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1.发明申请公开(公告)号：US20200208302A1
公开(公告)日：2020-07-02
申请号：US16813246
申请日：2020-03-09
Applicant: TRUETZSCHLER GMBH & CO. KG , DSM IP ASSETS B.V.
Inventor： Lassad NASRI , Roman STEPANYAN , Martinus Joseph Maria KEULERS
Abstract: An apparatus for production of a low-shrinkage aliphatic polyamide fibre, in which polyamide is extruded through a spinneret to form filaments, then cooled and combined to form at least one yarn. The at least one yarn is subjected to drawing between the spinneret and a pair of inlet rolls, then in a further multi-stage drawing step is subjected to 4-fold to 6-fold drawing by pairs of draw rolls. The pairs of draw rolls successively heat the yarn and at least the last pair of draw rolls has a temperature of 5° C. to 20° C. below the melting point of the yarn. The yarn is relaxed by from 6% to 10% in a subsequent at least three-stage relaxation zone and is kept in a temperature range of 5° C. to 15° C. below the melting point of the yarn, and is subsequently wound up on a reel device.
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2.发明申请公开(公告)号：US20210330025A1
公开(公告)日：2021-10-28
申请号：US17271423
申请日：2019-09-03
Applicant: DSM IP ASSETS B.V.
Inventor： Alwin PAPEGAAIJ , Roman STEPANYAN , Jan Hendrikus UDDING
Abstract: The present invention pertains to a new shoe comprising a sole of a thermoplastic material adhered to an upper shoe with a hot melt adhesive that is applied between the sole and the upper shoe, wherein the hot melt adhesive is fused with the thermoplastic material. Advantageously, the fusion is brought about by heating the hot melt adhesive to a temperature THM such that it softens, heating the second body such that the thermoplastic material that has a melting temperature TM obtains a temperature TSUB below TM while making sure that (THM+TSUB)/2 is equal to or higher than (TM−10° C.).
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公开(公告)号：US20190301057A1
公开(公告)日：2019-10-03
申请号：US16446489
申请日：2019-06-19
Applicant: DSM IP ASSETS B.V.
Inventor： Martinus Joseph Maria KEULERS , Roman STEPANYAN , Hao CHEN
Abstract: Yarns are formed of a copolyamide in an amount of at least 90 wt % with respect to the total weight of the yarn, wherein copolyamide includes (a) at least 95 wt % by weight with respect to the total weight of copolyamide, monomeric units derived from hexamethylene diamine and adipic acid and (b1) cyclic monomeric units derived from a diamine X, and cyclic monomeric units derived from a diacid Y, and/or b2) cyclic monomeric units derived from an amino acid Z. The summed amount of monomeric units derived from X, Y and Z is between 0.1 to 4.5 wt % by weight with respect to the total weight of the copolyamide. The yarns have a tensile strength of at least 80 cN/tex as measured according to ASTM D885-04.
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公开(公告)号：US20190284726A1
公开(公告)日：2019-09-19
申请号：US16318778
申请日：2017-07-21
Applicant: DSM IP Assets B.V.
Inventor： Harm VAN DER WERFF , Bengisu CORAKCI , Roman STEPANYAN
Abstract: The present invention relates to a process for making high-strength polylactic acid elongated object comprising the steps of making a solution of polylactic acid in a solvent at a concentration of 5 to 50 mass %; spinning the solution through a spinplate comprising at least 1 spinhole to form a fluid elongated object; cooling the fluid elongated object with a cooling medium to form a solvent-containing gel elongated object; removing at least partly the solvent from the gel elongated object to form a solid elongated object; and drawing the elongated object while applying a draw ratio of at least 2, to form a high strength PLA elongated object, characterized in that the cooling medium has a temperature Tq of less than 0° C. The present invention also relates to gel-spun elongated objects comprising PLA with an IV in the range of 4-40 dl/g, and having a tenacity in N/tex such that Ten≥0.146*IV, as well as gel-spun elongated object having a tenacity and a filament titer in tex (t) such that Ten≥1.40*t −0.3. The invention also relates to articles containing said gel-spun elongated objects.
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公开(公告)号：US20190118455A1
公开(公告)日：2019-04-25
申请号：US16090647
申请日：2017-04-03
Applicant: DSM IP Assets B.V.
