ES8708244A1 - Procedimiento para preparar un elastomero uretanico - Google Patents
Procedimiento para preparar un elastomero uretanicoInfo
- Publication number
- ES8708244A1 ES8708244A1 ES554050A ES554050A ES8708244A1 ES 8708244 A1 ES8708244 A1 ES 8708244A1 ES 554050 A ES554050 A ES 554050A ES 554050 A ES554050 A ES 554050A ES 8708244 A1 ES8708244 A1 ES 8708244A1
- Authority
- ES
- Spain
- Prior art keywords
- curing agent
- free polyisocyanate
- urethane
- urethane compositions
- favored
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
PROCEDIMIENTO PARA PREPARAR UN ELASTICO URETANICO. COMPRENDE: A) AÑADIR UNA CANTIDAD INCREMENTAL DE UN AGENTE DE CURADO, Y DE ANALOGO AMINICO A UN PREPOLIMERO DE URETANO; B) HACER REACCIONAR AL AGENTE DE CURADO CON EL PREPOLIMERO URETANICO, ENTRE 25 Y 180GC, PARA PRECIPITAR ADUCTOS DE POLIRSUCIANATO LIBRE/AGENTE DE CURADO; C) AÑADIR LA CANTIDAD RESTANTE DEL AGENTE DE CURADO AL PREPOLIMERO DE URETANO; D) HACER REACCIONAR AL AGENTE DE CURADO CON DICHO PREPOLIMERO DE URETANO, ENTRE 30 Y 100GC, PARA FORMAR LA COMPOSICION URETANICA. EL AGENTE DE CURADO ES POLIOL ELEGIDO ENTRE 2-METIL-1,3-PROPANODIOL Y 1,4-BUTANODIOL; ANALOGOS AMINICOS SE ELIGEN ENTRE 3-AMINOPROPANOL, Y AMINA Y EL PREPOLIMERO URETANICO, SE ELIGE ENTRE POLI(BUTADIENO)DIOL Y POLI(OXIPROPILENO)DIOL Y CONTIENE POLIISOCIANATO COMO MDI. SE UTILIZA EN CUBIERTAS DE NEUMATICOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/724,691 US4579928A (en) | 1985-04-18 | 1985-04-18 | Urethane compositions |
Publications (2)
Publication Number | Publication Date |
---|---|
ES554050A0 ES554050A0 (es) | 1987-10-16 |
ES8708244A1 true ES8708244A1 (es) | 1987-10-16 |
Family
ID=24911474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES554050A Expired ES8708244A1 (es) | 1985-04-18 | 1986-04-16 | Procedimiento para preparar un elastomero uretanico |
Country Status (6)
Country | Link |
---|---|
US (1) | US4579928A (es) |
EP (1) | EP0198174A3 (es) |
JP (1) | JPS61243818A (es) |
ES (1) | ES8708244A1 (es) |
PT (1) | PT82314B (es) |
ZA (1) | ZA861377B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5470935A (en) * | 1992-12-15 | 1995-11-28 | Bayer Corporation | Preparation of cast elastomers using 2-methyl-1,3-propanediol as chain extender |
DE102005041788A1 (de) * | 2005-09-02 | 2007-03-08 | Basf Ag | Polyisobutenpolyol und Formmasse |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3471445A (en) * | 1966-06-27 | 1969-10-07 | Allied Chem | Curable urethane compositions |
BE754717A (fr) * | 1969-08-18 | 1971-01-18 | Marles Kuhlmann Wyandotte | Polyurethanes elastomeres |
US3915923A (en) * | 1970-10-26 | 1975-10-28 | Union Carbide Corp | Solution process for making polyurethane |
US4267299A (en) * | 1978-09-22 | 1981-05-12 | Metalweld, Inc. | Method of curing isocyanate-terminated polyurethane prepolymers for use in solventless spray applications |
US4532316A (en) * | 1984-05-29 | 1985-07-30 | W. L. Gore & Assoc., Inc. | Phase separating polyurethane prepolymers and elastomers prepared by reacting a polyol having a molecular weight of 600-3500 and isocyanate and a low molecular weight chain extender in which the ratios of reactants have a limited range |
US4618667A (en) * | 1985-04-18 | 1986-10-21 | The Firestone Tire & Rubber Company | Nucleation of urethane compositions |
-
1985
- 1985-04-18 US US06/724,691 patent/US4579928A/en not_active Expired - Fee Related
-
1986
- 1986-02-18 EP EP86102080A patent/EP0198174A3/en not_active Withdrawn
- 1986-02-24 ZA ZA861377A patent/ZA861377B/xx unknown
- 1986-04-01 PT PT82314A patent/PT82314B/pt not_active IP Right Cessation
- 1986-04-11 JP JP61082422A patent/JPS61243818A/ja active Pending
- 1986-04-16 ES ES554050A patent/ES8708244A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS61243818A (ja) | 1986-10-30 |
ZA861377B (en) | 1986-10-29 |
ES554050A0 (es) | 1987-10-16 |
US4579928A (en) | 1986-04-01 |
PT82314A (en) | 1986-05-01 |
EP0198174A2 (en) | 1986-10-22 |
EP0198174A3 (en) | 1988-08-03 |
PT82314B (pt) | 1988-03-03 |
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