WO2000077515A3 - Process for determining the polymer concentration in a spinning dope solution - Google Patents

Process for determining the polymer concentration in a spinning dope solution Download PDF

Info

Publication number
WO2000077515A3
WO2000077515A3 PCT/EP2000/004729 EP0004729W WO0077515A3 WO 2000077515 A3 WO2000077515 A3 WO 2000077515A3 EP 0004729 W EP0004729 W EP 0004729W WO 0077515 A3 WO0077515 A3 WO 0077515A3
Authority
WO
WIPO (PCT)
Prior art keywords
determining
spinning dope
polymer concentration
dope solution
solution
Prior art date
Application number
PCT/EP2000/004729
Other languages
French (fr)
Other versions
WO2000077515A2 (en
Inventor
Willem Gerlof Haanstra
Hendrikus Johannes M Busschers
Hans Lammers
Original Assignee
Akzo Nobel Nv
Willem Gerlof Haanstra
Hendrikus Johannes M Busschers
Hans Lammers
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Akzo Nobel Nv, Willem Gerlof Haanstra, Hendrikus Johannes M Busschers, Hans Lammers filed Critical Akzo Nobel Nv
Priority to US10/009,804 priority Critical patent/US6672164B1/en
Priority to GB0200404A priority patent/GB2367363B/en
Priority to AU59688/00A priority patent/AU5968800A/en
Priority to JP2001503522A priority patent/JP4582751B2/en
Publication of WO2000077515A2 publication Critical patent/WO2000077515A2/en
Publication of WO2000077515A3 publication Critical patent/WO2000077515A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/22—Details, e.g. general constructional or apparatus details
    • G01N29/30—Arrangements for calibrating or comparing, e.g. with standard objects
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/024—Analysing fluids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/022—Liquids
    • G01N2291/0222—Binary liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/022—Liquids
    • G01N2291/0224—Mixtures of three or more liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02818—Density, viscosity
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/10—Number of transducers
    • G01N2291/102—Number of transducers one emitter, one receiver

Abstract

The invention pertains to a process for determining the polymer concentration in a spinning dope solution by measuring the propagation velocity of ultrasonic sound in the solution. The process enables prevention of fluctuations in this concentration as much as possible, and is therefore highly suitable for application in the production of fibers with consistent properties. An ultrasonic device used in the process is easier to clean, install, and calibrate than other presently commercially available devices.
PCT/EP2000/004729 1999-06-16 2000-05-23 Process for determining the polymer concentration in a spinning dope solution WO2000077515A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US10/009,804 US6672164B1 (en) 1999-06-16 2000-05-23 Process for determining the polymer concentration in a spinning dope solution
GB0200404A GB2367363B (en) 1999-06-16 2000-05-23 Process for determining the polymer concentration in a spinning dope solution
AU59688/00A AU5968800A (en) 1999-06-16 2000-05-23 Process for determining the polymer concentration in a spinning dope solution
JP2001503522A JP4582751B2 (en) 1999-06-16 2000-05-23 Method for producing fibers

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP99201907 1999-06-16
EP99201907.5 1999-06-16
US14560099P 1999-07-26 1999-07-26
US60/145,600 1999-07-26

Publications (2)

Publication Number Publication Date
WO2000077515A2 WO2000077515A2 (en) 2000-12-21
WO2000077515A3 true WO2000077515A3 (en) 2001-02-08

Family

ID=26153331

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2000/004729 WO2000077515A2 (en) 1999-06-16 2000-05-23 Process for determining the polymer concentration in a spinning dope solution

Country Status (4)

Country Link
JP (1) JP4582751B2 (en)
AU (1) AU5968800A (en)
GB (1) GB2367363B (en)
WO (1) WO2000077515A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MY148337A (en) 2007-02-03 2013-03-29 Teijin Aramid Bv Method for dissolving aramid polymer in sulfuric acid using a double shaft kneader
CN107462630A (en) * 2017-08-16 2017-12-12 中国石油化工股份有限公司 A kind of polymer concentration detection method and equipment based on sound velocity method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420794A1 (en) * 1983-06-10 1984-12-13 Helmut Dr. Heimel Device for investigating liquid properties
US5433112A (en) * 1992-09-15 1995-07-18 Piche; Luc Ultrasonic characterization of polymer melts under processing conditions

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63243330A (en) * 1987-03-31 1988-10-11 Asahi Chem Ind Co Ltd Production of high-modulus fiber
US5762798A (en) * 1991-04-12 1998-06-09 Minntech Corporation Hollow fiber membranes and method of manufacture
US5354524A (en) * 1993-05-24 1994-10-11 Alan Sellars Monitoring concentration of dope in product manufacture
CA2294151A1 (en) * 1997-06-20 1998-12-30 The Dow Chemical Company Ethylene polymer compositions and article fabricated from the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3420794A1 (en) * 1983-06-10 1984-12-13 Helmut Dr. Heimel Device for investigating liquid properties
US5433112A (en) * 1992-09-15 1995-07-18 Piche; Luc Ultrasonic characterization of polymer melts under processing conditions

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
ANONYMOUS: "Ultrasonic measurement and control of polymer melt compositions", RESEARCH DISCLOSURE, vol. 263, 1986, gb, pages 127, XP002124943 *
BEAR R S ET AL: "ULTRASONIC PULSE METHOD WITH NONLINEAR CALIBRATION FOR QUANTITATIVE MONITORING OF POLYMER BLENDS OVER A WIDE TEMPERATURE RANGE", ANALYTICAL CHEMISTRY,US,AMERICAN CHEMICAL SOCIETY. COLUMBUS, vol. 65, no. 9, 1993, pages 1169-1173, XP000368536, ISSN: 0003-2700 *

Also Published As

Publication number Publication date
JP4582751B2 (en) 2010-11-17
GB2367363B (en) 2003-07-23
WO2000077515A2 (en) 2000-12-21
JP2003502640A (en) 2003-01-21
GB0200404D0 (en) 2002-02-27
AU5968800A (en) 2001-01-02
GB2367363A (en) 2002-04-03

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