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4 records (took 0.109 seconds)

    1.
    发明专利
    未知

    公开(公告)号：DE2214261A1

    公开(公告)日：1973-10-04

    申请号：DE2214261

    申请日：1972-03-23

    Applicant: LUBRIZOL CORP

    Inventor： HOKE DONALD IRVIN ,  SURBEY DONALD LEE

    IPC: B01D21/01 ,  C02F1/54 ,  C07C235/10 ,  C07D295/12 ,  C07D295/13 ,  C08F20/60 ,  C08L23/02 ,  G03F7/027 ,  C07C103/64

    Abstract: N-3-Aminoalkyl propionamides with an ether substituent on the beta carbon atom are prepared by the reaction of analogous N-3-oxohydrocarbon-substituted amides with an amine in the presence of a reducing agent, preferably hydrogen and a hydrogenation catalyst. The resulting compounds can be converted to acrylamides by pyrolysis in the presence of a strong base. The latter compounds may so be prepared by the reaction of an alpha , beta -unsaturated amine with an acrylonitrile in the presence of sulfuric acid. They are useful for improving dyeability of fiber-forming polymers and may be polymerized to form compositions which improve paper strength and (in their quaternized form) are excellent flocculants.

    Polymers of substd (meth)acrylamides - for use as flocculants
    2.
    发明专利
    Polymers of substd (meth)acrylamides - for use as flocculants 未知

    公开(公告)号：DE2233337A1

    公开(公告)日：1974-01-10

    申请号：DE2233337

    申请日：1972-03-23

    Applicant: LUBRIZOL CORP

    Inventor： HOKE DONALD IRVIN ,  SURBEY DONALD LEE

    IPC: C02F1/54 ,  C08F20/60 ,  C08F3/90

    Abstract: (Co)polymers are derived from substd. (meth)acrylamides of formula (I): (where R', R2 and R3 are H or hydrocarbon, and R4 and R5 are hydrocarbons, R6 is -C(R7)=CH2 where R7 is H or lower alkyl, and R8 (sic) is hydrocarbon, Y is -NZ'Z2 or - circled positive NZ'Z2Z3X circled negative X is a salt-forming anion, Z' is H or hydrocarbon, and Z2 is H or (cyclo)alkyl, or -NZ'Z2 may be a heterocycle, and Z3 is H or lower alkyl), e.g. N-(1,1-dimethyl-3-dimethylaminopropyl)acrylamide.

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