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公开(公告)号：DE3206398A1
公开(公告)日：1983-09-01
申请号：DE3206398
申请日：1982-02-23
Applicant: BASF AG
Inventor： HOPPE UDO DIPL CHEM DR , SEIB KARL DIPL CHEM DR , NAEGELE PAUL DIPL ING , MARTIN ROLAND DIPL CHEM DR
IPC: A61K8/00 , A61K8/49 , A61Q17/04 , C07D251/54 , C07D251/70 , C09K3/00 , A61K7/44
Abstract: Compounds of the formula I I where the individual radicals R are identical or different and are each hydrogen, an alkali metal, or ammonium which is unsubstituted or substituted by organic radicals, or are each C1-C20-alkyl or a polyoxyethylene radical which contains from 1 to 10 ethylene oxide units and whose terminal OH group may be etherified by an alcohol of 1 to 3 carbon atoms, are used as sun screen agents.
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公开(公告)号：DE2942657A1
公开(公告)日：1981-04-30
申请号：DE2942657
申请日：1979-10-22
Applicant: BASF AG
Inventor： STRAUB FERDINAND DIPL CHEM DR , HARTMANN HEINRICH DIPL CHEM DR , NAEGELE PAUL ING GRAD , SEIB KARL DIPL CHEM DR
Abstract: A process for the preparation of high-viscosity polyvinylpyrrolidone, wherein an aqueous polyvinylpyrrolidone solution is subjected to a heat treatment in the presence of a water-insoluble peroxide and in the absence of oxygen, and thickeners containing the polyvinylpyrrolidone thus prepared.
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公开(公告)号：DE2834645A1
公开(公告)日：1980-02-28
申请号：DE2834645
申请日：1978-08-08
Applicant: BASF AG
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公开(公告)号：DE3119385A1
公开(公告)日：1982-12-09
申请号：DE3119385
申请日：1981-05-15
Applicant: BASF AG
Inventor： OPPENLAENDER KNUT DIPL CHEM DR , STRICKLER RAINER DIPL CHEM DR , SEIB KARL DIPL CHEM DR , NAEGELE PAUL ING GRAD
Abstract: Cosmetic preparations are prepared containing from 0.1 percent to 15 percent by weight of oxyethylated diphenylamines as sun screen agents.
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公开(公告)号：DE3028503A1
公开(公告)日：1982-02-25
申请号：DE3028503
申请日：1980-07-26
Applicant: BASF AG
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Patent Agency Ranking
公开(公告)号：DE2621722A1
公开(公告)日：1977-12-08
申请号：DE2621722
申请日：1976-05-15
Applicant: BASF AG
IPC: C08F220/00 , A61K8/00 , A61K8/36 , A61K8/37 , A61K8/81 , A61Q5/06 , C08F2/06 , C08F220/04 , C08F220/10 , C08F220/14 , C08F220/18
Abstract: A process for the manufacture of copolymers by copolymerizing acrylic acid or methacrylic acid with esters of acrylic acid and methacrylic acid in the presence of polymerization initiators, in which methyl methacrylate, acrylic acid and/or methacrylic acid and a higher alkyl acrylate are copolymerized.
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公开(公告)号：DE2556525A1
公开(公告)日：1977-06-30
申请号：DE2556525
申请日：1975-12-16
Applicant: BASF AG
Inventor： HIMMELE WALTER DIPL CHEM DR , ROSS KARL-HEINZ DIPL CHEM DR , SCHUSTER LUDWIG DIPL CHEM DR , SEIB KARL DIPL CHEM DR
Abstract: In prepn. of 1,3-dihydroxyacetone esters of formula R1O-ch2-CO-CH2-OR2 (I), 2-methlene-1,3-propanediol esters R1O-CH2-C(=CH2)-CH2-O-COR2 (II) are reacted with ozone and the reaction mixt. formed is reacted with a reducing agent. In formulae (I) and (II), R1 is H or the residue -CO-R3; and R2 and R3 are each H or a (cyclo)aliphatic, araliphatic or aromatic residue. (I) and the dihydroxyacetone into which they can be converted by their basic hydrolysis are useful as intermediates for dyes, pharmaceuticals, plant-protection agents and cosmetics. Dihydroxyacetone is useful as a mild reducing agent for vat dyeing and as an artificial skin-browning agent in cosmetics. The process is simpler and more economical than known chemical methods for the prodn. of dihydroxyacetone (esters).
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公开(公告)号：DE3200199A1
公开(公告)日：1983-07-14
申请号：DE3200199
申请日：1982-01-07
Applicant: BASF AG
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公开(公告)号：DE2652034A1
公开(公告)日：1978-05-24
申请号：DE2652034
申请日：1976-11-15
Applicant: BASF AG
IPC: C09K3/00 , A61K20060101 , A61K8/00 , A61K8/41 , A61K8/44 , A61Q17/04 , C07C20060101 , A61K7/40
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