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1.发明专利
公开(公告)号：JPS63152407A
公开(公告)日：1988-06-24
申请号：JP29164287
申请日：1987-11-17
Applicant: STAMICARBON
Inventor： SCHELLEKENS RONALD MICHAEL ALE
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公开(公告)号：AU589436B2
公开(公告)日：1989-10-12
申请号：AU6165386
申请日：1986-08-20
Applicant: STAMICARBON
Abstract: High modulus and high strength articles of polyvinyl-alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solution of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.
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3.发明专利
公开(公告)号：ZA8409563B
公开(公告)日：1985-07-31
申请号：ZA8409563
申请日：1984-12-07
Applicant: STAMICARBON
Inventor： SCHELLEKENS RONALD MICHAEL ALE , LEMSTRA PIETER JAN
CPC classification number: D01F6/38 , B29D7/00 , B29K2033/18 , B29K2233/18 , D01F6/18
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公开(公告)号：AT66256T
公开(公告)日：1991-08-15
申请号：AT87202232
申请日：1987-11-16
Applicant: STAMICARBON
Inventor： SCHELLEKENS RONALD MICHAEL ALE
IPC: B29C55/00 , B29K55/00 , C08F16/02 , C08F216/06 , C08J5/18 , C08L29/04 , D01D5/00 , D01F6/14 , D01F6/30 , D01F6/34
Abstract: The invention relates to an object and a process for the preparation of an object from an ethylene-vinyl alcohol copolymer with high tensile strength and modulus, by converting: a) a solution of an ethylene-vinyl alcohol copolymer with a weight-average molecular weight above 6 x 10 kg/Kmole into a shaped, solvent-containing object in a suitable solvent or mixture of solvents; b) converting this object into a gel object with a homogeneous gelstructure by rapid cooling to below the gelation temperature; c) removing the solvent present in this gel object for the most part d) Drawing the gel object during or after solvent removal at a temperature above the glass transition temperature but below the melting temperature of the copolymer. n
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公开(公告)号：AT48446T
公开(公告)日：1989-12-15
申请号：AT86201436
申请日：1986-08-19
Applicant: STAMICARBON
Abstract: High modulus and high strength articles of polyvinyl-alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solution of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.
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Patent Agency Ranking
公开(公告)号：AU3638784A
公开(公告)日：1985-06-13
申请号：AU3638784
申请日：1984-12-07
Applicant: STAMICARBON
Inventor： SCHELLEKENS RONALD MICHAEL ALE , LEMSTRA PIETER JAN
Abstract: Polyacrylonitrile articles, such as filaments, tapes and films, having high tensile strength and modulus, and prepared by adding to a solution of polyacrilontrile with a molecular weight above 3 x 10 5 , pref. above 5 x 10 5 , a minor amount of a bivalent metal compound, converting the solution into a solvent containing article, cooling this article to form a gelarticle, removing from this gel the solvent and metal compound, and stretching the resulting article at increased temperature.With this process filaments with a tensile strength above 1.2 GPa and a modulus above 16 GPa can be obtained.
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公开(公告)号：DE3772174D1
公开(公告)日：1991-09-19
申请号：DE3772174
申请日：1987-11-16
Applicant: STAMICARBON
Inventor： SCHELLEKENS RONALD MICHAEL ALE
IPC: B29C55/00 , B29K55/00 , C08F16/02 , C08F216/06 , C08J5/18 , C08L29/04 , D01D5/00 , D01F6/14 , D01F6/30 , D01F6/34
Abstract: The invention relates to an object and a process for the preparation of an object from an ethylene-vinyl alcohol copolymer with high tensile strength and modulus, by converting: a) a solution of an ethylene-vinyl alcohol copolymer with a weight-average molecular weight above 6 x 10 kg/Kmole into a shaped, solvent-containing object in a suitable solvent or mixture of solvents; b) converting this object into a gel object with a homogeneous gelstructure by rapid cooling to below the gelation temperature; c) removing the solvent present in this gel object for the most part d) Drawing the gel object during or after solvent removal at a temperature above the glass transition temperature but below the melting temperature of the copolymer. n
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公开(公告)号：DE3667307D1
公开(公告)日：1990-01-11
申请号：DE3667307
申请日：1986-08-19
Applicant: STAMICARBON
Abstract: High modulus and high strength articles of polyvinyl-alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solution of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.
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公开(公告)号：AU6165386A
公开(公告)日：1987-02-26
申请号：AU6165386
申请日：1986-08-20
Applicant: STAMICARBON
Abstract: High modulus and high strength articles of polyvinyl-alcohol are obtained by thermoreversible gelation of a 5-50 wt.% solution of a polyvinylalcohol with an M w of 2.5 × 10⁴ to 5 × 10⁵ in water, followed by solvent removal and high stretching.Pref. gelation is obtained by cooling to a temperature of at least 40 ◊C below the gelation temperature.With this process low costs of solvent removal and regeneration are obtained.
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10.发明专利
公开(公告)号：ZA849563B
公开(公告)日：1985-07-31
申请号：ZA849563
申请日：1984-12-07
Applicant: STAMICARBON
Inventor： SCHELLEKENS RONALD MICHAEL ALE , LEMSTRA PIETER JAN
Abstract: Polyacrylonitrile articles, such as filaments, tapes and films, having high tensile strength and modulus, and prepared by adding to a solution of polyacrilontrile with a molecular weight above 3 x 10 5 , pref. above 5 x 10 5 , a minor amount of a bivalent metal compound, converting the solution into a solvent containing article, cooling this article to form a gelarticle, removing from this gel the solvent and metal compound, and stretching the resulting article at increased temperature.With this process filaments with a tensile strength above 1.2 GPa and a modulus above 16 GPa can be obtained.
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