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    Procedimiento para la preparación de fibras huecas hiperramificadas
    5.
    发明专利
    Procedimiento para la preparación de fibras huecas hiperramificadas 未知

    公开(公告)号：ES2459191T3

    公开(公告)日：2014-05-08

    申请号：ES10768955

    申请日：2010-10-26

    Applicant: BASF SE ,  UNIV SINGAPORE

    Inventor： WEBER MARTIN ,  WARZELHAN VOLKER ,  CHUNG TAI-SHUNG ,  WIDJOJO NATALIA

    IPC: D01D4/02 ,  B01D7/00 ,  B01D67/00 ,  B01D69/08 ,  B01D71/78 ,  D01D5/06 ,  D01D5/24 ,  D01F6/66 ,  D01F6/76

    Abstract: Un procedimiento para la preparación de un filamento hueco (F) a base de uno o varios polímeros hiperramificados fundidos o disueltos (P) y, potencialmente, uno o varios polímeros adicionales (FP), caracterizado porque el polímero hiperramificado fundido o disuelto (P) o la mezcla del polímero hiperramificado (P) con el polímero adicional (FP) atraviesa una o varias hileras (S) que tienen una longitud (L) de hilera y un canal de hilera (delta-D), en el que la hilera (S) tiene una geometría (G) que está seleccionada del grupo que consiste en: - una geometría con forma de doble cono con un canal agrandado con un ángulo (αII) de 60° (GII) que tiene una longitud (LII) de hilera entre 0,2 y 4.5 mm y una proporción LII/deltaDII entre 1,2 y 3,0; - una geometría con forma de cono con una salida cónica con un ángulo (αIII) de 60° (GIII) que tiene una 10 longitud (LIII) de hilera entre 0,2 y 4,5 mm y una proporción LIII/deltaDIII entre 1,1 y 2; o - una geometría con forma redonda con un canal de salida redondo con un ángulo (αIV) de 30° (GIV) que tiene una longitud (LIV) de hilera entre 0,2 y 4,5 mm y una proporción LIV/deltaDIV entre 1,1 y 2.

    Biodegradable polymers, process for their production and their use in producing biodegradable mouldings
    7.
    发明专利
    Biodegradable polymers, process for their production and their use in producing biodegradable mouldings 未知

    公开(公告)号：AU2925395A

    公开(公告)日：1996-06-06

    申请号：AU2925395

    申请日：1995-06-27

    Applicant: BASF SE

    Inventor： WARZELHAN VOLKER ,  SCHORNICK GUNNAR ,  BRUCHMANN BERND ,  SEELIGER URSULA ,  YAMAMOTO MOTONORI ,  BAUER PETER

    IPC: C08L3/00 ,  A01G13/02 ,  C08G18/42 ,  C08G18/46 ,  C08G18/66 ,  C08G63/00 ,  C08G63/183 ,  C08G63/20 ,  C08G63/60 ,  C08G63/688 ,  C08G63/91 ,  C08L3/02 ,  C08L67/02 ,  C08L75/06 ,  C08L101/16 ,  C09D167/00 ,  C09K17/52

