ES226325A1 - Un procedimiento para preparar productos celulares elastomeros y flexibles - Google Patents
Un procedimiento para preparar productos celulares elastomeros y flexiblesInfo
- Publication number
- ES226325A1 ES226325A1 ES0226325A ES226325A ES226325A1 ES 226325 A1 ES226325 A1 ES 226325A1 ES 0226325 A ES0226325 A ES 0226325A ES 226325 A ES226325 A ES 226325A ES 226325 A1 ES226325 A1 ES 226325A1
- Authority
- ES
- Spain
- Prior art keywords
- polymeric material
- prepolymer
- water
- reacted
- average molecular
- 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
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/02—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by the reacting monomers or modifying agents during the preparation or modification of macromolecules
-
- 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
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0008—Foam properties flexible
-
- 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
- C08G2110/00—Foam properties
- C08G2110/0083—Foam properties prepared using water as the sole blowing agent
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Polyurethanes Or Polyureas (AREA)
Abstract
Procedimiento para preparar productos celulares elastómeros y flexibles que incluye la operación de formar un polímero previo haciendo reaccionar (A) un material polímero que contiene hidrógeno activo con un peso molecular medio de 750 a 2.250 y un índice de ácido no mayor de 5 con (B) desde 0,90 a 1,10 moles de un diisocianato por mol de dicho material polímero hasta que la generación del calor exotérmico de la reacción haya terminado en esencia, derivar el calor generado de la reacción, añadir poliisocianato y agua al polímero previo.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US508323A US2879233A (en) | 1955-05-13 | 1955-05-13 | Process for the preparation of foamed polyurethanes |
Publications (1)
Publication Number | Publication Date |
---|---|
ES226325A1 true ES226325A1 (es) | 1956-03-01 |
Family
ID=24022288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES0226325A Expired ES226325A1 (es) | 1955-05-13 | 1956-01-26 | Un procedimiento para preparar productos celulares elastomeros y flexibles |
Country Status (6)
Country | Link |
---|---|
US (1) | US2879233A (es) |
BE (1) | BE547783A (es) |
ES (1) | ES226325A1 (es) |
FR (1) | FR1140896A (es) |
GB (1) | GB797227A (es) |
LU (1) | LU34076A1 (es) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2966472A (en) * | 1957-06-26 | 1960-12-27 | Allied Chem | Non-cellular polyurethane coating resistant to discoloration |
NL247110A (es) * | 1959-01-08 | |||
US3085983A (en) * | 1959-09-03 | 1963-04-16 | Mobay Chemical Corp | Preparation of cellular polyurethane plastics |
US3157621A (en) * | 1960-06-30 | 1964-11-17 | Allied Chem | Polyether based urethanes prepared in the presence of ammonium acetate |
US3149083A (en) * | 1961-04-28 | 1964-09-15 | Gen Tire & Rubber Co | Cellular polyetherurethanes and methods of making same |
US3857913A (en) * | 1969-10-21 | 1974-12-31 | Atomic Energy Commission | Method for the manufacture of carbon foam |
DE3329775A1 (de) * | 1983-08-18 | 1985-02-28 | Bayer Ag, 5090 Leverkusen | Thermoplastische polyurethane hoher waermestandfestigkeit auf basis von naphthylendiisocyanat, verfahren zu ihrer herstellung und ihre verwendung |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2621166A (en) * | 1949-02-23 | 1952-12-09 | Bayer Ag | Synthetic polymers |
US2692874A (en) * | 1951-07-19 | 1954-10-26 | Du Pont | Elastomers from polyalkylene ether glycol reacted with arylene diisocyanate and water |
US2702797A (en) * | 1953-04-10 | 1955-02-22 | Du Pont | Process for stabilizing a polyurethane |
US2713884A (en) * | 1953-11-06 | 1955-07-26 | Du Pont | Composite elastic structures |
-
0
- LU LU34076D patent/LU34076A1/xx unknown
- BE BE547783D patent/BE547783A/xx unknown
-
1955
- 1955-05-13 US US508323A patent/US2879233A/en not_active Expired - Lifetime
- 1955-12-06 FR FR1140896D patent/FR1140896A/fr not_active Expired
- 1955-12-12 GB GB35571/55A patent/GB797227A/en not_active Expired
-
1956
- 1956-01-26 ES ES0226325A patent/ES226325A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
LU34076A1 (es) | |
FR1140896A (fr) | 1957-08-20 |
BE547783A (es) | |
US2879233A (en) | 1959-03-24 |
GB797227A (en) | 1958-06-25 |
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