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公开(公告)号：DE2842713A1
公开(公告)日：1980-04-10
申请号：DE2842713
申请日：1978-09-30
Applicant: BASF AG
Abstract: The resins are prepd. by (a) alkylating at >=15%, (esp. 20-50%) of the sec. N atoms of the polyamido-amine, and (b) reacting the alkylated product with ethylenically unsatd. 3-5C mono- or dicarboxylic acids or their derivs., vinyl sulphonate, acrolein and/or methacrolein at 30-140 degrees C., (pref. 40-120 degrees C). Pref. this reaction is effected with (meth)acrolein. Used to increase the dry strength of paper, without increasing the wet strength. Effective amts. are 0.2-3% calc. on the solid material, added to the fibre suspensions before paper mfr.
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公开(公告)号：DE2824884A1
公开(公告)日：1979-12-20
申请号：DE2824884
申请日：1978-06-07
Applicant: BASF AG
Inventor： GLASER KLAUS ING GRAD , STREIT WERNER DIPL CHEM DR , FIKENTSCHER ROLF DIPL CHEM DR , GOTSMANN GUENTHER DIPL CHEM DR
Abstract: Parent patent described water-soluble, cross-linked, nitrogenous condensation prods. (I), the viscosity of which in aq. soln. increases with increase in temp. and falls again with decrease in temp., are prepd. by reacting (a) 0.8-30 pts. of a block copolymer of formula (II) R-O-(CH2CH2O)x-(CH2CH(CH3)O)y-(CH2CH2O)x-R, in which R is H(OCH2-C(CH2Cl)H-)n, with n = 0.75-3, -CH2- x = 50-250, y = 20-100 and x:y = 6.5:1-1:15, with (b) 1 pt. of a cpd. with is not 4 basic NH gps. Reaction is in a polar solvent at 20-180 degrees C. In this addn. (I) are used as corrosion inhibitors for Zn, Al or their alloys. (I) give protection against corrosion at all pH levels and in low concn., and can be used in various metal-treating processes. Acid-sensitive alloys, e.g. "Duralumin" (RTM can be protected in strongly acid media (pH 2).
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公开(公告)号：DE2807450A1
公开(公告)日：1979-08-30
申请号：DE2807450
申请日：1978-02-22
Applicant: BASF AG , FREUDENBERG CARL FA
Inventor： BISCHOFF DIETER DIPL CHEM DR , FIKENTSCHER ROLF DIPL CHEM DR , STREIT WERNER DIPL CHEM DR , WELZEL GERHARD DIPL CHEM DR
IPC: B29C33/62 , C10M171/00 , C10M173/02 , C10M9/00 , C10M3/22
Abstract: Reaction prods. from block copolymers of formula RO(CH2CH2O)X-(CH2(CH3)CHO)y-(CH2CH2O)x-R (I) (where R is x is 50-250; y is 20-100; x:y is 6.5:1 to 1:15), with cpds. contg. >=4 basic NH gps., in wt. ratio 0.8-30:1, or with ethylene imine in wt. ratio 1:0.1-0.8, in polar solvent at 20-180 degrees C, are used as release agents. Used for applying to hot moulds and processing equipment, e.g. for mixing, calendering, etc., esp. for thermoplastics and rubber, and film, sheet, etc. Excellent release is obtd. without affecting adhesion of subsequent coatings. Blocking of plastics or rubber sheet in roll form during storage is prevented. In dil. aq. systems they give high viscosity, which increases with rising temp. stabilising the vapour cushion which forms on the surface of hot moulds and prevents adhesion.
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公开(公告)号：DE2638955A1
公开(公告)日：1978-03-02
申请号：DE2638955
申请日：1976-08-28
Applicant: BASF AG
Inventor： STREIT WERNER DIPL CHEM DR , FIKENTSCHER ROLF DIPL CHEM DR , GANS KARL , WLZEL GERHARD DIPL CHEM DR
IPC: D06M15/61 , C08G65/00 , C08G65/32 , C08G65/333 , C21D1/60
Abstract: Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a chlorohydrin-ether of the formula (I) where x is from 50 to 250, y is from 20 to 100, the ratio x:y is from 6.1:1 to 1:15 and n is from 0.5 to 5, with ethyleneimine in the weight ratio of from 1:10.1 to 1:0.8; the condensation products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.
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公开(公告)号：DE3210004A1
公开(公告)日：1983-09-22
申请号：DE3210004
申请日：1982-03-19
Applicant: BASF AG
IPC: D06M11/00 , C02F5/10 , D06L1/12 , D06M11/38 , D06M11/49 , D06M13/148 , D06M13/188 , D06M13/328 , D06M23/00 , D06M101/00 , D06M101/02 , D06M101/06 , D06M1/06
Abstract: An agent, based on reducing agents and complexing agents, for dissolving insoluble iron(III) compounds in aqueous textile treatment baths which are at a pH of 10 or more, which agent has the following composition: (a) from 4 to 65% by weight of one or more water-soluble hydroxycarbonyl compound or of an N- or O-acetal thereof, as the reducing agent, (b) from 10 to 80% by weight of one or more complexing agent which complexes Fe++ ions at a pH of 10 or more and (c) water in an amount equal to 100% minus the amounts of (a) and (b).