    Abstract: The following are claimed: (A) biodegradable polyester P1, preparable by reaction of a mixt. comprising: (a1) a mixt. comprising: (a11) 35-95 mol.% of adipic acid and/or one or more ester-forming derivs. of this, (a12) 5-65 mol.% of terephthalic acid and/or one or more ester-forming derivs. of this, and (a13) 0-5 mol.% of a cpd. contg. sulphonate gps., the total of mol.% in (a11)-(a13) being 100 mol.%; and (a2) a dihydroxy cpd. selected from 2-6C alkane-diols and 5-10C cycloalkane-diols. The molar ratio of (a1) to (a2) is 0.4-1.5:1. In addn., 0.01-5 mol.% (based on the molar amt. of component (a1)) of a cpd. D, which comprises at least three gps. capable of forming ester gps., are also used for prodn. of polyester P1. Polyester P1 has (a) a mol.wt. (Mn) of 5000-50000 g/mol; (b) a viscosity no. of 30-350 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a P1 concn. of 0.5 wt.%); and (c) a m.pt. of 50-170 degrees C. (B) biodegradable polyester P2, preparable by reaction of a mixt. comprising: (b1) mixt. comprising: (b11) 20-95 mol.% of adipic acid and/or one or more ester-forming deriv. of this, (b12) 5-80 mol.% of terephthalic acid and/or one or more ester- forming deriv. of this, and (b13) 0-5 mol.% of a cpd. contg. sulphonate gps., the total of mol.% in (b11)-(b13) being 100 mol.%; (b2) a dihydroxy cpd. as (a2) above; (b3) 0.01-100 wt.% (based on the amt. of component (b1) of a hydroxycarboxylic acid B1 which is of formula (Ia) or (Ib); and (b4) 0-5 mol.% (based on the amt. of component (b1)) of a cpd. D. The molar ratio of (b1) to (b2) is 0.4-1.25:1. Polyester P2 has (a) a mol.wt. (Mn) of 5000-80000 g/mol; (b) a viscosity no. of 30 - 450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a P2 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. p = a whole no. from 1-1500; r = a whole no. from 1-4; G = phenylene, (CH2)k, C(R)H and C(R)HCH2; k = 1-5; R = Me or Et. (C) biodegradable polyester Q1 which have: (a) a mol.wt. (Mn) of 5000-100000 g/mol; (b) a viscosity no. of 30-450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a Q1 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. Q1 are obtained by reaction of a mixt. comprising; (c1) polyester P1 and/or a polyester PWD; (c2) 0.01-50 wt.% (based on (c1)) of a hydroxycarboxylic acid B1; and (c3) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of P1 and/or PWD) of a cpd. D. Polyester PWD is obtainable by reaction of components (a1) and (a2) in a molar ratio of (a1) to (a2) of 0.4-1.5:1. Polyester PWD have: (a) a mol.wt. (Mn) of 5000 - 50000 g/mol; (b) a viscosity no. of 30 - 350 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a PWD concn. of 0.5 wt.%); and (c) a m.pt. of 50-170 degrees C. (D) biodegradable polyesters Q2 which have: (a) a mol.wt. (Mn) of 6000 - 60000 g/mol; (b) a viscosity no. of 30-350 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a Q2 concn. of 0.5 wt.%); and (c) a m.pt. of 50-170 degrees C. Q2 are obtained by reaction of a mixt. comprising: (d1) 95-99.9 wt.% of polyester P1 and/or PWD; and (d2) 0.1-50 wt.% of a diisocyanate C1; and (d3) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of P1 and/or PWD) of a cpd. D. (E) biodegradable polymers T1 which have: (a) a mol.wt. (Mn) of 10000 - 100000 g/mol; (b) a viscosity no. of 30-450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a T1 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. T1 are obtd. by reaction of polyester Q1 with (e1) 0.1-5 wt.% (based on the amt. of Q1) of diisocyanate C1 and (e2) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of Q1 via the polyester P1 and/or PWD) of a cpd. D. (F) biodegradable polymers T2 which have: (a) a mol.wt. (Mn) of 10000 - 100000 g/mol/. (b) a viscosity no. of 30-450 g/ml (measured in o-dichlorobenzene/phenol (wt. ratio 50/50) at 25 degrees C and a T2 concn. of 0.5 wt.%); and (c) a m.pt. of 50-235 degrees C. T2 are obtained by reaction of polyester Q2 with (f1) 0.01-50 wt.% (based on the amt. of Q2) of hydroxycarboxylic acid B1 and (f2) 0-5 mol.% (based on the amt. of component (a1) used in prodn. of Q2 via the polyester P1 and/or PWD) of a cpd

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