Drug – bio-affecting and body treating compositions – Preparations characterized by special physical form – Cosmetic – antiperspirant – dentifrice
Patent
1998-07-06
2000-05-02
Page, Thurman K.
Drug, bio-affecting and body treating compositions
Preparations characterized by special physical form
Cosmetic, antiperspirant, dentifrice
424 701, 424 7011, 162100, 528480, 528502A, A61K 700, A61K 706, C08F 600
Patent
active
060569670
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to a process for the preparation of water-soluble, amino-containing condensates and adducts and their use as retention aids, drainage aids and fixing compositions in papermaking, as promoters in the sizing of paper with alkyldiketenes, as flocculants for sewage sludges, as adhesion promoters for the production of laminated films, as additives in hair and skincare compositions and as compositions for immobilizing anionic active ingredients.
Water-soluble amino-containing condensates or adducts have long been used as retention aids, drainage aids and fixing compositions in papermaking. For example, DE-B-1 771 814 discloses a method for increasing the retention of fibers, fillers and pigments in papermaking, for accelerating the drainage of paper stock suspensions and for working up paper machine waste waters. The process assistants used here are reaction products which are prepared by reacting water-soluble or water-dispersible basic polyamides as crosslinking agents which contain at least two functional groups which react with the amino groups of the basic polyamides. Such crosslinking agents are, for example, .alpha.,.omega.-alkyl dihalides, .alpha.,.omega.-dihaloethers, epichlorohydrin, .omega.-halocarbonyl halides, bisglycidyl ethers, bisepoxides, divinyl ether, divinyl sulfone and methylenebisacrylamide.
Water-soluble amino-containing adducts are, for example, polyethyleneimines, which are usually prepared by polymerizing ethyleneimine in the presence of acids, Lewis acids or haloalkanes (cf. U.S. Pat. No. 2,182,306 and U.S. Pat. No. 3,203,910). Polyethyleneimines have likewise long been used as retention aids, drainage aids and fixing compositions in papermaking.
U.S. Pat. No. 4,144,123 (corresponds to DE-B-24 34 816) discloses a process for the preparation of nitrogen-containing condensates, in which polyamidoamines are grafted with ethyleneimine and the reaction products thus obtained are reacted with .alpha.,.omega.-bis(chlorohydrin) ethers of polyalkylene oxides at from 20 to 100.degree. C., the reaction being carried out until the formation of high molecular weight resins which are still just water-soluble and have a viscosity of more than 300 mPa.multidot.s, measured at 20.degree. C. in 20% strength by weight aqueous solution. The condensates thus obtained are likewise used as retention aids, flocculants and drainage aids in papermaking.
Further process assistants which are suitable for papermaking are reaction products of polyalkylenepolyamines or ethylenediamine with, for example, dichloroethane or other bifunctional or polyfunctional crosslinking agents. Such reaction products are disclosed, for example, in EP-A-0 411 400 and DE-A-2 162 567.
U.S. Pat. No. 4,066,494 discloses the use of nitrogen-containing condensates based on polyalkylenepolyamines as drainage accelerators and retention aids in the paper industry. The nitrogen-containing condensates are prepared by reacting polyalkylenepolyamines which contain from 15 to 500 alkyleneimine units with .alpha.,.omega.-chlorohydrin ethers of polyethylene oxides which contain from 18 to 90 ethylene oxide units at from 20 to 100.degree. C. with formation of high molecular weight resins which are still water-soluble.
DE-C-2 916 356 discloses a process for the preparation of water-soluble polyetheramines, in which di- or polyamines having from 2 to 10 nitrogen atoms are first subjected to a condensation reaction with chlorohydrin ethers obtained from 1 mol of a dihydric alcohol of 2 to 5 carbon atoms, ethoxylation products thereof which contain up to 18 ethylene oxide units, glycerol or polyglycerol which contains up to 15 glycerol units, and at least from 2 to 8 mol of epichlorohydrin, in polar, water-miscible solvents in the absence of water or with substantial exclusion of water at from 110 to 200.degree. C., and an alkali metal base or alkaline earth metal base is then added in an amount sufficient to neutralize at least 20% of the hydrogen chloride formed in the condensation. A Postcondensation is then also carried o
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Dyllick-Brenzinger Rainer
Hettche Albert
Kanter Hartmut
Meixner Hubert
Reuther Wolfgang
BASF - Aktiengesellschaft
Page Thurman K.
Seidleck Brian K.
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