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公开(公告)号：DE2932304A1
公开(公告)日：1981-02-26
申请号：DE2932304
申请日：1979-08-09
Applicant: BASF AG
Inventor： NISSEN DIETMAR DIPL CHEM DR , MARX MATTHIAS DIPL CHEM DR , JARRE WOLFGANG DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR , DECKER WALTER
Abstract: Stable melamine-polyoxyalkylene polyether polyol dispersions are prepared by the in situ reduction of melamine particles wherein 90 percent of the melamine particles have a particle size of less than 10 microns. Stabilizers for the melamine-polyol dispersion are selected from the group consisting of (a) silicic acids and silicates, (b) salts of perfluorinated alkyl carboxylic acids having 4 to 20 carbon atoms, salts of alkyl sulfonic acids and perfluorinated alkylsulfonic acids having 4 to 20 carbon atoms and polyperfluoroether polyols having molecular weights of 300 to 6000, and (c) salts of fatty alcohol sulfates having 6 to 30 carbon atoms. These dispersions are useful for the preparation of polyurethane foams.
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公开(公告)号：DE2605713A1
公开(公告)日：1977-08-25
申请号：DE2605713
申请日：1976-02-13
Applicant: BASF AG
Abstract: Flameproof polyurethane foams are prepd. from OH-gp-contg. polyethers, polyisocyanates, blowing agents, catalysts, stabilisers, and opt. further auxiliaries and additives. The OH gp-contg. polyethers, (I), contains 2 active H atoms and have mol. wt. 2000-10000 (3000-6000). At least 10 (30-80)% of OH gps. are prim. OH gps. The polyisocyanates are used as solns. contg., w.r.t. total wt., 5-40 wt. % amide- and/or acylurea gp.-contg. isocyanuate polyisocyanate, (II), in monomer is di- and/or polyisocyanates, (III), free from amide-, acylurea- and/or isocyanurate gps. (II) contain, by wt., 26 to 0.25 (5 to 0.5)% amide- and/or acylurea gps., 29 to 5 (24 to 19)% isocyanurate gps. and 40 to 20 (30-20)% free NCO gps. Foams have bulk wt. 20-60 (30-50) kg/cm3 and are partic suitable as insulator material. Substitution of urethane-and isocyanurate gp.-contg. polyisocyanates by liquid, homogenous solns. of (II) in (III), improves flameproofness of foams without reducing physical properties, e.g. breaking strength and elongation. Solns. are free from insoluble complexes, have increased NCO-functionality and lower toxicity.
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3.发明专利
公开(公告)号：DE2457726A1
公开(公告)日：1976-06-16
申请号：DE2457726
申请日：1974-12-06
Applicant: BASF AG
Inventor： FALKENSTEIN GEORG DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , HEINZ GERHARD DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: (Cellular)polyurethanes are prepd. from a mixt. of A) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of mol. wt. 500-7,000 chosen from polyether-and polyester-polyols and opt. D) other conventional additives, the novelty being that a polymer (C) is included in the mixt.; C) is the reaction prodt. of a polymer contg. >=1 gp. capable of (trans)esterification and a polyhydroxy cpd. chosen from polyester- or polyether-polyols of mol. wt. 200-7,000 with formation of at least a partial ester like bond. Polymers contg. covalently bonded polyhydroxy cpds., useful in polyurethane chemistry are easily obtd. cf. prior art where either a) polyhydroxy cpds. and polyisocyanates were reacted or b) in situ free radical graft polymers contg. polyetherpolyols grafted over C-C bonds were used. Physical props. e.g., load capacity and low temp. flexibility are also improved. As flexible or rigid, foams, elastomers or coatings. The foams may be used as shoe soles, or in the automobile industry.
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公开(公告)号：DE3021293A1
公开(公告)日：1981-12-24
申请号：DE3021293
申请日：1980-06-06
Applicant: BASF AG
Inventor： HORACEK HEINRICH DR , MARX MATTHIAS DIPL CHEM DR , BUETHE INGOLF DIPL CHEM DR , JARRE WOLFGANG DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: The process involves the reaction of organic polyisocyanates, polyols, optionally substituted aliphatic and/or cycloaliphatic monoamines in an amount of from 0.1 to 10 parts by weight per 100 parts by weight of polyol, and/or optionally substituted aromatic monoamines in an amount of from 0.1 to 4 parts by weight per 100 parts by weight of polyol, and, if desired, chain extenders or crosslinking agents, in the presence of blowing agents, catalysts, assistants and, if desired, additives.
