74.
    发明专利
    未知

    公开(公告)号:AT324353T

    公开(公告)日:2006-05-15

    申请号:AT98937151

    申请日:1998-07-27

    Abstract: The invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one amino methyl phosphonic acid or salt thereof to inhibit bacterial adhesion to the submergible surface. The invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one amino methyl phosphonic acid or salt thereof to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the fouling organisms. The amino methyl phosphonic acid used in the methods of the invention has the formula R1R2NCH2P(O)(OH)2. In this formula, R1 and R2 are independently a C6-C20 alkyl group or a CH2P(O)(OH)2 group. However, R1 and R2 are not both a CH2P(O)(OH)2 group. Alternatively, R1 and R2, together with the N, may also form a 5-8 membered heterocyclic ring having the formula: In the heterocyclic ring, X is O, NH, or CH2. The salt of an amino methyl phosphonic acid can be an acid salt or a quaternized amino methyl phosphonic acid salt. The invention also relates to a composition containing amino methyl phosphonic acids or salts thereof and useable in the above methods. The compositions comprise at least one amino methyl phosphonic acid or salt thereof in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.

    Methods and compositions for controlling biofouling using sulfamic acids

    公开(公告)号:NZ502572A

    公开(公告)日:2002-08-28

    申请号:NZ50257298

    申请日:1998-07-27

    Abstract: A method for inhibiting bacteria from adhering to a submergible surface is disclosed. The method contacts the submergible surface with an effective amount of at least one sulfamic acid or salt thereof to inhibit bacterial adhesion to the submergible surface. The invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one sulfamic acid or salt thereof to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the fouling organisms. The sulfamic acid used herein has the formula R1R2NS(O)2(OH). In this formula, R1 and R2 are independently hydrogen, a C4-C20 alkyl group or a cyclohexyl group. However, R1 and R2 are not both hydrogen. Alternatively, R1 and R2, together with the N, may also form a 5-8 membered heterocyclic ring having the formula: In the heterocyclic ring, X is O, NH, or CH2. The salt of sulfamic acid can be an acid salt or quaternized sulfamic acid salt. A composition containing sulfamic acids or salts thereof useable in the above methods is also disclosed. The compositions comprise at least one sulfamic acid or salt thereof in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.

    AMINO- AND MERCURIO-SUBSTITUTED 4',5'-DIHYDROPSORALENS AND THERAPEUTICAL USES THEREOF

    公开(公告)号:CA2352665A1

    公开(公告)日:2000-06-02

    申请号:CA2352665

    申请日:1999-11-24

    Abstract: 5'- substituted, 4', 5'- dihydropsoralen compounds (5) bearing tertiary amin es (and salts thereof), quaternary ammonium moieties or organomercurial moietie s are described. Also described are 2- substituted mercurimethyl -2-3- dihydro - benzofurans of formula (7). Also reported are versatile direct syntheses through a hitherto unknown compounds such as 3-R-4, 8-dimethyl -4',5'-dihydr o - 5'-bromomethylpsoralen or a 3-R-4, 8-dimethyl-4, 5'-dihydro- 5'- iodomethylpsoralen to prepare a structurally diverse array of partially reduced psoralens and benzofurans. The presence of a permanent ammonium char ge in these psoralens precludes membrane passage and the mono-unsaturation precludes the cross linking of nuclear DNA, thereby minimizing the mutagenic/carcinogenic side effects long associated with psoralen-derived therapies. The presence of a mercury functionality provides a reactive cell- binding group on these psoralens with unique cytotoxicity without light activation and an enhancement of cytotoxicity activity upon light activation . The invention also relates to these partially reduced and quaternized psoralens, amino-substituted psoralens, and mercurio psoralens display impressive pharmacology against PAM 212 keratinocytes, a model cell line employed as a test system to indicate epidermal cytotoxicity and cancer. The compounds of the invention also have antimicrobicidal activity useful in pharmacologic agents for mammals (e.g. the treatment of tuberculosis) as wel l as in controlling the growth of microorganisms on substrates and in aqueous systems.

    METHODS AND COMPOSITIONS FOR CONTROLLING BIOFOULING USING SULFAMIC ACIDS

    公开(公告)号:CA2298607A1

    公开(公告)日:1999-02-11

    申请号:CA2298607

    申请日:1998-07-27

    Abstract: The invention relates to a method to inhibit bacteria from adhering to a submergible surface. The method contacts the submergible surface with an effective amount of at least one sulfamic acid or salt thereof to inhibit bacterial adhesion to the submergible surface. The invention also relates to a method for controlling biofouling of an aqueous system. This method adds an effective amount of at least one sulfamic acid or salt thereof to inhibit bacteria from adhering to a submerged surface within the aqueous system. This method effectively controls biofouling without substantially killing the fouling organisms. The sulfamic acid used in the method of the invention has the formula R1R2NS(O)2(OH). In this formula, R1 and R2 are independently a hydrogen, a C4-C20 alkyl group or a cyclohexyl group. However, R1 and R2 are not both hydrogen. Alternatively, R1 and R2, together with the N, may also form a 5-8 membered heterocyclic ring having formula (I). In the heterocyclic ring, X is O, NH, or CH2. The salt of sulfamic acid can be an acid salt or quaternized sulfamic acid salt. The present invention also relates to a composition containing sulfamic acids or salts thereof useable in the above methods. The compositions comprise at least one sulfamic acid or salt thereof in an amount effective to inhibit bacteria from adhering to submergible or submerged surfaces.

    79.
    发明专利
    未知

    公开(公告)号:ES2120500T3

    公开(公告)日:1998-11-01

    申请号:ES93910959

    申请日:1993-05-06

    Abstract: Halogenated 4'-methoxyacetophenones of formula I: logen; and n is 1 or 2 as microbicides for inhibiting the growth of microorganisms in aqueous systems and on surfaces, as well as for inhibiting slime formation in aqueous systems and biocidal compositions containing effective amounts of the halogenated 4'-methoxyacetophenones.

    80.
    发明专利
    未知

    公开(公告)号:BR9306502A

    公开(公告)日:1998-09-15

    申请号:BR9306502

    申请日:1993-05-06

    Abstract: Halogenated 4'-methoxyacetophenones of formula I: logen; and n is 1 or 2 as microbicides for inhibiting the growth of microorganisms in aqueous systems and on surfaces, as well as for inhibiting slime formation in aqueous systems and biocidal compositions containing effective amounts of the halogenated 4'-methoxyacetophenones.

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