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Patent Agency Ranking16.发明专利
公开(公告)号：DE3305100A1
公开(公告)日：1983-08-18
申请号：DE3305100
申请日：1983-02-15
Applicant: BASF AG
IPC: C07D233/54 , C07D233/60 , C07D233/84 , C07D521/00 , C25D3/14
Abstract: New imidazole/SO3 complexes, method for their production by reaction of imidazoles with SO3 in an inert solvent and use as brighteners for electroplating baths. The final substances in accordance with the invention can thus be used as additives expediently for the protection of steel, brass, zinc, aluminium alloys and magnesium alloys against corrosion and in order to obtain bright, hard, very ductile levelling nickel coatings for, for instance, printing plates, cutting and embossing tools, nickel foils, nickel strips, nickel tubes, screen plates, automobile bumpers, clock dials, and optical articles.
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公开(公告)号：DE3111713A1
公开(公告)日：1982-10-07
申请号：DE3111713
申请日：1981-03-25
Applicant: BASF AG
Inventor： FREY GUENTER DIPL CHEM DR , STREIT WERNER DIPL CHEM DR , FIKENTSCHER ROLF DIPL CHEM DR , DEGEN HANS-JUERGEN DIPL CHEM D , GUENDER WOLF DIPL CHEM DR
Abstract: Water-soluble benzylated polyamidoamines which contain from 0.1 to 0.9 mole of benzyl groups per equivalent of nitrogen, and onto which from 20 to 400 parts by weight of ethyleneimine or propyleneimine have been grafted per 100 parts by weight of polyamidoamine, processes for the preparation of the materials, and the use of the materials as cationic assistants in processes for coloring paper with acid dyes and/or direct dyes in an aqueous medium. The papers obtained show a high color strength, with substantially no two sidedness of the coloration.
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公开(公告)号：DE2908303A1
公开(公告)日：1980-09-18
申请号：DE2908303
申请日：1979-03-03
Applicant: BASF AG , TENSI HANS M PROF DR ING
Inventor： WELZEL GERHARD DIPL CHEM DR , BRUCK WOLFGANG DIPL ING , STREIT WERNER DIPL CHEM DR , TENSI HANS-M PROF DIPL ING DR
Abstract: The copolymers (I) pref. acrylic acid with e.g. vinyl benzene or their alkali-, ammonium- or amine salts in 0.0005-2% aq. soln. as a quenching medium for tempering metal workpieces is claimed. The quenching bath may also contain 0.05-0.5 wt.% polyether cpd. (II) opt. contg. N, pref. alkoxylated amines. The bath has improved heat transfer properties i.e. improved cooling rate for the metal and the polymer has higher stability. The polymer forms hardly any deposits on the hardened metal surface. There is no localised cooling of the workpiece and crack formation is avoided. The bath can be used for Al, Cu alloys and esp. steel.
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公开(公告)号：DE2904240A1
公开(公告)日：1980-08-14
申请号：DE2904240
申请日：1979-02-05
Applicant: BASF AG
IPC: B29C33/62 , C03B40/02 , C10M173/02 , C10M3/22 , C10M3/04
Abstract: Used of crosslinked copolymer contg. COOH gps. or their alkali, NH4 or amine salts, in aq. soln. as release agents in hot forming of materials e.g. moulding or calendering of thermoplastics, rubbers, etc. is described. Good release properties, without adverse effect on subsequent treatment by coating, heat-sealing etc. Aq. soln. contg. 0.005-2 (0.05-0.5) wt.% copolymer from 3-6C unsatd. acid, e.g. (meth)acrylic or maleic acid, and a monomer with 2 C=C bonds, e.g. butadiene or divinyl benzene, or salts of these copolymers, and 0.05-10 wt.% polyether cpd. e.g. and adduct of an alkylene oxide and an alcohol, carboxylic acid, phenol, carbonamide or amine, which further stabilises the Leidenfrost vapour film between the mould and the material being moulded.
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公开(公告)号：DE2817203A1
公开(公告)日：1979-10-31
申请号：DE2817203
申请日：1978-04-20
Applicant: BASF AG
Inventor： FIKENTSCHER ROLF DIPL CHEM DR , STREIT WERNER DIPL CHEM DR , WELZEL GERHARD DIPL CHEM DR , GANS KARL
Abstract: Water sol., cross-linked, N-contg. condensation prods (I), the viscosity of which in aq. soln. increases with an increase in temp. and drops with a reduction in temp., are prepared by reaction of 1 mol. block copolymer HO-CCH2CH2O)x(CH2CH(Me)O)y(CH2CH2OeH (I) (where X is 50-250, y is 20-100 and the ratio x:y is 6.5:1 to 1:15) with >=1.5 mol. TDI or diisocyanate OCN -(CH2)-NCO (where n is 2-8) and crosslinking the prod. by addn. of water as well as opt. polyvalent alcohols, their alkoxylated prods. or cpds. contg. >=4 basic NH gps. A 10% aq. (I) soln. has a viscosity (20 degrees C) of 10-4500 in Pas. The viscosity changes are reversible (I) may be used to prevent dye migration and can be added to printing pastes in an amt. of 0.05-10%. (I) may also be used in aq. polymer solns. and dispersions. An increase in the viscosity of dispersions or solns. allows exact coatings even at high machine speeds.
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