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公开(公告)号:DE2619147A1
公开(公告)日:1977-11-10
申请号:DE2619147
申请日:1976-04-30
Applicant: BASF AG
Abstract: In a secondary battery employing an aqueous lead salt solution as the electrolyte, salts of manganese, cobalt, nickel, copper, thallium, bismuth and/or antimony are additionally present in concentrations of from 0.1 to 100 mmole/l.
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公开(公告)号:DE2603765A1
公开(公告)日:1977-08-04
申请号:DE2603765
申请日:1976-01-31
Applicant: BASF AG
Abstract: A tube has its walls made up from layers of fibrous sheets impregnated with a thermoplastic (I). Pref. the (I) impregnated sheets are wound, at a temp. > m.pt. of (I), around an internal former as one or more overlapping layers, then compressed at 5-300N/cm using a tension tape made of heat-stable films. Opt. a preformed strip of hard foam is introduced between the layers and an endless glass fibre may be wound on simultaneously. The tubes are made quickly and easily and have good and uniform qualities esp. strength. Typical plastics are polyethylene, polypropylene, styrene (co)polymers, PVC etc, and the fabric is e.g. a mat, fleece, or web of glass-, C- plastics or asbestos-fibres coated with usual polymeric binders.
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公开(公告)号:DE2551718A1
公开(公告)日:1977-06-02
申请号:DE2551718
申请日:1975-11-18
Applicant: BASF AG
Inventor: THEYSOHN RAINER DIPL CHEM DR , WURMB ROLF DIPL CHEM DR , SEYDL WOLFGANG DIPL CHEM DR , ZAHRADNIK FRANZ DIPL CHEM DR
Abstract: Filled nylon molding compositions of increased rigidity containing red phosphorus as a flameproofing agent and talc or mica as a filler. They may be converted to moldings which are used, above all, in the electrical industry.
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公开(公告)号:DE2544218A1
公开(公告)日:1977-04-21
申请号:DE2544218
申请日:1975-10-03
Applicant: BASF AG
Inventor: LEUTNER BERND DIPL CHEM DR , SCHLIMPER HANS-ULRICH DIPL CHE , WURMB ROLF DIPL CHEM DR , TEYSOHN RAINER DIPL CHEM DR
Abstract: Fillers contg. ZnO, made by simultaneous addn. of a Zn salt in aq. soln. and a base to an aq. suspension contg. 30 wt. % max. inorganic carrier, to maintain pH 10-12. The carrier is pref. silica, a silicate and/or carbonate; Max. rate of addn. of Zn salt is 0.003 mol/min. for each g. carrier per 1. suspension. Pref. after addn. of 90% of the Zn salt required, the pH is reduced to 9-10. Temp. of the suspension is pref. 30-80 degrees (45-55 degrees)C. Synergistic action in combination with other flame retardants, e.g. halogenated cpds., is increased. Lower amounts can be used and adverse effect on mechanical properties of the polyamide reduced.
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公开(公告)号:DE2524121A1
公开(公告)日:1976-12-16
申请号:DE2524121
申请日:1975-05-30
Applicant: BASF AG
Inventor: WURMB ROLF DIPL CHEM DR , KUNDE JOACHIM DIPL CHEM DR , SCHLAG JOHANNES DIPL PHYS DR , DORST HANS GEORG DIPL ING DR
Abstract: Thermoplastic polybutylene terephthalate molding compositions containing calcium sulfate and/or barium sulfate to increase the tracking resistance.
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公开(公告)号:DE2512502A1
公开(公告)日:1976-10-07
申请号:DE2512502
申请日:1975-03-21
Applicant: BASF AG
Inventor: WURMB ROLF DIPL CHEM DR , LEUTNER BERND DIPL CHEM DR , THEYSOHN RAINER DIPL CHEM DR , SCHLIMPER HANSULRICH DIPL CHEM
Abstract: Fillers of Sb2O3 are produced on an inorg. support by adding an aq. Sb(III) halide soln. and aq. soln. of a base to an aq. suspension of an inorg. support, contg. max. 15 wt. % support, to increase the pH to 6-8 and ppte. Sb2O3 onto the support and then sepg. the solids from the aq. phase. The filler improves the flame retardancy of plastics and at least retards dripping on combustion, e.g. in an open flame.
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公开(公告)号:DE2424374A1
公开(公告)日:1975-12-11
申请号:DE2424374
申请日:1974-05-20
Applicant: BASF AG
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