BR7503729A - Processo para a producao de isocianatos - Google Patents

Processo para a producao de isocianatos

Info

Publication number
BR7503729A
BR7503729A BR4790/75D BR7504790D BR7503729A BR 7503729 A BR7503729 A BR 7503729A BR 4790/75 D BR4790/75 D BR 4790/75D BR 7504790 D BR7504790 D BR 7504790D BR 7503729 A BR7503729 A BR 7503729A
Authority
BR
Brazil
Prior art keywords
isocianates
production
Prior art date
Application number
BR4790/75D
Other languages
English (en)
Inventor
R Rosenthal
J Zajacek
Original Assignee
Atlantic Richfield Co
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 Atlantic Richfield Co filed Critical Atlantic Richfield Co
Publication of BR7503729A publication Critical patent/BR7503729A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C263/00—Preparation of derivatives of isocyanic acid
    • C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides
BR4790/75D 1974-06-13 1975-06-13 Processo para a producao de isocianatos BR7503729A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US479077A US3919278A (en) 1974-06-13 1974-06-13 Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids

Publications (1)

Publication Number Publication Date
BR7503729A true BR7503729A (pt) 1976-07-06

Family

ID=23902574

Family Applications (1)

Application Number Title Priority Date Filing Date
BR4790/75D BR7503729A (pt) 1974-06-13 1975-06-13 Processo para a producao de isocianatos

Country Status (13)

Country Link
US (1) US3919278A (pt)
JP (1) JPS5113745A (pt)
AR (1) AR203241A1 (pt)
BE (1) BE830135A (pt)
BR (1) BR7503729A (pt)
CA (1) CA1049029A (pt)
DE (1) DE2526193B2 (pt)
ES (1) ES438494A1 (pt)
FR (1) FR2274608A1 (pt)
GB (1) GB1503965A (pt)
IT (1) IT1038828B (pt)
NL (1) NL7506999A (pt)
ZA (1) ZA753548B (pt)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4133868A (en) * 1977-08-16 1979-01-09 Idram Engineering Company Est. Isocyanates process III
JPS5679657A (en) * 1979-12-04 1981-06-30 Mitsui Toatsu Chem Inc Novel preparation of polyisocyanate
DE3047898A1 (de) * 1980-12-19 1982-07-15 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern und die verwendung von hierbei anfallenden isocyanate und carbamidsaeureester aufweisenden gemischen zur herstellung von isocyanaten
DE3108990A1 (de) * 1981-03-10 1982-09-23 Bayer Ag, 5090 Leverkusen Verfahren zur herstellung von polyisocyanaten
US4487713A (en) * 1981-06-26 1984-12-11 Exxon Research & Engineering Co. Production of isocyanates from esters of aromatic carbamic acids (urethanes)
DE3215591A1 (de) * 1982-04-27 1983-10-27 Bayer Ag, 5090 Leverkusen Verfahren zur kontinuierlichen thermischen spaltung von carbamidsaeureestern
US4633010A (en) * 1982-12-27 1986-12-30 American Cyanamid Company Tertiary aralkyl triurethane
IT1164223B (it) * 1983-05-13 1987-04-08 Anic Spa Procedimento perfezionato per la produzione di isocianati alchilici
JPS6427716A (en) * 1987-07-21 1989-01-30 Nippon Steel Corp Manufacture of corrosion resistant duplex tube
DE3915181A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4137428A1 (de) * 1991-11-14 1993-05-19 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE4141402A1 (de) * 1991-12-16 1993-06-17 Bayer Ag Verfahren zur herstellung von hochreinen aromatischen di- und/oder polyurethanen
US5233010A (en) * 1992-10-15 1993-08-03 Monsanto Company Process for preparing isocyanate and carbamate ester products
EP0680994A1 (en) * 1994-05-02 1995-11-08 Nippon Paint Co., Ltd. Re-Crosslinkable composition and method for recycling using the same
DE59705127D1 (de) * 1996-03-15 2001-12-06 Bayer Ag Verwendung von hochsiedenden Lösemitteln bzw. -gemischen als Wärmetauschmedium für die thermische Spaltung von Carbamidsäureestern
EP1259480B1 (en) * 2000-02-29 2005-10-05 Huntsman International Llc Process for the preparation of organic polyisocyanates
WO2011067242A1 (de) * 2009-12-01 2011-06-09 Basf Se Verfahren zur herstellung von isocyanaten durch thermische spaltung von carbamaten
US9884810B2 (en) * 2010-10-04 2018-02-06 Asahi Kasei Chemicals Corporation Separation method and method for producing isocyanate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2409712A (en) * 1944-02-03 1946-10-22 Du Pont Chemical process and products

Also Published As

Publication number Publication date
AR203241A1 (es) 1975-08-22
FR2274608A1 (fr) 1976-01-09
ZA753548B (en) 1976-04-28
IT1038828B (it) 1979-11-30
AU8167375A (en) 1976-12-02
JPS5113745A (pt) 1976-02-03
DE2526193B2 (de) 1978-03-30
NL7506999A (nl) 1975-12-16
CA1049029A (en) 1979-02-20
FR2274608B1 (pt) 1980-08-08
GB1503965A (en) 1978-03-15
DE2526193A1 (de) 1975-12-18
BE830135A (fr) 1975-10-01
ES438494A1 (es) 1977-02-01
US3919278A (en) 1975-11-11

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