ES424912A1 - Procedimiento para preparar un elastomero de poliuretano. - Google Patents

Procedimiento para preparar un elastomero de poliuretano.

Info

Publication number
ES424912A1
ES424912A1 ES424912A ES424912A ES424912A1 ES 424912 A1 ES424912 A1 ES 424912A1 ES 424912 A ES424912 A ES 424912A ES 424912 A ES424912 A ES 424912A ES 424912 A1 ES424912 A1 ES 424912A1
Authority
ES
Spain
Prior art keywords
catalyst system
injection molding
polyurethanes
molding polyurethanes
disclosed
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
ES424912A
Other languages
English (en)
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.)
Inter Polymer Research Corp
Original Assignee
Inter Polymer Research Corp
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
Application filed by Inter Polymer Research Corp filed Critical Inter Polymer Research Corp
Publication of ES424912A1 publication Critical patent/ES424912A1/es
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
    • C08G18/16—Catalysts
    • C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
    • C08G18/163—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22 covered by C08G18/18 and C08G18/22
    • 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 elastómero de poliuretano que comprende combinar en un aparato de mezclado e inyección , a una velocidad de la hélice de mezclado superior a 10.000 r.p.m. (A) una solución o dispersión de al menos un poli (eter dialcohol), poli (éster dialcohol) o mezcla de los mismos, al menos un extendedor bifuncional orgánico seleccionado de tal modo que sea una diamina, un aminoalcohol o un glicol que tenga un grado de reactividad mayor que los alcohilenglicoles o las aminas que presentan impedimento estérico, co o sin la adición de un alcohilenglico, una amina que presente impedimento estérico u otro extendedor que reaccione lentamente, y una cantidad efectiva de un sistema de catalizador que comprende (1) al menos un catalizador de amina básico para la reacción de formación de poliuretanos que tiene una actividad catalítica aproximadamente igual a o mayor que la tietilendiamina (2)al menos un catalizador organometálico para la reacción de formación de poliuretanos y (3)al menos un catalizador de amina básico para la reacción de formación de poliretanos que tiene una actividad catalítica menor que la de los catalizadores (1) y (2) y (b) un prepolímero resultante de la reacción de al menos un poli (éter dialcohol) poli (éster dialcohol) o mezcla de los mismos con al menos un disocianato orgánico que proporcione al prepolímero una proporción media de grupos isocianato libres a grupos hidroxilo mayor de aproximadamente 2:1 , inyectar la mezcla líquida en un molde y curar el contenido del molde
ES424912A 1973-04-17 1974-04-03 Procedimiento para preparar un elastomero de poliuretano. Expired ES424912A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/351,859 US3931387A (en) 1973-04-17 1973-04-17 Catalyst system for injection molding polyurethanes

Publications (1)

Publication Number Publication Date
ES424912A1 true ES424912A1 (es) 1976-12-16

Family

ID=23382723

Family Applications (1)

Application Number Title Priority Date Filing Date
ES424912A Expired ES424912A1 (es) 1973-04-17 1974-04-03 Procedimiento para preparar un elastomero de poliuretano.

Country Status (10)

Country Link
US (1) US3931387A (es)
JP (1) JPS5029487A (es)
BE (1) BE813437A (es)
BR (1) BR7403017D0 (es)
DE (1) DE2418333A1 (es)
ES (1) ES424912A1 (es)
FR (1) FR2226426B1 (es)
IT (1) IT1009444B (es)
LU (1) LU69816A1 (es)
NL (1) NL7404625A (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049931A (en) * 1975-05-29 1977-09-20 Union Carbide Corporation Catalyst systems containing dimethylamino ether mono-ols for polyurethane foam formation
US4332927A (en) * 1980-11-14 1982-06-01 Caschem, Inc. Catalyst-containing stable polyurethane forming compositions which are non-cytotoxic when cured and separatory devices employing same
US4520042A (en) * 1983-06-20 1985-05-28 Thermocell Development, Ltd. High-modulus, flexible urethane coating and method of preparation
US10294363B2 (en) 2015-04-28 2019-05-21 Hp Indigo B.V. Coating system

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE516512A (es) * 1951-12-24
US2969960A (en) * 1957-06-05 1961-01-31 Mobay Chemical Corp Mixing apparatus
NL106889C (es) * 1957-09-25 1900-01-01
NL125854C (es) * 1958-11-03
US3201358A (en) * 1958-12-08 1965-08-17 Union Carbide Corp Method for preparing a polyurethane foam
US3398106A (en) * 1960-04-26 1968-08-20 Union Carbide Corp Tin-containing catalyst for isocyanate reactions
US3215652A (en) * 1962-09-24 1965-11-02 Allied Chem Process for producing a rigid polyether-polyurethane foam
GB1091604A (en) * 1964-03-12 1967-11-22 Lankro Chem Ltd Improvements in or relating to polyurethane foams
US3372130A (en) * 1964-09-16 1968-03-05 Upjohn Co Control of rate of rise of polyurethane foams with phosphoric acid and a tertiary amine
US3438908A (en) * 1966-09-20 1969-04-15 Upjohn Co Stabilizer for polyurethane-premix
US3476933A (en) * 1966-10-21 1969-11-04 Westinghouse Electric Corp Large-celled polyurethane foam
GB1182014A (en) * 1966-10-29 1970-02-25 San Abbott Ltd Urethane and Urea Catalyst
DE1720633A1 (de) * 1967-03-15 1971-07-01 Bayer Ag Verfahren zur Herstellung von Polyurethanen
US3822223A (en) * 1967-04-03 1974-07-02 Baychem Corp Preparing polyurethanes with a dialkyl tin carboxylate/tertiary amine catalyst combination
US3772221A (en) * 1972-01-12 1973-11-13 Quaker Oats Co Preparation of polyurethane foams and microcellular elastomers with integral skins using a combination of tetraalkylguanidine and an organomercury compound
US3767602A (en) * 1972-10-30 1973-10-23 Air Prod & Chem Shelf stable polyurethane catalyst mixture and method of preparing cellular polyurethanes using said mixture

Also Published As

Publication number Publication date
FR2226426A1 (es) 1974-11-15
LU69816A1 (es) 1974-11-21
DE2418333A1 (de) 1974-10-31
IT1009444B (it) 1976-12-10
US3931387A (en) 1976-01-06
BR7403017D0 (pt) 1974-12-03
JPS5029487A (es) 1975-03-25
FR2226426B1 (es) 1977-03-04
BE813437A (fr) 1974-10-08
NL7404625A (es) 1974-10-21

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