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公开(公告)号:DE3014579A1
公开(公告)日:1981-10-22
申请号:DE3014579
申请日:1980-04-16
Applicant: BASF AG
Inventor: HORN PETER DIPL CHEM DR , CORDES CLAUS DIPL CHEM DR , WERTHER HEINZ-ULRICH DIPL CHEM , ZUERGER MANFRED ING GRAD , REIMANN HORST DIPL CHEM DR
IPC: C08F283/04 , C08L77/00 , G03F7/037 , C08J3/28 , G03C1/70
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公开(公告)号:DE2450776A1
公开(公告)日:1976-05-06
申请号:DE2450776
申请日:1974-10-25
Applicant: BASF AG
Inventor: ZAHN ERWIN DIPL CHEM DR , CORDES CLAUS DIPL CHEM DR , ZAHRADNIK FRANZ DIPL CHEM DR , WEISS HANS-PETER DIPL CHEM DR
Abstract: Process for producing plain foils from poly-epsilon-caprolactam or from its copolymers contg. >70% caprolactam, by extruding the melt over a fishtail die onto a cooling roller and drawing off the faoil formed, takes place by (i) using a polycaprolactam having relative viscosity 2.4-3.3 (2.5-2.8) and which contains 0.0005-0.5(0.001-0.01)% crystalline Mg silicates of particles size 30 mu, evenly and finely distributed, and (2) drawing off the melt leaving fishtail die at a drawing-off rate >30 (esp. >50)m/min. from cooling roller to a foil having thickness 50 mu. The foils can be used e.g., as packaging matl. Foils (i) have outstanding props. in use and processing, e.g., behaviour in machines for further processing; high speed of drawing off allows quick processing rates, and foils are easily lined, laminated and printed; (ii) are highly transparent and bright; (iii) process can be carried out at lower melting temps. than with standard high mol. wt. polyamides, thus reducing formation of decompsn. prodts. and cleaning intervals of machine parts.
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公开(公告)号:DE2840502A1
公开(公告)日:1980-03-27
申请号:DE2840502
申请日:1978-09-18
Applicant: BASF AG
Inventor: DENZINGER WALTER , CORDES CLAUS DIPL CHEM DR
IPC: C08F220/00 , C08F210/14 , C08F220/04 , C08F222/06
Abstract: Terpolymers which have Fikentscher K-values of from 8 to 100 and comprise 50 mole percent of maleic anhydride units, from 35 to 45 mole percent of 2,4,4'-trimethylpent-1-ene units and from 5 to 15 mole percent of 2,4,4'-trimethylpent-2-ene units, and processes for their preparation by polymerizing 50 parts by weight of maleic anhydride, from 35 to 180 parts by weight of 2,4,4'-trimethylpent-1-ene and from 0.6 to 6 parts by weight of 2,4,4'-trimethylpent-2-ene per part by weight of 2,4,4'-trimethylpent-1-ene employed, in the presence of a free-radical initiator at from 60 DEG to 200 DEG C. and a pressure of from 1 to 20 bar, and separating the terpolymers from the unconverted monomers.
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公开(公告)号:DE2827760A1
公开(公告)日:1980-01-10
申请号:DE2827760
申请日:1978-06-24
Applicant: BASF AG
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公开(公告)号:DE2603671A1
公开(公告)日:1977-08-04
申请号:DE2603671
申请日:1976-01-31
Applicant: BASF AG
Inventor: BLINNE GERD DIPL CHEM DR , CORDES CLAUS DIPL CHEM DR
IPC: C08G63/688 , C08G75/20
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公开(公告)号:DE2522901A1
公开(公告)日:1976-12-09
申请号:DE2522901
申请日:1975-05-23
Applicant: BASF AG
Abstract: Stabilized polyester molding compositions in which the stabilizer is a carbodiimide of the formula where R is hydrogen, alkyl, halogen or nitro, at least one of the substituents R in the ortho-position to the carbodiimide group must differ from hydrogen, and the carbodiimide molecule contains, as substituents R, 2 alkyl groups and 2 nitro groups, or from 4 to 6 chlorine atoms, or 2 alkyl groups and from 4 to 6 chlorine atoms, or 2 chlorine atoms and 2 nitro groups, or 4 chlorine atoms and 2 bromine atoms.
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公开(公告)号:DE2643204A1
公开(公告)日:1978-04-06
申请号:DE2643204
申请日:1976-09-25
Applicant: BASF AG
Inventor: CORDES CLAUS DIPL CHEM DR , HORN PETER DIPL CHEM DR , WEISS HANS-PETER DIPL CHEM DR , GUTSCHE HERBERT DIPL ING
Abstract: Thermoplastic nylons are stabilized with copper compounds and synergistic halides by incorporation of from 0.1 to 10% of a concentrate of nylon, copper bromide or iodide and calcium bromide, zinc bromide or magnesium bromide. The stabilized nylons may be thermoplastically processed to give semimanufactures or films.
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