Inventor： Roman STEPANYAN , Hao CHEN
Abstract: The invention relates to a process for preparing a sequentially stretched biaxially oriented film, comprising the following steps: a) Melting a composition comprising at least 50 wt % with respect to the total amount of the composition of a copolyamide comprising: i. At least 75 wt % monomeric units derived from caprolactam, and further monomeric units derived from diamines X and/or diacids Y and/or aminoacids Z in a summed amount of between 0.2 to 25 wt %; or ii. At least 75 wt % monomeric units derived from hexamethylene diamine and adipic acid, and further monomeric units derived from diamines X and/or diacids Y and/or aminoacids Z in a summed amount of between 0.2 to 25 wt %; into a polymer melt; b) Casting the polymer melt through a planar die to form a film of at least one layer and subsequently quenching the film to a temperature of below Tg of the copolyamide, while the film is transported in a direction, referred to as machine direction; c) Stretching the film obtained after quenching in a direction parallel to the machine direction (MD-stretching) with a draw ratio DRMD at a temperature of at least Tg of the copolyamide; d) Stretching the film obtained after MD stretching in a direction transversal to the machine direction (TD-stretching) with a draw ratio DRTD at a temperature of at least Tg+10° C. of the copolyamide; e) Heat setting the film obtained after cooling and stretching, at a temperature of between Tm−70° C. and Tm of the copolyamide; in which Tg and Tm of the copolyamide are determined as described by ASTM D3418-03, with a heating and cooling rate of 10° C. per minute, in which DRMD/DRTD is at least 0.8 and DRMD×DRTD is at least 10. The invention also relates to sequentially stretched biaxially oriented film.
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Patent Agency Ranking
6.发明申请公开(公告)号：US20170327972A1
公开(公告)日：2017-11-16
申请号：US15537866
申请日：2015-12-05
Applicant: TRUETZSCHLER GMBH & CO. KG , DSM IP ASSETS B.V.
Inventor： Lassad NASRI , Roman STEPANYAN , Martinus Joseph Maria KEULERS
Abstract: A process and an apparatus for production of a low-shrinkage aliphatic polyamide fibre, in which polyamide is extruded through a spinneret to form filaments, then cooled and combined to form at least one yarn. The at least one yarn is subjected to drawing between the spinneret and a pair of inlet rolls, then in a further multi-stage drawing step is subjected to 4-fold to 6-fold drawing by pairs of draw rolls. The pairs of draw rolls successively heat the yarn and at least the last pair of draw rolls has a temperature of 5° C. to 20° C. below the melting point of the yarn. The yarn is relaxed by from 6% to 10% in a subsequent at least three-stage relaxation zone and is kept in a temperature range of 5° C. to 15° C. below the melting point of the yarn, and is subsequently wound up on a reel device. The invention further relates to a yarn composed of a low-shrinkage aliphatic polyamide fibre.
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公开(公告)号：US20180355515A1
公开(公告)日：2018-12-13
申请号：US15781789
申请日：2016-12-12
Applicant: DSM IP Assets B.V.
Inventor： Tom Antonius Philomena ENGELS , Gert DE CREMER , Romain BERTHOUD , Roman STEPANYAN , Peter ROOZEMOND , Filip Stefan Emiel OOSTERLINCK , John Richard SEVERN
Abstract: The invention relates to a process for the preparation of a gel spun UHMWPE fiber comprising the steps of providing an ultra high molecular weight polyethylene composition having an intrinsic viscosity (IV) of at least 8 dl/g, a co-monomer content (CBR) of a least 0.05 SCB/1000TC, a mass averaged distribution of the co-monomer (CMAD) of at least 0.05, wherein the co-monomer has at least 4 carbon atoms, dissolving the composition in a solvent to form a polymer solution having a UHMWPE concentration of between 2 and 40 wt %, spinning the polymer solution through a multi orifice die plate to form a solution fibers, cooling the solution fiber to below 80° C. to form a gel fiber, drawing the fiber in at least one step to form a drawn fiber, removing at least a portion of the solvent before, during or after the drawing, wherein the ratio CMAD to CBR is greater than 1.0. The invention further relates to a gel-spun UHMWPE fiber obtainable by the process and products comprising said gel-spun UHMWPE fiber.
