JPS5522473B2 - - Google Patents

Info

Publication number
JPS5522473B2
JPS5522473B2 JP10150272A JP10150272A JPS5522473B2 JP S5522473 B2 JPS5522473 B2 JP S5522473B2 JP 10150272 A JP10150272 A JP 10150272A JP 10150272 A JP10150272 A JP 10150272A JP S5522473 B2 JPS5522473 B2 JP S5522473B2
Authority
JP
Japan
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
JP10150272A
Other versions
JPS4848455A (ja
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 filed Critical
Publication of JPS4848455A publication Critical patent/JPS4848455A/ja
Publication of JPS5522473B2 publication Critical patent/JPS5522473B2/ja
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
JP10150272A 1971-10-18 1972-10-09 Expired JPS5522473B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US19037971A 1971-10-18 1971-10-18

Publications (2)

Publication Number Publication Date
JPS4848455A JPS4848455A (ja) 1973-07-09
JPS5522473B2 true JPS5522473B2 (ja) 1980-06-17

Family

ID=22701092

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10150272A Expired JPS5522473B2 (ja) 1971-10-18 1972-10-09

Country Status (5)

Country Link
US (1) US3793362A (ja)
JP (1) JPS5522473B2 (ja)
DE (1) DE2249375C3 (ja)
GB (1) GB1353570A (ja)
NL (1) NL7212468A (ja)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3925437A (en) * 1974-07-18 1975-12-09 Jefferson Chem Co Inc Reduction of acidity of organic polymeric isocyanates
US4118286A (en) * 1974-09-25 1978-10-03 Texaco Development Corp. Process for reducing the acidity of organic polymeric isocyanates
US3969288A (en) * 1974-10-02 1976-07-13 Basf Wyandotte Corporation Carbodiimide-isocyanurate foams prepared from acid-modified toluene diisocyanate
US4310688A (en) * 1979-10-22 1982-01-12 The Dow Chemical Company Reduction of hydrolyzable chloride impurities in an isocyanatoalkyl ester of an organic carboxylic acid
US4661627A (en) * 1986-08-19 1987-04-28 The Dow Chemical Company Method for scavenging acidic impurities from polymeric isocyanates
US4904704A (en) * 1988-12-22 1990-02-27 The Dow Chemical Company Rigid foams prepared from treated toluene diisocyanate residue
DE4021712A1 (de) * 1990-07-07 1992-01-09 Basf Ag Verfahren zur herstellung von mischungen aus diphenylmethan-diisocyanaten und polyphenol-polymethylen-polyisocyanaten mit einer verminderten iodfarbzahl
US5726240A (en) * 1996-11-25 1998-03-10 Bayer Corporation Reactivity stabilization of polymethylene poly(phenylisocyanates)
US5837794A (en) * 1997-10-27 1998-11-17 Bayer Corporation Toluene diisocyanate residue-based compositions having reduced acid values
US5783652A (en) * 1997-11-04 1998-07-21 Bayer Corporation Reactivity improvement of urethane prepolymers of allophanate-modified diphenylmethane diisocyanates
JP4273531B2 (ja) * 1998-02-06 2009-06-03 昭和電工株式会社 イソシアナトアルキル（メタ）アクリレートの製造方法
US6166128A (en) * 1998-12-08 2000-12-26 Bayer Corporation Color reduction of polymethylene poly (phenylisocyanates)
US6127463A (en) * 1999-03-23 2000-10-03 Bayer Corporation Polymeric MDI color reduction
DE19914291A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen Isocyanaten
DE19914292A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Verringerung des Chlorgehaltes von organischen Isocyanaten
DE19922572A1 (de) 1999-05-17 2000-11-23 Bayer Ag Verfahren zur Reinigung von organischen Isocyanaten, die so gereinigten organischen Isocyanate und ihre Verwendung
US6528609B1 (en) 2001-12-13 2003-03-04 Bayer Corporation Allophanates of polymeric MDI
DE10333929A1 (de) * 2003-07-25 2005-02-24 Bayer Materialscience Ag Herstellung von Mischungen von Di- und Polyisocyanaten der Diphenylmethanreihe mit hohen Gehalten an 4,4'-Methylendiphenyldiisocyanat und 2,4'-Methylendiphenyldiisocyanat
US20050282989A1 (en) * 2004-06-17 2005-12-22 Rosthauser James W TDI prepolymers with improved processing characteristics
US7030274B2 (en) * 2004-06-17 2006-04-18 Bayer Materialscience Llc Process for the production of carbodiimide modified organic isocyanates
US20090082481A1 (en) * 2007-09-21 2009-03-26 O'connor James Preparation of liquid isocyanurate-modified polymethylene bis(phenylisocyanate) compositions of controlled viscosities

Also Published As

Publication number Publication date
JPS4848455A (ja) 1973-07-09
US3793362A (en) 1974-02-19
NL7212468A (ja) 1973-04-24
DE2249375B2 (de) 1981-02-26
DE2249375A1 (de) 1973-04-26
DE2249375C3 (de) 1982-02-18
GB1353570A (en) 1974-05-22

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