Specifications 813,228 and 879,499 are referred to.

    59.
    发明专利
    未知

    公开(公告)号：BR7805732A

    公开(公告)日：1979-12-18

    申请号：BR7805732

    申请日：1978-08-31

    Applicant: BUCKMAN LABOR INC

    Inventor： PERA J ,  FENYES J

    IPC: C09K3/00 ,  C02F5/14 ,  C07F9/38 ,  C07F9/40 ,  C07F9/6553 ,  C23F11/167 ,  C02B5/06

    Abstract: Aminoalkylenephosphonic acids and their alkali metal salts prepared by a reaction utilizing a primary or secondary tetrahydrothiophenamine 1,1-dioxide or the hydrochloride thereof, an aldehyde or a ketone, and orthophosphorous acid are useful in the control of scale and sludge deposition in aqueous systems. When used in combination with known corrosion inhibitors they show synergistic results in inhibiting corrosion of metal surfaces in contact with an aqueous system that is normally corrosive to such metals.

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