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公开(公告)号：US20180038019A1
公开(公告)日：2018-02-08
申请号：US15551633
申请日：2016-02-23
Applicant: DSM IP ASSETS B.V.
Inventor： Martinus Joseph Maria KEULERS , Roman STEPANYAN , Hao CHEN
CPC classification number: D02G3/04 , D01D5/16 , D01F6/80 , D02G3/446 , D10B2331/02 , D10B2505/022 , D10B2505/124
Abstract: The invention relates to a yarn comprising a copolyamide in an amount of at least 90 wt % with respect to the total weight of the yarn, which copolyamide comprises a) at least 95 wt % by weight with respect to the total weight of copolyamide, monomeric units derived from hexamethylene diamine and adipic acid and b1) cyclic monomeric units derived from a diamine X, and cyclic monomeric units derived from a diacid Y, and/or b2) cyclic monomeric units derived from an amino acid Z, in which the summed amount of monomeric units derived from X, Y and Z is between 0.1 to 4.5 wt % by weight with respect to the total weight of the copolyamide and wherein the yarn has a tensile strength of at least 80 cN/tex as measured according to ASTM D885-04. The invention also relates to a process for preparing the yarn.
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公开(公告)号：US20180030621A1
公开(公告)日：2018-02-01
申请号：US15552085
申请日：2016-02-23
Applicant: DSM IP ASSETS B.V.
Inventor： Martinus Joseph Maria KEULERS , Roman STEPANYAN , Hao CHEN
IPC: D01F6/80 , B60R21/235 , D02G3/44
CPC classification number: D01F6/80 , B60R21/16 , B60R21/235 , D02G3/446 , D10B2331/02 , D10B2505/022 , D10B2505/124
Abstract: The invention relates to a Yarn comprising a copolyamide in an amount of at least 90 wt % with respect to the total weight of the yarn, which copolyamide comprises a) at least 95 wt % with respect to the total weight of copolyamide, monomeric units derived from epsilon-caprolactam and b1) cyclic monomeric units derived from a diamine X, and cyclic monomeric units derived from a diacid Y, and/or b2) cyclic monomeric units derived from an amino acid Z, in which the summed amount of monomeric units derived from X,Y and Z is between 0.1 to 4.5 wt % with respect to the total weight of the copolyamide and wherein the yarn has a tensile strength of at least 80 cN/tex as measured according to ASTM D885-04. The invention also relates to a process for preparing the yarn.
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公开(公告)号：US20170327653A1
公开(公告)日：2017-11-16
申请号：US15525639
申请日：2015-11-12
Applicant: DSM IP ASSETS B.V.
Inventor： Hao CHEN , Alexander Antonius Marie STROEKS , Roman STEPANYAN
CPC classification number: C08J5/18 , B29C48/146 , C08J2377/02 , C08J2477/06
Abstract: The invention relates to a process for preparing a biaxially oriented film, comprising the following steps: a) Melting a composition comprising at least 50 wt % with respect to the total amount of the composition of a copolyamide comprising: i. At least 75 wt % monomeric units derived from caprolactam, and further monomeric units derived from diamines X and/or diacids Y and/or aminoacids Z in a summed amount of between 0.2 to 25 wt %; or ii. At least 75 wt % monomeric units derived from hexamethylene diamine and adipic acid, and further monomeric units derived from diamines X and/or diacids Y and/or aminoacids Z in a summed amount of between 0.2 to 25 wt %; into a polymer melt; b) Casting the polymer melt through a planar die to form a film of at least one layer and subsequently quenching the film to a temperature of below Tg of the copolyamide; c) Stretching the film obtained after quenching in a direction parallel to the machine (MD-stretching) with a factor of at least 2 at a temperature of at least Tg of the copolyamide; d) Stretching the film obtained after MD stretching in a direction transversal to the machine (TD-stretching) with a factor of at least 2 at a temperature of at least Tg+10° C. of the copolyamide; e) Cooling the obtained film after TD-stretching; f) Heat setting the film obtained after cooling, at a temperature of between Tm−70° C. and Tm of the copolyamide; in which Tg and Tm of the copolyamide are determined as described by ASTM D3418-03. The invention also relates to a biaxially oriented film and food packaging obtainable by this process.
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