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    MIXTURE OF AT LEAST TWO ALKOXYLATED ALCOHOLS AND ITS USE AS ANTIFOAM TENSIDE ADDITIVE IN CLEANING PRODUCTS FOR MECHANICAL WASHING PROCESSES
    31.
    发明专利
    MIXTURE OF AT LEAST TWO ALKOXYLATED ALCOHOLS AND ITS USE AS ANTIFOAM TENSIDE ADDITIVE IN CLEANING PRODUCTS FOR MECHANICAL WASHING PROCESSES 未知

    公开(公告)号：CA2104468A1

    公开(公告)日：1992-08-23

    申请号：CA2104468

    申请日：1992-02-11

    Applicant: BASF AG

    Inventor： STOECKIGT DIETER ,  BAUR RICHARD ,  TRAPP HORST ,  PERNER JOHANNES

    IPC: C11D1/722 ,  C11D1/825 ,  C11D3/00 ,  C11D17/00 ,  C07C43/04 ,  C07C41/03

    Abstract: Preparation of mixture of alkoxylated alcohols and use thereof as a foam-suppressing surfactant additament in cleaning compositions for mechanized cleaning processes. Preparation of a mixture of alkoxylated alcohols I R-O-(C2H4O)x-(C3H6O)y-H (I) where x is an average degree of ethoxylation of from 1 to 12 and y is an average degree of propoxylation of from 1 to 15, comprises mixing at least two mixtures of alcohols of the general formula R-O-H where one alcohol mixture carries straightchain or branched C8-C18-alkyl groups as the radical R and one other alcohol mixture carries straight-chain or branched C10-C20-alkyl groups as the radical R, subject to the proviso that the two radicals R differ by at least 0.5 in the average number of carbon atoms, and the two alcohol mixtures are present in a weight ratio of from 10:90 to 90:10, with one another and reacting this mixture first with the corresponding amount of ethylene oxide and then with the corresponding amount of propylene oxide. This mixture is useful as a foam-suppressing surfactant additament in cleaning compositions for mechanized cleaning processes.

    38.
    发明专利
    未知

    公开(公告)号：NO872140L

    公开(公告)日：1987-11-23

    申请号：NO872140

    申请日：1987-05-21

    Applicant: BASF AG

    Inventor： BARTHOLD KLAUS ,  OPPENLAENDER KNUT ,  LASOWSKI JUERGEN ,  BAUR RICHARD

    IPC: B01D17/05 ,  C08G8/36 ,  C08G65/34 ,  C10G33/04 ,  C08G65/00 ,  C02F1/00

    Abstract: Polyethers with are suitable as oil demulsifiers are obtainable by reacting (A) a polyalkylene oxide obtained from ethylene oxide and propylene oxide and containing in total from 5 to 200 alkylene oxide units with (B) an alkylolation product of a low molecular weight aldehyde and a bis-(4-hydroxyphenyl)-methane of the general formula II wherein R1 and R2 may be identical or different and are each hydrogen, low molecular weight alkyl, phenyl, carboxyl or low molecular weight alkoxycarbonyl, the molar reaction ratio of the compound of the formula II to the alkylolating aldehyde being from 1:1 to 1:4, at from 100 DEG to 180 DEG C. in the presence of an acidic catalyst with removal of the water of reaction, the weight ratio of A to B being from 5:1 to 1:3.

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