ES2084862T3 - Empleo de nitrometano, nitroetano y 1-nitropropano para inhibir la degradacion de hidroclorofluorocarburos utilizados como agentes espumantes en la preparacion de poliuretanos y poliisocianuratos expandidos. - Google Patents

Empleo de nitrometano, nitroetano y 1-nitropropano para inhibir la degradacion de hidroclorofluorocarburos utilizados como agentes espumantes en la preparacion de poliuretanos y poliisocianuratos expandidos.

Info

Publication number
ES2084862T3
ES2084862T3 ES92106237T ES92106237T ES2084862T3 ES 2084862 T3 ES2084862 T3 ES 2084862T3 ES 92106237 T ES92106237 T ES 92106237T ES 92106237 T ES92106237 T ES 92106237T ES 2084862 T3 ES2084862 T3 ES 2084862T3
Authority
ES
Spain
Prior art keywords
degradation
nitroethane
nitropropane
nitromethane
preparation
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 - Lifetime
Application number
ES92106237T
Other languages
English (en)
Inventor
Giampiero Basile
Ezio Musso
Claudio Tonelli
Sauro Girolomoni
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.)
Syensqo Specialty Polymers Italy SpA
Original Assignee
Ausimont SpA
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
Priority claimed from ITMI910989A external-priority patent/IT1245864B/it
Priority claimed from IT001861 external-priority patent/IT1250644B/it
Application filed by Ausimont SpA filed Critical Ausimont SpA
Application granted granted Critical
Publication of ES2084862T3 publication Critical patent/ES2084862T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/12—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
    • C08J9/14—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
    • C08J9/143—Halogen containing compounds
    • C08J9/144—Halogen containing compounds containing carbon, halogen and hydrogen only
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C17/00—Preparation of halogenated hydrocarbons
    • C07C17/38—Separation; Purification; Stabilisation; Use of additives
    • C07C17/42—Use of additives, e.g. for stabilisation
    • 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)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Food Preservation Except Freezing, Refrigeration, And Drying (AREA)

Abstract

METODO PARA INHIBIR LA DEGRADACION DE LOS HIDROCLOROFLUOROCARBUROS UTILIZADOS COMO AGENTES FORMADORES DE ESPUMA EN LA PREPARACION DE POLIURETANOS Y POLIISOCIANURATOS CELULARES. LA INVENCION SE REFIERE A UN METODO PARA INHIBIR LA DEGRADACION POR DESHIDROHALOGENACION DE HIDROCLOROFLUOROCARBUROS, COMO POR EJEMPLO LA MEZCLA DE 123 Y 123A, UTILIZADOS COMO AGENTES FORMADORES DE ESPUMA DURANTE LA REACCION PARA LA FORMACION DE POLIURETANOS O POLIISICIANURATOS CELULARES A PARTIR DE POLIOLES Y DE POLIISOCIANATOS. ANTES DE QUE COMIENCE LA REACCION, SE AÑADE AL MEDIO DE REACCION UNA CANTIDAD PEQUEÑA DE UNA SUSTANCIA ESTABILIZADORA SELECCIONADA DEL GRUPO QUE CONSISTE EN NITROMETANO, NITROETANO Y 1-NITROPROPANO.
ES92106237T 1991-04-11 1992-04-10 Empleo de nitrometano, nitroetano y 1-nitropropano para inhibir la degradacion de hidroclorofluorocarburos utilizados como agentes espumantes en la preparacion de poliuretanos y poliisocianuratos expandidos. Expired - Lifetime ES2084862T3 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI910989A IT1245864B (it) 1991-04-11 1991-04-11 Metodo per stabilizzare gli idroclorofluorocarburi
IT001861 IT1250644B (it) 1991-07-05 1991-07-05 Metodo per inibire la degradazione di idroclorofluorocarburi usati come agenti espandenti nella preparazione di poliuretani e poliisocianurati espansi.

