FR2014838A1 - - Google Patents

Info

Publication number
FR2014838A1
FR2014838A1 FR6925263A FR6925263A FR2014838A1 FR 2014838 A1 FR2014838 A1 FR 2014838A1 FR 6925263 A FR6925263 A FR 6925263A FR 6925263 A FR6925263 A FR 6925263A FR 2014838 A1 FR2014838 A1 FR 2014838A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6925263A
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.)
Kaiser Aluminum and Chemical Corp
Original Assignee
Kaiser Aluminum and Chemical 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 Kaiser Aluminum and Chemical Corp filed Critical Kaiser Aluminum and Chemical Corp
Publication of FR2014838A1 publication Critical patent/FR2014838A1/fr
Withdrawn legal-status Critical Current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
    • C07C263/20—Separation; Purification
FR6925263A 1968-08-01 1969-07-24 Withdrawn FR2014838A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US74934668A 1968-08-01 1968-08-01
US77279068A 1968-11-01 1968-11-01

Publications (1)

Publication Number Publication Date
FR2014838A1 true FR2014838A1 (fr) 1970-04-24

Family

ID=27115103

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6925263A Withdrawn FR2014838A1 (fr) 1968-08-01 1969-07-24

Country Status (5)

Country Link
BE (1) BE736785A (fr)
DE (1) DE1938384A1 (fr)
FR (1) FR2014838A1 (fr)
GB (1) GB1229181A (fr)
NL (1) NL6911680A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118410A (en) 1971-02-04 1978-10-03 Gottfried Reuter Gmbh I.L. Polyphenyl-polymethylene-polyisocyanate mixtures

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3145010A1 (de) 1981-11-12 1983-05-19 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von 4,4'-diisocyanatodiphenylmethan
US4661627A (en) * 1986-08-19 1987-04-28 The Dow Chemical Company Method for scavenging acidic impurities from polymeric isocyanates
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
DE102004005320A1 (de) * 2004-02-04 2005-08-25 Bayer Materialscience Ag Herstellung von Di- und Polysocyanaten der Diphenylmethanreihe mit definierter Acidität
DE102005026864A1 (de) 2005-06-10 2006-12-14 Bayer Materialscience Ag Verfahren zur Herstellung von 4,4'-Diphenylmethandiisocyanat
BR112013012255A2 (pt) 2010-11-17 2016-08-09 Basf Se processo para preparar di - isocianato de metileno difenila
US8907124B2 (en) 2010-11-17 2014-12-09 Basf Se Process for preparing methylenedi(phenyl isocyanate)
CN112142623A (zh) * 2019-06-27 2020-12-29 万华化学（宁波）有限公司 一种低活性的mdi-50产品的制备方法及应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118410A (en) 1971-02-04 1978-10-03 Gottfried Reuter Gmbh I.L. Polyphenyl-polymethylene-polyisocyanate mixtures

Also Published As

Publication number Publication date
GB1229181A (fr) 1971-04-21
NL6911680A (fr) 1970-02-03
BE736785A (fr) 1969-12-31
DE1938384A1 (de) 1970-03-26

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Legal Events

Date Code Title Description
ST Notification of lapse