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    ULTRAHIGH MODULUS YARN PRODUCT HAVING EXCELLENT MECHANICAL CHARACTERISTIC AND ITS PRODUCTION
    1.
    发明专利
    ULTRAHIGH MODULUS YARN PRODUCT HAVING EXCELLENT MECHANICAL CHARACTERISTIC AND ITS PRODUCTION 失效

    公开(公告)号：JPH0841240A

    公开(公告)日：1996-02-13

    申请号：JP69095

    申请日：1995-01-06

    Applicant: POLTECO INC

    Inventor： ANAGUNOSUTEISU II ZAKARAIADESU ,  PUREMARU SHIYUKURA

    IPC: A01K91/00 ,  A61C15/04 ,  B29C55/00 ,  B29D7/01 ,  C08J9/28 ,  D01F6/04

    Abstract: Thermoplastic tape, ribbon or line material is prepd. as follows: (a) a melt-crystallised precursor polyethylene tape (I) of mol. wt. above 300,000 is immersed in a liq. bath at ca. 130 [deg]C until it has swelled into a pseudo-gel state; (b) the swollen tape is compressed lightly then treated with a solvent to remove all residual bath liq.; (c) the tape is heated to remove all residual solvent and provide a dried porous prod. with higher porosity than the original (I); (d) the prod. is compressed at 100,300,000 psi (depending on the thickness), and (e) the tape is stretched at 80-130 [deg]C to afford a drawn prod. with increased mechanical props. including a modulus 0.5-100 GPa, and tensile strength 0.1-2 GPa.

    PROCESS FOR OBTAINING ULTRA-HIGH MODULUS LINE PRODUCTS WITH ENHANCED MECHANICAL PROPERTIES
    2.
    发明专利
    PROCESS FOR OBTAINING ULTRA-HIGH MODULUS LINE PRODUCTS WITH ENHANCED MECHANICAL PROPERTIES 未知

    公开(公告)号：CA2138588A1

    公开(公告)日：1995-07-07

    申请号：CA2138588

    申请日：1994-12-20

    Applicant: POLTECO INC

    Inventor： ZACHARIADES ANAGNOSTIS E ,  SHUKLA PREMAL

    IPC: A01K91/00 ,  A61C15/04 ,  B29C55/00 ,  B29D7/01 ,  C08J9/28 ,  D01F6/04 ,  C08J7/02 ,  B29C69/00

    Abstract: A method of producing high modulus and high strength products of polyethylene and other thermoplastic polymers by swelling with a suitable solvent a melt crystallized, or compacted powder morphology to form a pseudo-gel, drying the pseudo-gel, compressing it, and drawing it. The optimum process involves swelling the initial morphology in the form of a tape/ribbon/rod/monofilament/sheet/tube in a non-volatile solvent at temperatures near the polymer crystalline melting point, cooling the morphology under controlled conditions, lightly compressing it to remove the non-volatile solvent, extracting the non-volatile solvent by volatile solvent, removing the volatile solvent by evaporation or vacuum, compressing the morphology between rolls, and then stretching it at temperatures below the crystalline melting point of the polymer to obtain tapes, ribbons, monofilaments, sheets or tubes with improved mechanical properties. Products from the method include improved dental floss, fishing line and numerous other applications.

    3.
    发明专利
    未知

    公开(公告)号：DE69431100D1

    公开(公告)日：2002-09-05

    申请号：DE69431100

    申请日：1994-12-20

    Applicant: POLTECO INC

    Inventor： ZACHARIADES ANAGNOSTIS E ,  SHUKLA PREMAL

    IPC: A01K91/00 ,  A61C15/04 ,  B29C55/00 ,  B29D7/01 ,  C08J9/28 ,  D01F6/04 ,  B29C55/18

    Abstract: Thermoplastic tape, ribbon or line material is prepd. as follows: (a) a melt-crystallised precursor polyethylene tape (I) of mol. wt. above 300,000 is immersed in a liq. bath at ca. 130 [deg]C until it has swelled into a pseudo-gel state; (b) the swollen tape is compressed lightly then treated with a solvent to remove all residual bath liq.; (c) the tape is heated to remove all residual solvent and provide a dried porous prod. with higher porosity than the original (I); (d) the prod. is compressed at 100,300,000 psi (depending on the thickness), and (e) the tape is stretched at 80-130 [deg]C to afford a drawn prod. with increased mechanical props. including a modulus 0.5-100 GPa, and tensile strength 0.1-2 GPa.

    4.
    发明专利
    未知

    公开(公告)号：DE69431100T2

    公开(公告)日：2003-02-06

    申请号：DE69431100

    申请日：1994-12-20

    Applicant: POLTECO INC

    Inventor： ZACHARIADES ANAGNOSTIS E ,  SHUKLA PREMAL

    IPC: A01K91/00 ,  A61C15/04 ,  B29C55/00 ,  B29D7/01 ,  C08J9/28 ,  D01F6/04 ,  B29C55/18

    Abstract: Thermoplastic tape, ribbon or line material is prepd. as follows: (a) a melt-crystallised precursor polyethylene tape (I) of mol. wt. above 300,000 is immersed in a liq. bath at ca. 130 [deg]C until it has swelled into a pseudo-gel state; (b) the swollen tape is compressed lightly then treated with a solvent to remove all residual bath liq.; (c) the tape is heated to remove all residual solvent and provide a dried porous prod. with higher porosity than the original (I); (d) the prod. is compressed at 100,300,000 psi (depending on the thickness), and (e) the tape is stretched at 80-130 [deg]C to afford a drawn prod. with increased mechanical props. including a modulus 0.5-100 GPa, and tensile strength 0.1-2 GPa.

    8.
    发明专利
    未知

    公开(公告)号：AT221449T

    公开(公告)日：2002-08-15

    申请号：AT94120172

    申请日：1994-12-20

    Applicant: POLTECO INC

    Inventor： ZACHARIADES ANAGNOSTIS E ,  SHUKLA PREMAL

    IPC: A01K91/00 ,  A61C15/04 ,  B29C55/00 ,  B29D7/01 ,  C08J9/28 ,  D01F6/04 ,  B29C55/18 ,  B29K23/00

    Abstract: Thermoplastic tape, ribbon or line material is prepd. as follows: (a) a melt-crystallised precursor polyethylene tape (I) of mol. wt. above 300,000 is immersed in a liq. bath at ca. 130 [deg]C until it has swelled into a pseudo-gel state; (b) the swollen tape is compressed lightly then treated with a solvent to remove all residual bath liq.; (c) the tape is heated to remove all residual solvent and provide a dried porous prod. with higher porosity than the original (I); (d) the prod. is compressed at 100,300,000 psi (depending on the thickness), and (e) the tape is stretched at 80-130 [deg]C to afford a drawn prod. with increased mechanical props. including a modulus 0.5-100 GPa, and tensile strength 0.1-2 GPa.

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