Publications (1)

Publication Number Publication Date
ES2084862T3 true ES2084862T3 (es) 1996-05-16

Family

ID=26330700

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92106237T Expired - Lifetime ES2084862T3 (es) 1991-04-11 1992-04-10 Empleo de nitrometano, nitroetano y 1-nitropropano para inhibir la degradacion de hidroclorofluorocarburos utilizados como agentes espumantes en la preparacion de poliuretanos y poliisocianuratos expandidos.

Country Status (9)

Country Link
US (1) US5464882A (es)
EP (1) EP0508449B1 (es)
JP (1) JP3247144B2 (es)
AT (1) ATE135723T1 (es)
BR (1) BR9201324A (es)
CA (1) CA2065885A1 (es)
DE (1) DE69209121T2 (es)
ES (1) ES2084862T3 (es)
SI (1) SI9200047A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05222146A (ja) * 1992-02-14 1993-08-31 Daikin Ind Ltd 硬質ポリウレタンフォームの製造法

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE621364A (es) * 1961-03-10
NL284875A (es) * 1961-10-30
US3352789A (en) * 1964-01-10 1967-11-14 Allied Chem Stabilization of chlorofluoroalkanes
US3465052A (en) * 1966-06-15 1969-09-02 Daikin Ind Ltd Stabilized chlorofluoroalkane compositions
JPS523006A (en) * 1975-06-27 1977-01-11 Asahi Glass Co Ltd Process for stabilization of furon
DE3139401C2 (de) * 1981-10-03 1985-12-12 Hoechst Ag, 6230 Frankfurt Stabilisieren von Polyether- oder Polyester-Formmassen gegen vorzeitige Reaktion
JPS6375020A (ja) * 1986-09-18 1988-04-05 Du Pont Mitsui Fluorochem Co Ltd 硬質ポリウレタンフオ−ム用発泡剤組成物
JP2525755B2 (ja) * 1987-10-16 1996-08-21 三井・デュポンフロロケミカル株式会社 硬質ポリウレタンフオ―ム用発泡剤組成物
JPH01128944A (ja) * 1987-11-13 1989-05-22 Asahi Glass Co Ltd 水素含有フロンを安定化する方法
JPH01128945A (ja) * 1987-11-13 1989-05-22 Asahi Glass Co Ltd 水素含有フロンを安定化する方法
JPH01211539A (ja) * 1988-02-16 1989-08-24 Asahi Glass Co Ltd 水素含有フロンを安定化する方法
JPH01211538A (ja) * 1988-02-16 1989-08-24 Asahi Glass Co Ltd 水素含有フロンを安定化する方法
JPH02279634A (ja) * 1989-04-18 1990-11-15 Asahi Glass Co Ltd フッ素化炭化水素系共沸組成物及び共沸様組成物
JPH0331222A (ja) * 1989-06-28 1991-02-12 Asahi Glass Co Ltd 弗素化炭化水素系共沸及び擬共沸組成物
US4997589A (en) * 1989-12-15 1991-03-05 Allied-Signal Inc. Azeotrope-like compositions of 1,2-difluoroethane and dichlorotrifluoroethane
US5124503A (en) * 1990-12-13 1992-06-23 Allied-Signal Inc. Dichlorotrifluoroethane stabilized to minimize hydrolysis thereof
US5137929A (en) * 1991-06-21 1992-08-11 Allied-Signal Inc. Additives which stabilize hydrohalocarbon blowing agent in polyurethane and polyisocyanurate foam formulations during polymerization

Also Published As

Publication number Publication date
JP3247144B2 (ja) 2002-01-15
BR9201324A (pt) 1992-12-01
EP0508449B1 (en) 1996-03-20
CA2065885A1 (en) 1992-10-12
DE69209121D1 (de) 1996-04-25
DE69209121T2 (de) 1996-09-26
SI9200047A (en) 1992-11-27
EP0508449A1 (en) 1992-10-14
ATE135723T1 (de) 1996-04-15
JPH0687971A (ja) 1994-03-29
US5464882A (en) 1995-11-07

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