ES2075986T3 - Procedimiento para impedir la coloracion de compuestos de isocianato aromaticos. - Google Patents

Procedimiento para impedir la coloracion de compuestos de isocianato aromaticos.

Info

Publication number
ES2075986T3
ES2075986T3 ES92114573T ES92114573T ES2075986T3 ES 2075986 T3 ES2075986 T3 ES 2075986T3 ES 92114573 T ES92114573 T ES 92114573T ES 92114573 T ES92114573 T ES 92114573T ES 2075986 T3 ES2075986 T3 ES 2075986T3
Authority
ES
Spain
Prior art keywords
aromatic
isocianate
coloring
compounds
procedure
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
ES92114573T
Other languages
English (en)
Inventor
Toshiaki Imokawa
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.)
Sumika Covestro Urethane Co Ltd
Original Assignee
Sumitomo Bayer Urethane Co Ltd
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 Sumitomo Bayer Urethane Co Ltd filed Critical Sumitomo Bayer Urethane Co Ltd
Application granted granted Critical
Publication of ES2075986T3 publication Critical patent/ES2075986T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C07F9/08—Esters of oxyacids of phosphorus
    • C07F9/141—Esters of phosphorous acids
    • C07F9/145—Esters of phosphorous acids with hydroxyaryl compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/18—Separation; Purification; Stabilisation; Use of additives
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic Table
    • C07F9/02—Phosphorus compounds
    • C07F9/06—Phosphorus compounds without P—C bonds
    • C07F9/08—Esters of oxyacids of phosphorus
    • C07F9/141—Esters of phosphorous acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

UN METODO PARA EVITAR LA COLORACION DE UN COMPUESTO DE ISOCIANATO AROMATICO QUE SE CARACTERIZA EN TANTO QUE UN ESTER DE FOSFITO ORGANICO CON LA FORMULA: EN DONDE, R1, R2, R3 Y R4 SON, LO MISMO O ALGO DISTINTO, CADA UNO UN GRUPO DE HIDROCARBURO C4-20, SE INCORPORAN 2,6 FOSFITO DE TRIFENILO AL COMPUESTO DE ISOCIANATO AROMATICO.
ES92114573T 1991-09-09 1992-08-27 Procedimiento para impedir la coloracion de compuestos de isocianato aromaticos. Expired - Lifetime ES2075986T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3227898A JP2988755B2 (ja) 1991-09-09 1991-09-09 芳香族イソシアネート化合物の着色防止法

Publications (1)

Publication Number Publication Date
ES2075986T3 true ES2075986T3 (es) 1995-10-16

Family

ID=16868040

Family Applications (1)

Application Number Title Priority Date Filing Date
ES92114573T Expired - Lifetime ES2075986T3 (es) 1991-09-09 1992-08-27 Procedimiento para impedir la coloracion de compuestos de isocianato aromaticos.

Country Status (8)

