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    24.
    发明专利
    未知

    公开(公告)号：MX9300468A

    公开(公告)日：1994-07-29

    申请号：MX9300468

    申请日：1993-01-28

    Applicant: CLOROX CO

    Inventor： ZIELSKE ALFRED G ,  FONG RONALD A ,  LEWIS SHELDON N ,  WIERSEMA RICHARD J

    IPC: C11D3/395 ,  C07C409/24 ,  C11D3/39 ,  C11D7/38 ,  C11D7/54 ,  C01B15/00

    Abstract: A peracid precursor characterised in that it corresponds to the following general formula: wherein R represents C1-C20 alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl or substituted aryl; R' and R'' independently represent hydrogen, C1-C20 alkyl, aryl, C1-C20 alkylaryl, substituted aryl or NR @@ wherein R represents C1-C30 alkyl; and L represents a leaving group, is disclosed. A peracid characterised in that it corresponds to the following general formula: wherein R, R, and R'' are as defined above; or an alkali metal or alkaline earth metal salt thereof, is also disclosed. A bleaching composition which may comprise such a peracid precursor and a bleach-effective amount of a source of hydrogen peroxide is further disclosed. New, proficient and cost-effective compounds for fabric bleaching are provided.

    25.
    发明专利
    未知

    公开(公告)号：AT84021T

    公开(公告)日：1993-01-15

    申请号：AT87306009

    申请日：1987-07-08

    Applicant: CLOROX CO

    Inventor： FONG RONALD A ,  ROWLAND RICHARD R

    IPC: C07C67/08 ,  C07C69/28 ,  C07C69/63 ,  C07C69/90 ,  C07C409/24 ,  C07C409/26 ,  C11D3/39

    Abstract: The present invention provides a method of esterifying dihydroxybenzene starting materials to synthesize unsymmetrical diesters in high yield. Many of the resultant unsymmetrical diesters are useful in dry bleaching compositions. The method can be practiced by selectively monoacylating a dihydroxybenzene starting material with an acid anhydride to form an intermediate monoester having the structure which is then acylated to form a diester reaction product having the structure wherein R1 is greater than R3 (and both R1 and R3 are alkyl groups) and X is a substituent group which does not participate in the esterification (or which can have a protecting group thereon).

    POLYGLYCOLATE PERACID PRECURSORS
    26.
    发明专利
    POLYGLYCOLATE PERACID PRECURSORS 未知

    公开(公告)号：CA2013252A1

    公开(公告)日：1990-09-29

    申请号：CA2013252

    申请日：1990-03-28

    Applicant: CLOROX CO

    Inventor： ROWLAND RICHARD R ,  FONG RONALD A ,  WIERSEMA RICHARD J ,  ZIELSKE ALFRED G

    IPC: C01B15/00 ,  C07C409/24 ,  C11D3/39 ,  C11D7/54 ,  D06L3/02 ,  D06L3/06

    Abstract: Polyglycolate compounds are provided having the general structure: wherein n is an integer from 2 to about 10; R is C1-20 linear or branched alkyl, alkoxylated alkyl, cycloalkyl, aryl, alkylaryl, substituted aryl; R' and R" are independently H, C1-20 alkyl, aryl, C1-20 alkylaryl, substituted aryl, and NR3.alpha.+, wherein R.alpha. is C1-30 alkyl; and L is a leaving group displaceable in a peroxygen bleaching solution by perhydroxide anion. When this compound is combined with a source of peroxygen in aqueous solution, then a plurality of stain removing peracids are formed. Such peracids are formed substantially sequentially beginning with the carbonyl adjacent to the leaving group L. Thus, a first stain removing peracid having the structure will be formed in amounts approaching quantitative yield.

    CONTROLLED GENERATION HYPOCHLORITE COMPOSITIONS AND METHOD
    28.
    发明专利
    CONTROLLED GENERATION HYPOCHLORITE COMPOSITIONS AND METHOD 未知

    公开(公告)号：CA1224902A

    公开(公告)日：1987-08-04

    申请号：CA485825

    申请日：1985-06-28

    Applicant: CLOROX CO

    Inventor： FONG RONALD A ,  CASELLA VICTOR M

    IPC: C11D3/395

    Abstract: A dry bleaching composition, particularly useful for low temperature applications, is provided in which generation of hypochlorite by reaction between a peroxygen bleaching agent and a chloride salt is promoted by an aromatic diol or oxidized aromatic diol activator. Preferred activators are in ester form and provide hypochlorite generation at levels of less than about 20 ppm for at least about the first two minutes following dissolution of the compositions in aqueous solution, but rising to effective bleaching levels within a reasonable time thereafter. The initially low hypochlorite level assists in the functioning of laundry additives, such as fabric brighteners.

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