GB1432112A - Continuous process for the production of polyurethanes - Google Patents
Continuous process for the production of polyurethanesInfo
- Publication number
- GB1432112A GB1432112A GB1051974A GB1051974A GB1432112A GB 1432112 A GB1432112 A GB 1432112A GB 1051974 A GB1051974 A GB 1051974A GB 1051974 A GB1051974 A GB 1051974A GB 1432112 A GB1432112 A GB 1432112A
- Authority
- GB
- United Kingdom
- Prior art keywords
- zone
- aqueous phase
- prepolymer
- polyurethane urea
- lengthening agent
- 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
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)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
1432112 Polyurethane urea dispersions BAYER AG 8 March 1974 [9 March 1973] 10519/74 Heading C3R Polyurethane urea dispersions are continuously produced by continuously introducing an isocyanate prepolymer, a liquid aqueous phase and, optionally, a chain lengthening agent other than water into a zone of high turbulence at a temperature above the melting point and below the decomposition point of the prepolymer and of the chain lengthening agent and continuously removing the resultant dispersion from the zone which consists of a space through which at least 300 parts by volume of liquid are passed per unit volume of space and per hour under conditions of vigorous mixing corresponding to a specific mixing power of from 5 to 25 Watt/cm.<SP>3</SP>. Fine particles of the polyurethane urea may be isolated from the dispersion. The three components may be introduced simultaneously but separately into the zone of turbulence or alternatively the chain lengthening agent and aqueous phase are first mixed and the mixture introduced simultaneously with the prepolymer. The aqueous phase may be water alone or an aqueous emulsifier solution. Rotary homogenization machines are particularly suitable for providing the high turbulence.
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 |
|---|---|
| GB1432112A true GB1432112A (en) | 1976-04-14 |
Family
ID=5874209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1051974A Expired GB1432112A (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) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742095A (en) * | 1985-07-25 | 1988-05-03 | Mobay Corporation | Continuous process for the production of aqueous polyurethane-urea dispersions |
| US4783502A (en) * | 1987-12-03 | 1988-11-08 | Ppg Industries, Inc. | Stable nonaqueous polyurethane microparticle dispersion |
| US4833177A (en) * | 1987-12-03 | 1989-05-23 | Ppg Industries, Inc. | Method for preparing stably dispersed nonaqueous microparticle dispersion |
| US4857565A (en) * | 1986-02-08 | 1989-08-15 | Bayer Aktiengesellschaft | Process for the continuous production of aqueous polyurethane dispersions and their use as a coating composition or as an adhesive |
| US4879322A (en) * | 1986-10-21 | 1989-11-07 | Mobay Corporation | Continuous process for the production of aqueous polyurethane urea dispersions |
| US4921842A (en) * | 1987-08-15 | 1990-05-01 | Bayer Aktiengessellschaft | Process for the production of aqueous polyurethane dispersions |
| US5084506A (en) * | 1987-12-03 | 1992-01-28 | Ppg Industries, Inc. | Stable nonaqueous microparticle dispersions prepared from aminoplast resins |
| US6087440A (en) * | 1999-02-16 | 2000-07-11 | The Dow Chemical Company | Continuous process for preparing a polyurethane latex |
| US6451908B1 (en) | 1999-04-14 | 2002-09-17 | The Dow Chemical Company | Polyurethane films prepared from polyurethane dispersions |
| US6514572B1 (en) | 1999-04-14 | 2003-02-04 | Dow Global Technologies Inc. | Polyurethane films prepared by electrodeposition from polyurethane dispersions |
| US6720385B2 (en) | 1997-03-17 | 2004-04-13 | The Dow Chemical Company | Polyurethane latexes, processes for preparing them and polymers prepared therewith |
| EP1489130A1 (en) * | 2002-03-28 | 2004-12-22 | Dainippon Ink And Chemicals, Inc. | Method for producing polyurethane emulsion |
| US10752727B1 (en) | 2015-07-10 | 2020-08-25 | Covestro Deutschland Ag | Process and apparatus for continuous production of aqueous polyurethane dispersions |
| EP3724247A2 (en) * | 2017-12-15 | 2020-10-21 | Stahl International 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 |
Families Citing this family (6)
| 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 |
