ES424090A1 - Continuous process for the production of polyurethanes - Google Patents

Continuous process for the production of polyurethanes

Info

Publication number
ES424090A1
ES424090A1 ES424090A ES424090A ES424090A1 ES 424090 A1 ES424090 A1 ES 424090A1 ES 424090 A ES424090 A ES 424090A ES 424090 A ES424090 A ES 424090A ES 424090 A1 ES424090 A1 ES 424090A1
Authority
ES
Spain
Prior art keywords
zone
polyurethanes
aqueous phase
production
continuous process
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES424090A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
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
Priority claimed from DE19732311635 external-priority patent/DE2311635C3/en
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES424090A1 publication Critical patent/ES424090A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0838—Manufacture of polymers in the presence of non-reactive compounds
    • C08G18/0842—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents
    • C08G18/0861—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers
    • C08G18/0866—Manufacture of polymers in the presence of non-reactive compounds in the presence of liquid diluents in the presence of a dispersing phase for the polymers or a phase dispersed in the polymers the dispersing or dispersed phase being an aqueous medium
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step

Landscapes

  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Procedure for the continuous production of dispersed polyurethanes, characterized in that an isocyanate prepolymer, a chain extender and a liquid aqueous phase are introduced continuously and separately in a zone of high turbulence, in this zone polyaddition occurs of isocyanate to the polyurethane urea and from this high turbulence zone a dispersion of polyurethane urea in the aqueous phase is continuously extracted and, if necessary, the polyurethane ureas, also in the form of fine particles, are isolated. (Machine-translation by Google Translate, not legally binding)
ES424090A 1973-03-09 1974-03-08 Continuous process for the production of polyurethanes Expired ES424090A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732311635 DE2311635C3 (en) 1973-03-09 Process for the continuous production of disperse polyurethane ureas

Publications (1)

Publication Number Publication Date
ES424090A1 true ES424090A1 (en) 1976-05-16

Family

ID=5874209

Family Applications (1)

Application Number Title Priority Date Filing Date
ES424090A Expired ES424090A1 (en) 1973-03-09 1974-03-08 Continuous process for the production of polyurethanes

Country Status (13)

Country Link
JP (1) JPS5622459B2 (en)
AT (1) AT332125B (en)
AU (1) AU477178B2 (en)
BE (1) BE811971A (en)
BR (1) BR7401787D0 (en)
DD (1) DD115140A5 (en)
ES (1) ES424090A1 (en)
FR (1) FR2220556B1 (en)
GB (1) GB1432112A (en)
IT (1) IT1008395B (en)
LU (1) LU69583A1 (en)
NL (1) NL7403183A (en)
SU (1) SU523643A3 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438527A1 (en) * 1984-10-20 1986-04-24 Bayer Ag, 5090 Leverkusen METHOD FOR PRODUCING POLYISOCYANATES CONTAINING UREA GROUPS
US4742095A (en) * 1985-07-25 1988-05-03 Mobay Corporation Continuous process for the production of aqueous polyurethane-urea dispersions
DE3603996A1 (en) * 1986-02-08 1987-08-13 Bayer Ag METHOD FOR THE CONTINUOUS PRODUCTION OF AQUEOUS POLYURETHANE DISPERSIONS AND THEIR USE AS A COATING AGENT OR AS AN ADHESIVE
CA1304869C (en) * 1986-10-21 1992-07-07 Peter H. Markusch Continuous process for the production of aqueous polyurethane-urea dispersions
JPH02502384A (en) * 1987-07-14 1990-08-02 ザ　ダウ　ケミカル　カンパニー Polyisocyanate prepolymers made from rigid polyaromatic precursor materials and polyurethanes made therefrom
DE3727252A1 (en) * 1987-08-15 1989-02-23 Bayer Ag METHOD FOR PRODUCING AQUEOUS POLYURETHANE DISPERSIONS
US5084506A (en) * 1987-12-03 1992-01-28 Ppg Industries, Inc. Stable nonaqueous microparticle dispersions prepared from aminoplast resins
US4833177A (en) * 1987-12-03 1989-05-23 Ppg Industries, Inc. Method for preparing stably dispersed nonaqueous microparticle dispersion
US4783502A (en) * 1987-12-03 1988-11-08 Ppg Industries, Inc. Stable nonaqueous polyurethane microparticle dispersion
JPH0397712A (en) * 1989-09-08 1991-04-23 Dai Ichi Kogyo Seiyaku Co Ltd Production of spherical polymeric granule
DE69801494T2 (en) 1997-03-17 2002-04-18 Dow Chemical Co POLYURETHANE LATEX, THEIR PRODUCTION METHOD AND POLYMERS MADE THEREOF
US6087440A (en) * 1999-02-16 2000-07-11 The Dow Chemical Company Continuous process for preparing a polyurethane latex
NO20001904L (en) 1999-04-14 2000-10-16 Dow Chemical Co Polyurethane films prepared by electrolytic precipitation from polyurethane dispersions
NO20001903L (en) 1999-04-14 2000-10-16 Dow Chemical Co Polyurethane films made from polyurethane dispersions
CN1257929C (en) * 2002-03-28 2006-05-31 大日本油墨化学工业株式会社 Method for producing polyurethane emulsion
US20070100112A1 (en) * 2005-10-27 2007-05-03 Bayer Materialscience Llc Polyurethane-urea elastomers
CN107849208B (en) * 2015-07-10 2021-02-09 科思创德国股份有限公司 Method and device for the continuous production of aqueous polyurethane dispersions
NL2020093B1 (en) 2017-12-15 2019-06-25 Stahl Int B V Process for producing aqueous polyurethane dispersions in a continuous manner; apparatus suitable for performing such a process; and products obtained by said process
NL2023089B1 (en) 2019-05-08 2019-10-04 Stahl Int B V Process for producing aqueous polyurethane dispersions in a continuous manner; apparatus suitable for performing such a process; and products obtained by said process
CN110606929A (en) * 2019-09-18 2019-12-24 牡丹江师范学院 Epoxy modified waterborne polyurethane emulsion convenient to store and transport, preparation method and storage method

Also Published As

Publication number Publication date
AU6641574A (en) 1975-09-11
DD115140A5 (en) 1975-09-12
JPS5622459B2 (en) 1981-05-25
FR2220556A1 (en) 1974-10-04
BR7401787D0 (en) 1974-11-05
LU69583A1 (en) 1974-10-09
BE811971A (en) 1974-09-09
IT1008395B (en) 1976-11-10
GB1432112A (en) 1976-04-14
JPS49120994A (en) 1974-11-19
DE2311635B2 (en) 1976-11-11
NL7403183A (en) 1974-09-11
DE2311635A1 (en) 1974-09-12
SU523643A3 (en) 1976-07-30
FR2220556B1 (en) 1980-12-12
AT332125B (en) 1976-09-10
AU477178B2 (en) 1976-10-14
ATA188174A (en) 1975-12-15

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