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公开(公告)号:DE59010875D1
公开(公告)日:1999-08-12
申请号:DE59010875
申请日:1990-04-14
Applicant: BASF AG
Inventor: HORN PETER DR , HECKMANN WALTER DR , RAMSTEINER FALKO DR , GEROLD FRIEDRICH
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公开(公告)号:DE3927244A1
公开(公告)日:1991-02-21
申请号:DE3927244
申请日:1989-08-18
Applicant: BASF AG
Inventor: HORN PETER DR , HINZ WERNER DR , HECKMANN WALTER DR , RAMSTEINER FALKO DR , GEROLD FRIEDRICH
IPC: A61L31/00 , A61L2/07 , A61L27/18 , A61L27/34 , A61L27/44 , B01D63/02 , B01D65/00 , C08G18/10 , C08G18/12 , C08G18/48 , C08G18/66 , C08G18/72 , C08G18/76
Abstract: The present invention relates to transparent essentially non-cellular polyurethane casting compositions that are sterilizable with superheated steam which are prepared by reacting: (A) modified diphenylmethane diisocyanates (A) liquid at 23 DEG C. obtained by reacting (A1) 4,4'-diphenylmethane diisocyanate or (A2) 2,4'-diphenylmethane diisocyanate or (A3) a diphenylmethane diisocyanate mixture with (A4) at least one polyoxypropylene polyol and/or (A5) at least one polyoxypropylene polyoxyethylene polyol containing 1 to 80 weight percent of ethylene oxide units whereby (A4) and (A5) have a functionality of 4 to 8 and a hydroxyl number of 150 to 500 and are obtained while using sucrose and/or preferably sorbitol as initiator molecules (A6) a mixture of (A4) and/or (A5) and at least one polyoxypropylene polyol and/or polyoxyethylene polyol initiated with glycerine and/or trimethylolpropane in a NCO:OH group ratio of 2.5:1 to 15:1 with (B) at least one compound having at least reactive hydrogen atoms which preferably contains no primary, secondary or tertiary amino groups in bonded form in the presence of or absence of (C) catalysts. The present invention also relates to a process for the preparation of polyurethane casting compositions and their use for medical-technical articles.
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公开(公告)号:DE3607996A1
公开(公告)日:1987-09-17
申请号:DE3607996
申请日:1986-03-11
Applicant: BASF AG
Inventor: SCHLEIER GISBERT DR , GEROLD FRIEDRICH
IPC: C08G18/10 , C08G18/12 , C08G18/76 , C08L75/04 , C08K5/29 , C08G18/66 , C08G18/42 , C08G18/48 , C08G18/32 , C09D3/72 , C08J3/24
Abstract: This invention relates to moisture tempered, storage stable, single component polyurethane systems prepared from a polyurethane prepolymer derived from an aromatic polyisocyanate, and a polyaldimine, which are used for preparing polyurethane elastomers or polyurethane coatings having improved temperature resistance.
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公开(公告)号:DE3231497A1
公开(公告)日:1984-03-01
申请号:DE3231497
申请日:1982-08-25
Applicant: BASF AG
Inventor: NISSEN DIETMAR DR , HORN PETER DR , HESSE ANTON DR , MARX MATTHIAS DR , GEROLD FRIEDRICH
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