ES437684A1 - Process for the production of elastomeric polyurethane ureas - Google Patents
Process for the production of elastomeric polyurethane ureasInfo
- Publication number
- ES437684A1 ES437684A1 ES437684A ES437684A ES437684A1 ES 437684 A1 ES437684 A1 ES 437684A1 ES 437684 A ES437684 A ES 437684A ES 437684 A ES437684 A ES 437684A ES 437684 A1 ES437684 A1 ES 437684A1
- Authority
- ES
- Spain
- Prior art keywords
- reaction
- poise
- worm
- viscosity
- area
- 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
- C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
- B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
-
- 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
- C08G18/0895—Manufacture of polymers by continuous processes
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Polyurethanes Or Polyureas (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Polyamides (AREA)
Abstract
Procedure for the continuous production of elastomeric polyurethanes, by reaction of di- and, optionally, polyisocyanates, aliphatic, cycloaliphatic and/or araliphatic diamines, primary or secondary, and, if applicable, subsequent compounds containing, on average, at least 1.8 active groups according to Zerewitinoff on two-shaft worm machines rotating in the same direction at temperatures between 110 and 280ºC, with a viscosity margin during the reaction in the worm machine of about 0.1-3000 Poise, characterized Because in order to achieve a homogeneous final product, free of knots, the critical reaction phase, where the reaction mixture presents strong stickiness and a viscosity in the area between about 100 and 1000 Poise, is carried out in an area of the worm screw that It is located at the front of the housing with kneading elements at a kneading frequency of 1 to 20 Hertz and a speed drop in the radial clearance between the comb and the wall of the l a casing over 2000 sec-1. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742423764 DE2423764C3 (en) | 1974-05-16 | 1974-05-16 | Process for the continuous production of elastomeric polyurethane ureas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES437684A1 true ES437684A1 (en) | 1977-02-01 |
Family
ID=5915715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES437684A Expired ES437684A1 (en) | 1974-05-16 | 1975-05-14 | Process for the production of elastomeric polyurethane ureas |
Country Status (12)
| Country | Link |
|---|---|
| JP (1) | JPS5546408B2 (en) |
| BE (1) | BE829120A (en) |
| CA (1) | CA1063291A (en) |
| DE (1) | DE2423764C3 (en) |
| DK (1) | DK214175A (en) |
| ES (1) | ES437684A1 (en) |
| FR (1) | FR2271247B1 (en) |
| GB (1) | GB1508317A (en) |
| IE (1) | IE41241B1 (en) |
| IT (1) | IT1035720B (en) |
| LU (1) | LU72469A1 (en) |
| NL (1) | NL170743C (en) |
Families Citing this family (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2610980B2 (en) * | 1976-03-16 | 1978-01-12 | Basf Ag, 6700 Ludwigshafen | PROCESS FOR THE CONTINUOUS MANUFACTURING OF THERMOPLASTIC POLYURETHANE ELASTOMERS |
| DE2842806A1 (en) * | 1978-09-30 | 1980-04-10 | Bayer Ag | METHOD FOR PRODUCING POLYURETHANE ELASTOMERS |
| DE2854386A1 (en) | 1978-12-16 | 1980-07-03 | Bayer Ag | METHOD FOR PRODUCING THERMOPLASTIC CHEMICAL MATERIALS |