Country Link
US (1) US5258548A (es)
EP (1) EP0531803B1 (es)
JP (1) JP2988755B2 (es)
KR (1) KR100234581B1 (es)
BR (1) BR9203478A (es)
CA (1) CA2077632A1 (es)
DE (1) DE69202945T2 (es)
ES (1) ES2075986T3 (es)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4331083A1 (de) * 1993-09-13 1995-03-16 Basf Ag Lagerstabile, nach phosgenfreien Verfahren erhältliche Polyisocyanatzusammensetzungen, ein Verfahren zu ihrer Herstellung und ihre Verwendung
DE4331085A1 (de) * 1993-09-13 1995-03-16 Basf Ag Stabile, nach phosgenfreien Verfahren erhältliche Polyisocyanatzusammensetzungen und ein Verfahren zu ihrer Herstellung
JPH0867662A (ja) * 1994-08-30 1996-03-12 Sumitomo Bayer Urethane Kk 液状のジフェニルメタンジイソシアネートの製造法
DE19914291A1 (de) * 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen Isocyanaten
TW593450B (en) * 2001-03-21 2004-06-21 Hoya Corp Transparent molded articles, optical components, plastic lenses and preparation method thereof
DE10327009A1 (de) * 2003-06-12 2004-12-30 Basf Ag Mischungen enthaltend Isocyanat und Stabilisator
EP1732965B1 (en) * 2003-07-14 2014-02-26 Vencorex US, Inc. Improved color stability of isocyanates
DE102004005320A1 (de) * 2004-02-04 2005-08-25 Bayer Materialscience Ag Herstellung von Di- und Polysocyanaten der Diphenylmethanreihe mit definierter Acidität
JP2005298365A (ja) * 2004-04-07 2005-10-27 Mitsui Takeda Chemicals Inc 有機ポリイソシアネート組成物
DE102004058173A1 (de) * 2004-12-02 2006-06-08 Degussa Ag Lagerstabile aliphatische, cycloaliphatische oder (cyclo)aliphatische Diisocyanate
EP3105275B1 (en) 2014-02-14 2019-01-09 Basf Se Method of preparing a polycarbodiimide polymer and polycarbodiimide polymer prepared thereby
EP3498689A1 (en) * 2017-12-14 2019-06-19 Sulzer Chemtech AG A plant and method for purifying an isomeric monomer, such as 4,4'-methylene diphenyl diisocyanate, from a crude mixture
FR3078707B1 (fr) * 2018-03-06 2020-12-25 Vencorex France Composition de polyisocyanates
WO2024049033A1 (ko) * 2022-08-31 2024-03-07 한화솔루션 주식회사 이소시아네이트 조성물

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2437867A (en) * 1946-06-01 1948-03-16 Du Pont Organic isocyanates
US2957903A (en) * 1959-03-24 1960-10-25 Du Pont Stabilization of organic isocyanates
GB1014043A (en) * 1963-07-01 1965-12-22 Ici Ltd Isocyanate compositions
US3585229A (en) * 1968-06-21 1971-06-15 Kaiser Aluminium Chem Corp Decolorization of aromatic isocyanates
US3715381A (en) * 1969-06-11 1973-02-06 Allied Chem Polyisocyanate compositions stabilized against discoloration
DE2930411C2 (de) * 1979-07-26 1982-10-21 Bayer Ag, 5090 Leverkusen Verwendung von Diisocyanatgemischen der Diphenylmethanreihe als Lösungsmittel für Hilfs- und Zusatzmittel für aromatische Polyisocyanate.
JPS5782358A (en) * 1980-11-13 1982-05-22 Mitsui Toatsu Chem Inc Prevention of coloring of aromatic isocyanate compound
JPS59189116A (ja) * 1983-04-11 1984-10-26 Nippon Polyurethan Kogyo Kk 着色安定化ポリイソシアネ−ト組成物の製造方法
US4677154A (en) * 1985-12-18 1987-06-30 Basf Corporation Stabilizer package for polyurethane comprising a substituted cresol and another costabilizer
US4724247A (en) * 1986-07-18 1988-02-09 Ethyl Corporation Antioxidant aromatic diphosphites
EP0445608B1 (de) * 1990-03-07 1994-06-08 Bayer Ag Stabilisierung von organischen Polyisocyanaten

Also Published As

Publication number Publication date
KR930005968A (ko) 1993-04-20
DE69202945T2 (de) 1995-11-02
CA2077632A1 (en) 1993-03-10
JP2988755B2 (ja) 1999-12-13
US5258548A (en) 1993-11-02
KR100234581B1 (ko) 1999-12-15
EP0531803B1 (en) 1995-06-14
EP0531803A2 (en) 1993-03-17
DE69202945D1 (de) 1995-07-20
JPH0565264A (ja) 1993-03-19
EP0531803A3 (en) 1993-05-19
BR9203478A (pt) 1993-04-27

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