NL7212468A - - Google Patents

Info

Publication number
NL7212468A
NL7212468A NL7212468A NL7212468A NL7212468A NL 7212468 A NL7212468 A NL 7212468A NL 7212468 A NL7212468 A NL 7212468A NL 7212468 A NL7212468 A NL 7212468A NL 7212468 A NL7212468 A NL 7212468A
Authority
NL
Netherlands
Application number
NL7212468A
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 NL7212468A publication Critical patent/NL7212468A/xx

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00Preparation of derivatives of isocyanic acid
    • C07C263/18Separation; 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)
NL7212468A 1971-10-18 1972-09-14 NL7212468A (xx)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
NL7212468A true NL7212468A (xx) 1973-04-24

Family

ID=22701092

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7212468A NL7212468A (xx) 1971-10-18 1972-09-14

Country Status (5)

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

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
DE19914292A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Verringerung des Chlorgehaltes von organischen Isocyanaten
DE19914291A1 (de) 1999-03-30 2000-10-05 Bayer Ag Verfahren zur Absenkung des Chlorgehaltes von niedermolekularen 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
GB1353570A (en) 1974-05-22
JPS5522473B2 (xx) 1980-06-17
DE2249375C3 (de) 1982-02-18
JPS4848455A (xx) 1973-07-09
DE2249375B2 (de) 1981-02-26
US3793362A (en) 1974-02-19
DE2249375A1 (de) 1973-04-26

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