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Patent Agency Ranking
公开(公告)号：DE2457725A1
公开(公告)日：1976-06-16
申请号：DE2457725
申请日：1974-12-06
Applicant: BASF AG
Inventor： GEHM ROBERT DIPL CHEM DR , FALKENSTEIN GEORG DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , HEINZ GERHARD DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: Prepn. of (cellular) polyurethanes is claimed from a mixt. of a) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of mol. wt. 500-7,000 chosen from polyether- and polyesterpolyols and opt. D) other conventional additives, the novelty being that a polymer (C) is included in the mixt.; C) is an alkoxylated polymer prepd. by reacting 0.1-120 mol. ethylene oxide per mol. of gp. capable of being alkoxylated in (C). Polymers contg. covalently bonded polyhydroxy cpds. are easily obtd. cf. prior art in which either (a) polyhydroxy cpd. and polyisocyanates were reacted or (b) in situ free radical graft polymers contg. polyether-polyols grafted over C-C bonds were used. The polyurethanes have better load capacity, tensile, strength, compression set, and tear strength. Foams with low temp. flexibility may be prepd. with proper choice of (C). As flexible or rigid foams, elastomers or coatings. The foams may be used for upholstery, shoe soles, crash pads, etc.
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公开(公告)号：DE3100524A1
公开(公告)日：1982-08-12
申请号：DE3100524
申请日：1981-01-10
Applicant: BASF AG
Inventor： DECKER WALTER , SCHOEN ERNST DIPL CHEM DR , GRABHOEFER HERBERT DIPL CHEM D , WEYLAND PETER DIPL CHEM DR
Abstract: The invention concerns a process for the preparation of flexible polyurethane foams having good hydrolytic stability, improved damping, with equal or higher levels of other physical properties and with a high absorption capacity. The foams are prepared by reacting organic polyisocyanates and mixtures of (a) liquid polyester polyols, which are produced by the polycondensation of organic dicarboxcylic acid and a polyol mixture which contains 1,4-butanediol, 1,5-pentanediol, 1,6-hexanediol, and at least one triol, and (b) di- to tetra-functional polyether polyols having molecular weights of 1500 to 6000 in the presence of catalysts and blowing agents as well as optionally chain extenders, auxiliaries, and additives.
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公开(公告)号：DE2825569A1
公开(公告)日：1979-12-20
申请号：DE2825569
申请日：1978-06-10
Applicant: BASF AG
Inventor： HORACEK HEINRICH DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR , REICH ERHARDT DIPL CHEM DR , VOLKERT OTTO DIPL CHEM DR
IPC: C08G18/00 , C08G18/16 , C08G18/18 , C08G18/22 , C08G18/72 , C08G18/73 , C08G18/75 , C08G18/78 , C08G18/80 , C08G18/14
Abstract: To prepare light-stable polyurethane integral skin foams, especially soft integral foams, aliphatic and/or cycloaliphatic polyisocyanates, both categories preferably containing urethane groups and/or biuret groups, are reacted with polyols in the presence of blowing agents and of a synergistic catalyst combination comprising an alkali metal hydroxide, alkali metal alcoholate, alkali metal phenolate, alkali metal salt of a weak acid and/or hexahydrotriazine derivative and an organic tin, zinc and/or iron(II) compound, in the presence or absence of assistants and adjuvants. The preferred catalyst combination is tri-(dimethylaminopropyl)-s-hexahydrotriazine and dibutyl-tin dilaurate.
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公开(公告)号：DE2457740A1
公开(公告)日：1976-06-16
申请号：DE2457740
申请日：1974-12-06
Applicant: BASF AG
Inventor： FALKENSTEIN GEORG DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , HEINZ GERHARD DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: (Cellular)polyurethanes are prepd. from a mixt. of A) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of ave.mol.wt. 500-7,000 chosen from polyether- and polyester-polyols and opt. D) other conventional additives, the novelty being that a polymer (C) is included in the mixt.; C) is a (partially crosslinked polymer of particle size 500-5,000 angstroms which is dispersed in B) in an amt. of 1-40wt.%. The mixt. has low viscosity improving the workability. The use of the crosslinked polymer improves the solvent resistance of the polyurethanes and their physical characteristics esp. tensile strength/load capacity, compression strength, tear strength, low temp. flexibility, etc., are enhanced. As lacquers, elastomers, flexible and rigid foams. The foam may be used for (car)upholstery, crash pads, shoe soles, etc.
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公开(公告)号：DE2457727A1
公开(公告)日：1976-06-16
申请号：DE2457727
申请日：1974-12-06
Applicant: BASF AG
Inventor： FALKENSTEIN GEORG DIPL CHEM DR , STEIN DIETER DIPL CHEM DR , HAAF FRANZ DIPL CHEM DR , HEINZ GERHARD DIPL CHEM DR , SCHOEN ERNST DIPL CHEM DR
Abstract: (Cellular)polyurethanes are prepd. from a mixt. of A) >=1 polyisocyanate, B) >=1 polyhydroxy cpd. of ave.mol.wt. 500-7,000 chosen from polyether-and polyester-polyols and opt. D) other conventional additives the novelty being that a polymer (C) is included in the mixt.; C) is a (partially) crosslinked polymer of particle size 500-5,000 angstroms which is dispersed in B) in an amt. of 1-40wt.%. The mixt. has low viscosity improving the workability. The use of the crosslinked polymer improves the solvent resistance of the polyurethanes and their physical characteristics esp. tensile strength, load capacity, compression strength, tear strength, low temp. flexibility etc., are enhanced. The polyurethanes may be used as lacquers, elastomers, flexible and rigid foams. The foams may be used for (car) upholstery, crash pads, shoe soles, etc.
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