| DE2925944A1 (en) | 1979-06-27 | 1981-01-22 | Bayer Ag | METHOD FOR PRODUCING POLYURETHANE UREAS |
| DE3015576A1 (en) * | 1980-04-23 | 1981-10-29 | Bayer Ag, 5090 Leverkusen | METHOD FOR PRODUCING ISOCYANATE POLYADDITION PRODUCTS AND THE USE THEREOF AS A THERMOPLASTIC PRESSING MATERIAL OR AS A REACTIVE FILLER, ESPECIALLY IN A METHOD FOR THE PRODUCTION OF POLYURETHANE PLASTICS |
| JPS6359531A (en) * | 1986-08-29 | 1988-03-15 | 花王株式会社 | Manufacture of polyurethane laminate |
| DE4202973A1 (en) * | 1992-02-03 | 1993-08-05 | Bayer Ag | METHOD FOR THE CONTINUOUS PRODUCTION OF POLYURETHANE AND POLYURETHANE URBAN ELASTOMERS |
| DE4428458A1 (en) * | 1994-08-11 | 1996-02-15 | Bayer Ag | Cycloaliphatic thermoplastic polyurethane elastomers |
| DE4437586A1 (en) | 1994-10-20 | 1996-04-25 | Basf Schwarzheide Gmbh | Process for the preparation of thermoplastic polyurethanes |
| DE59905379D1 (en) * | 1998-01-23 | 2003-06-12 | Kloeckner Desma Schuhmaschinen | Use of a device for shot-wise mixing and dispensing of in the cavity of a mold of an injection molding ausreagierenden and curing multi-component plastics |
| DE10221047A1 (en) * | 2002-05-10 | 2003-11-27 | Degussa | Process for the solvent-free, continuous production of polyureas |
| DE102005004967A1 (en) * | 2005-02-03 | 2006-08-10 | Basf Ag | Process for the continuous production of thermoplastically processable polyurethane elastomers |
| WO2013030148A1 (en) | 2011-08-29 | 2013-03-07 | Bayer Intellectual Property Gmbh | Hydrophilic thermoplastic polyurethanes and use thereof in medical equipment |
| WO2013083511A1 (en) | 2011-12-06 | 2013-06-13 | Bayer Intellectual Property Gmbh | Tcd alcohol-based thermoplastic polyurethane urea polymers, and the use of same |
| WO2017177057A1 (en) | 2016-04-06 | 2017-10-12 | Zzyzx Polymers LLC | Processable polymers and methods of making and using |
-
1974
- 1974-05-16 DE DE19742423764 patent/DE2423764C3/en not_active Expired
-
1975
- 1975-05-09 CA CA226,589A patent/CA1063291A/en not_active Expired
- 1975-05-13 GB GB2008275A patent/GB1508317A/en not_active Expired
- 1975-05-14 LU LU72469A patent/LU72469A1/xx unknown
- 1975-05-14 ES ES437684A patent/ES437684A1/en not_active Expired
- 1975-05-14 IT IT4958675A patent/IT1035720B/en active
- 1975-05-15 DK DK214175A patent/DK214175A/en unknown
- 1975-05-15 NL NL7505741A patent/NL170743C/en not_active IP Right Cessation
- 1975-05-15 BE BE156388A patent/BE829120A/en not_active IP Right Cessation
- 1975-05-15 IE IE108875A patent/IE41241B1/en unknown
- 1975-05-16 JP JP5755775A patent/JPS5546408B2/ja not_active Expired
- 1975-05-16 FR FR7515489A patent/FR2271247B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE829120A (en) | 1975-11-17 |
| DK214175A (en) | 1975-11-17 |
| NL170743B (en) | 1982-07-16 |
| JPS50159590A (en) | 1975-12-24 |
| LU72469A1 (en) | 1976-03-17 |
| DE2423764A1 (en) | 1975-11-27 |
| FR2271247B1 (en) | 1980-02-08 |
| NL7505741A (en) | 1975-11-18 |
| IT1035720B (en) | 1979-10-20 |
| IE41241B1 (en) | 1979-11-21 |
| CA1063291A (en) | 1979-09-25 |
| FR2271247A1 (en) | 1975-12-12 |
| DE2423764C3 (en) | 1979-10-18 |
| GB1508317A (en) | 1978-04-19 |
| DE2423764B2 (en) | 1979-02-22 |
| JPS5546408B2 (en) | 1980-11-22 |
| IE41241L (en) | 1975-11-16 |
| NL170743C (en) | 1982-12-16 |
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