| WO1989000588A1 (en) * | 1987-07-14 | 1989-01-26 | The Dow Chemical Company | Polyisocyanate prepolymers prepared from rigid polyaromatic precursor materials, and polyurethanes prepared therefrom |
| JPH0397712A (en) * | 1989-09-08 | 1991-04-23 | Dai Ichi Kogyo Seiyaku Co Ltd | Production of spherical polymeric granule |
| US20070100112A1 (en) * | 2005-10-27 | 2007-05-03 | Bayer Materialscience Llc | Polyurethane-urea elastomers |
| 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 |
-
1974
- 1974-03-06 DD DD17698474A patent/DD115140A5/xx unknown
- 1974-03-06 SU SU2004360A patent/SU523643A3/en active
- 1974-03-07 BE BE141723A patent/BE811971A/en not_active IP Right Cessation
- 1974-03-07 LU LU69583A patent/LU69583A1/xx unknown
- 1974-03-07 AU AU66415/74A patent/AU477178B2/en not_active Expired
- 1974-03-07 AT AT188174A patent/AT332125B/en not_active IP Right Cessation
- 1974-03-07 IT IT4914174A patent/IT1008395B/en active
- 1974-03-07 JP JP2581874A patent/JPS5622459B2/ja not_active Expired
- 1974-03-08 ES ES424090A patent/ES424090A1/en not_active Expired
- 1974-03-08 FR FR7408037A patent/FR2220556B1/fr not_active Expired
- 1974-03-08 NL NL7403183A patent/NL7403183A/xx unknown
- 1974-03-08 BR BR178774A patent/BR7401787D0/en unknown
- 1974-03-08 GB GB1051974A patent/GB1432112A/en not_active Expired
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4742095A (en) * | 1985-07-25 | 1988-05-03 | Mobay Corporation | Continuous process for the production of aqueous polyurethane-urea dispersions |
| US4857565A (en) * | 1986-02-08 | 1989-08-15 | Bayer Aktiengesellschaft | Process for the continuous production of aqueous polyurethane dispersions and their use as a coating composition or as an adhesive |
| US4879322A (en) * | 1986-10-21 | 1989-11-07 | Mobay Corporation | Continuous process for the production of aqueous polyurethane urea dispersions |
| US4921842A (en) * | 1987-08-15 | 1990-05-01 | Bayer Aktiengessellschaft | Process for the production of aqueous polyurethane dispersions |
| US4783502A (en) * | 1987-12-03 | 1988-11-08 | Ppg Industries, Inc. | Stable nonaqueous polyurethane microparticle dispersion |
| US4833177A (en) * | 1987-12-03 | 1989-05-23 | Ppg Industries, Inc. | Method for preparing stably dispersed nonaqueous microparticle dispersion |
| US5084506A (en) * | 1987-12-03 | 1992-01-28 | Ppg Industries, Inc. | Stable nonaqueous microparticle dispersions prepared from aminoplast resins |
| US6720385B2 (en) | 1997-03-17 | 2004-04-13 | The Dow Chemical Company | Polyurethane latexes, processes for preparing them and polymers prepared therewith |
| US6087440A (en) * | 1999-02-16 | 2000-07-11 | The Dow Chemical Company | Continuous process for preparing a polyurethane latex |
| US6451908B1 (en) | 1999-04-14 | 2002-09-17 | The Dow Chemical Company | Polyurethane films prepared from polyurethane dispersions |
| US6514572B1 (en) | 1999-04-14 | 2003-02-04 | Dow Global Technologies Inc. | Polyurethane films prepared by electrodeposition from polyurethane dispersions |
| EP1489130A1 (en) * | 2002-03-28 | 2004-12-22 | Dainippon Ink And Chemicals, Inc. | Method for producing polyurethane emulsion |
| EP1489130A4 (en) * | 2002-03-28 | 2006-05-10 | Dainippon Ink & Chemicals | Method for producing polyurethane emulsion |
| US7253228B2 (en) | 2002-03-28 | 2007-08-07 | Dainippon Ink And Chemicals, Inc. | Method for producing polyurethane emulsion |
| US10752727B1 (en) | 2015-07-10 | 2020-08-25 | Covestro Deutschland Ag | Process and apparatus for continuous production of aqueous polyurethane dispersions |
| EP3724247A2 (en) * | 2017-12-15 | 2020-10-21 | Stahl International 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS49120994A (en) | 1974-11-19 |
| BR7401787D0 (en) | 1974-11-05 |
| FR2220556B1 (en) | 1980-12-12 |
| DE2311635B2 (en) | 1976-11-11 |
| NL7403183A (en) | 1974-09-11 |
| ATA188174A (en) | 1975-12-15 |
| AU6641574A (en) | 1975-09-11 |
| FR2220556A1 (en) | 1974-10-04 |
| IT1008395B (en) | 1976-11-10 |
| ES424090A1 (en) | 1976-05-16 |
| LU69583A1 (en) | 1974-10-09 |
| JPS5622459B2 (en) | 1981-05-25 |
| DD115140A5 (en) | 1975-09-12 |
| DE2311635A1 (en) | 1974-09-12 |
| AU477178B2 (en) | 1976-10-14 |
| SU523643A3 (en) | 1976-07-30 |
| BE811971A (en) | 1974-09-09 |
| AT332125B (en) | 1976-09-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |