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    Manufacture of poromeric materials
    1.
    发明授权
    Manufacture of poromeric materials 失效
    多孔材料的制造

    公开(公告)号：US3876446A

    公开(公告)日：1975-04-08

    申请号：US32521473

    申请日：1973-01-19

    Applicant: BASF AG

    Inventor： BLECKMANN GERHARD ,  SANNER AXEL ,  SCHLEMMER LOTHAR ,  WIGGER AUGUST

    IPC: C08J9/00 ,  B29C67/20 ,  C08F2/46 ,  C08F283/01 ,  C08F291/18 ,  C08J9/28 ,  B44D1/50 ,  C08F3/00

    CPC classification number: C08J9/283 ,  B29C67/202 ,  C08F2/46 ,  C08F283/01 ,  C08F291/18 ,  C08J2201/0504

    Abstract: Poromeric web materials are continuously manufactured by applying to a thin layer of ice crystals a textile fibrous structure and an aqueous solution or dispersion of A. polyethylenically unsaturated monomers having at least two polymerizable double bonds or mixtures of at least 0.1 percent w/w of such polyethylenically unsaturated monomers and monoethylenically unsaturated copolymerizable monomers and optionally high molecular weight polymers, or B. monoethylenically unsaturated monomers and high polymers having molecular weights of more than 10,000, Cooling the whole to such an extent that at least 50 percent of the water Crystallizes, irradiating the solidified structure with electromagnetic radiation having a wavelength of less than 0.70 .mu.m to cause polymerization of the monomers, causing the structure to thaw, removing the material from the support and optionally washing the removed material, separating it from the water and finally drying it.

    Production of biaxially oriented polyamide film
    2.
    发明授权
    Production of biaxially oriented polyamide film 失效
    双面聚酰亚胺薄膜的生产

    公开(公告)号：US3652759A

    公开(公告)日：1972-03-28

    申请号：US3652759D

    申请日：1970-01-08

    Applicant: BASF AG

    Inventor： SCHLEMMER LOTHAR ,  SABATER EUDALDO ,  KRESS GERHARD

    IPC: B29C55/14 ,  B29C71/00 ,  B29D7/24

    CPC classification number: B29C55/143 ,  B29C71/00 ,  B29K2077/00

    Abstract: IMPROVED BIAXIALLY ORIENTED POLYAMIDE FIL, PARTICULARLY SUITABLE FOR PACKAGING APPLICATIONS, MAY BE MADE FROM AMORPHOUS FILM OR SHEETING BY DRAWING THE SAME IN THE MACHINE DIRECTIN AT A DRAW RATIO OF 2.5:1 TO 4:1, DRAWING BEING EFFECTED IN THE FREE PATHS IN THE GAPS BETWEEN NONDRIVEN DRAW ROLLS OF DIAMETER 40 TO 150 MM., SAID FREE PATHS BEING LESS THAN 22 MM. LONG IN ALL CASES AND SAID ROLLS BEING HELD AT SPECIFIC TEMPERATURES DEPENDING ON THEIR PERIPHERAL SPEEDS, AND THEN DRAWING THE SHEETING TRANSVERSELY AT A DRAW RATION OF 3:1 TO 6:1 AND AT A TEMPERATURE OF 165 TO 205*C.

    4.
    发明专利
    未知

    公开(公告)号：DE4107665A1

    公开(公告)日：1992-09-10

    申请号：DE4107665

    申请日：1991-03-09

    Applicant: BASF AG

    Inventor： BROSIUS SIBYLLE DR ,  SEILER ERHARD DR ,  SCHWAGER HARALD DR ,  KRESS GERHARD DR ,  SCHLEMMER LOTHAR

    IPC: C08F255/02

    Abstract: Partially crosslinked polymer composition containing a) a polymer comprising from 25 to 95% by weight of polypropylene and from 5 to 75% by weight of a propylene copolymer containing copolymerized C2-C10-alk-1-enes, where the comonomer content is from 1 to 45% by weight, based on the total polymer, b) a random ethylene copolymer containing from 5 to 20% by weight of copolymerized C3-C10-alk-1-enes and having a density at room temperature of from 0.89 to 0.925 g/cm and c) an organosilane compound of the formula (I> A4-n-SiRn (I> in which the A radicals are identical or different and are acrylates or methacrylates or vinyl groups, the R radicals are identical or different and are C1-C8-alkoxy or C1-C8-acetoxy groups, and n is the number 1, 2 or 3, obtainable by reacting a polymer mixture of the polymer a) and the random ethylene copolymer b) with the organosilane compound c) in the presence of a free-radical initiator and in the presence of a condensation catalyst, at temperatures of from 180 to 280 DEG C, pressures of from 1 to 100 bar and mean residence times of the reaction mixture of from 0.2 to 10 minutes.

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