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公开(公告)号：DE3367397D1
公开(公告)日：1986-12-11
申请号：DE3367397
申请日：1983-06-20
Applicant: BASF AG
Inventor： ZEITLER GERHARD DR , WERNER FRANK DR , BITTNER GERHARD DR , BAUMANN KARL-HEINZ DR , ROEBER ARTUR , METZINGER LOTHAR DR , OHLINGER RAINER DR , ZETTLER HANS DIETER
Abstract: In order to prepare thermoplastic polyurethane elastomers (a) organic diisocyanate, (b) polyhydroxyl compounds with molecular weights of 500 to 8,000, and (c) chain extenders with molecular weights of 60 to 400 in the presence of (d) catalysts, and optionally (e) auxiliaries, and/or (f) additives are reacted in two reaction stages at temperatures from 60 DEG C. to 250 DEG C. In the first reaction stage the components are continuously mixed, the reaction mixture is applied to a carrier, preferably a conveyor band of thermoplastic material, and is allowed to react at the reaction temperature until solidified. Subsequently, the solidified reaction mixture is melted in an extruder and the reaction is completed in the second reaction stage.
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公开(公告)号：DE3224324A1
公开(公告)日：1984-01-05
申请号：DE3224324
申请日：1982-06-30
Applicant: BASF AG
Inventor： ZEITLER GERHARD DR , WERNER FRANK DR , BITTNER GERHARD DR , BAUMANN KARL-HEINZ DR , ROEBER ARTUR , METZINGER LOTHAR DR , OHLINGER RAINER DR , ZETTLER HANS DIETER DIPL ING
Abstract: In order to prepare thermoplastic polyurethane elastomers (a) organic diisocyanate, (b) polyhydroxyl compounds with molecular weights of 500 to 8,000, and (c) chain extenders with molecular weights of 60 to 400 in the presence of (d) catalysts, and optionally (e) auxiliaries, and/or (f) additives are reacted in two reaction stages at temperatures from 60 DEG C. to 250 DEG C. In the first reaction stage the components are continuously mixed, the reaction mixture is applied to a carrier, preferably a conveyor band of thermoplastic material, and is allowed to react at the reaction temperature until solidified. Subsequently, the solidified reaction mixture is melted in an extruder and the reaction is completed in the second reaction stage.
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Patent Agency Ranking
公开(公告)号：DE4440057A1
公开(公告)日：1996-05-15
申请号：DE4440057
申请日：1994-11-10
Applicant: BASF AG
Inventor： BREEDE KNUT , BAUMANN KARL-HEINZ DR , FISCHER JOACHIM DR
Abstract: A continuous process for the prodn. of expanded polyolefin particles (I) comprises suspending the polymer particles in a dispersion medium, impregnating with a volatile blowing agent under elevated pressure and then discharging the impregnated particles into a low-pressure space. The impregnation stage is carried out in a screw machine. Pref. the polyolefin is a copolymer of propylene (P) with 0.5-15 wt.% ethylene (E) and/or 4-8C alpha -olefin, or a copolymer of ethylene with 3-18 wt.% 4-10C alpha -olefin. The blowing agent is propane, butane, pentane, hexane, CO2 or a mixt. thereof.
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公开(公告)号：DE1795358A1
公开(公告)日：1972-01-05
申请号：DE1795358
申请日：1968-09-19
Applicant: BASF AG
Inventor： BAUMANN KARL-HEINZ DR , DOERFEL HELMUT DR , BECHT GUENTER DR
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公开(公告)号：DE4438143C2
公开(公告)日：1997-10-09
申请号：DE4438143
申请日：1994-10-25
Applicant: BASF AG
Inventor： BAUMANN KARL-HEINZ DR , NIKOLITSCH JOHANN , GENZ MANFRED DR
Abstract: In an apparatus for producing foamed plastics parts, a closed mold (1) is filled with polymer molding compound and, after the elapse of a reaction time, the finished part is removed. A plurality of identical molds (1) run on mold carriers (5) through a production installation. For the purpose of reducing the production outlay, a demolding device (11) shared by all the molds (1) is brought into operative connection successively with the molds (1) and in each case one mold (1) is opened. The movements required in this operation are executed by the demolding device (11). An unlocking unit (19) and a swiveling unit (20) of the demolding device (11) are brought into engagement with the mold (1) by a positioning unit (21), after which the mold (1) is unlocked and one mold half (1a) of the mold (1) is swung open. For unlocking the mold (1), the latter is raised against spring force and a positive locking is brought out of engagement.
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公开(公告)号：DE4438143A1
公开(公告)日：1996-05-02
申请号：DE4438143
申请日：1994-10-25
Applicant: BASF AG
Inventor： BAUMANN KARL-HEINZ DR , NIKOLITSCH JOHANN , GENZ MANFRED DR
Abstract: A prodn. process for mfg. foamed plastic products involves: (a) feeding material into a closed tool (1) and after a reaction time, (b) demoulding the product. The process is effected in tools mounted on carriers on a conveyor and demoulding of products is effected by an extraction unit (11) which is moved up to each tool (1) in turn to open the latter (1) and remove the product. Also claimed is process appts. including the demoulding unit (11).
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公开(公告)号：AT23345T
公开(公告)日：1986-11-15
申请号：AT83105994
申请日：1983-06-20
Applicant: BASF AG
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