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公开(公告)号：DE2404793A1
公开(公告)日：1975-08-14
申请号：DE2404793
申请日：1974-02-01
Applicant: BASF AG
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公开(公告)号：DE2437629A1
公开(公告)日：1976-02-26
申请号：DE2437629
申请日：1974-08-05
Applicant: BASF AG
Abstract: Manufacture of insoluble polyvinyl lactams by polymerization in the absence of oxygen and in the presence of sulfur compounds having a functionality of less than 6.
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公开(公告)号：DE2514127A1
公开(公告)日：1976-10-21
申请号：DE2514127
申请日：1975-03-29
Applicant: BASF AG
IPC: C08F26/00 , A61K31/79 , C07D207/26 , C08F26/10
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Patent Agency Ranking
公开(公告)号：DE2540170A1
公开(公告)日：1977-03-17
申请号：DE2540170
申请日：1975-09-10
Applicant: BASF AG
Abstract: Aqueous solutions of polyvinylpyrrolidone-iodine, generally referred to as PVP-iodine, which is finding increasing use because of its germicidal, bactericidal, fungicidal and disinfectant properties.
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公开(公告)号：DE2450786A1
公开(公告)日：1976-05-06
申请号：DE2450786
申请日：1974-10-25
Applicant: BASF AG
Inventor： HAAG ARMIN DIPL CHEM DR , HERRLE KARL DIPL CHEM DR , PFITZNER KLAUS DIPL CHEM DR , BANKOWSKY HEINZ-HILMAR ING GRA
IPC: C09B67/20 , C09D5/46 , C09D11/106 , C09D17/00 , C09D127/06 , C09D11/10 , C09B67/00
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公开(公告)号：DE2648082A1
公开(公告)日：1978-04-27
申请号：DE2648082
申请日：1976-10-23
Applicant: BASF AG
Inventor： HERRLE KARL DIPL CHEM DR , SANNER AXEL DIPL CHEM DR , DENZINGER WALTER , PERNER JOHANNES DIPL CHEM DR
Abstract: Textile washing compsns. contain, as phosphate substitutes powdery cation exchangers, (I), based on crosslinked polyacrylic acid or polyacrylate salts, prepd. by polymerisation of acrylic acid and/or its alkali- or NH4 salts in an aq. medium, in the absence of a radical-forming initiator. (I) have a Ca-bonding capacity >230 mg CaO/g, and allow use of low-phosphate to phosphate-free detergents. (I) do not cause greying of textiles; can be collected in clarifying plant; do not pollute drinking water; resist microorganisms in water and do not contribute to biological O2-demand of the waste waters. Absence of radical-forming initiator improves yields and Ca-bonding capacity.
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公开(公告)号：DE2523618A1
公开(公告)日：1976-12-02
申请号：DE2523618
申请日：1975-05-28
Applicant: BASF AG
Inventor： DENZINGER WALTER , SEELERT KURT DIPL CHEM DR , HERRLE KARL DIPL CHEM DR , SCHWARZ WOLFGANG DR
IPC: C08F8/22 , C08F126/10
Abstract: Polyvinylpyrrolidone-iodine (PVP-I) prepn. in which the PVP is obtained by polymerisation in an anhydrous organic solvent in presence of a radical inducer and opt. in presence of a heavy metal or atomic no. 23-29 as a complex salt of an organic acid as auxiliary activator, is of improved stability. The product is a known antimicrobial agent. Preferred solvents are isopropanol when preparing PVP of mol. wt. 40,000, and toluene. Up to 10% of water in the solvent may not affect the product. In aqs. solvents the addition of 0.01-1% of an alkali is recommended, e.g. buffers, ammonia and volatile mono-, di- and tri-alkylamines. Radical inducers include acetodiisobutyronitrile and organic peroxides.
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