ES8301900A1 - Procedimiento para la obtencion de poliisocianatos. - Google Patents

Procedimiento para la obtencion de poliisocianatos.

Info

Publication number
ES8301900A1
ES8301900A1 ES510255A ES510255A ES8301900A1 ES 8301900 A1 ES8301900 A1 ES 8301900A1 ES 510255 A ES510255 A ES 510255A ES 510255 A ES510255 A ES 510255A ES 8301900 A1 ES8301900 A1 ES 8301900A1
Authority
ES
Spain
Prior art keywords
splitting
polyisocyanates
alcohol
isocyanate
chlorides
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
Application number
ES510255A
Other languages
English (en)
Spanish (es)
Other versions
ES510255A0 (es
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of ES510255A0 publication Critical patent/ES510255A0/es
Publication of ES8301900A1 publication Critical patent/ES8301900A1/es
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
    • C07C263/04—Preparation of derivatives of isocyanic acid from or via carbamates or carbamoyl halides

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
ES510255A 1981-03-10 1982-03-09 Procedimiento para la obtencion de poliisocianatos. Expired ES8301900A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813108990 DE3108990A1 (de) 1981-03-10 1981-03-10 Verfahren zur herstellung von polyisocyanaten

Publications (2)

Publication Number Publication Date
ES510255A0 ES510255A0 (es) 1983-01-16
ES8301900A1 true ES8301900A1 (es) 1983-01-16

Family

ID=6126784

Family Applications (1)

Application Number Title Priority Date Filing Date
ES510255A Expired ES8301900A1 (es) 1981-03-10 1982-03-09 Procedimiento para la obtencion de poliisocianatos.

Country Status (7)

Country Link
US (1) US4388246A (enExample)
EP (1) EP0061013B1 (enExample)
JP (1) JPS57159752A (enExample)
BR (1) BR8201250A (enExample)
CA (1) CA1178968A (enExample)
DE (2) DE3108990A1 (enExample)
ES (1) ES8301900A1 (enExample)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3362121D1 (en) * 1982-07-24 1986-03-27 Basf Ag Process for the preparation of hexamethylene diisocyanate-1,6 and/or of the isomeric diisocyanates with 6 carbon atoms in the alkyl group
DE3314788A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von hexamethylendiisocyanat-1,6 und/oder isomeren aliphatischen diisocyanaten mit 6 kohlenstoffatomen im alkylenrest
DE3314790A1 (de) * 1983-04-23 1984-10-25 Basf Ag, 6700 Ludwigshafen Mehrstufenverfahren zur herstellung von 3-isocyanatomethyl-3,5,5-trimethyl-cyclohexylisocyanat
DE3325185A1 (de) * 1983-07-13 1985-01-24 Basf Ag, 6700 Ludwigshafen In 3-stellung heterocyclische oder 3-dialkylamino-2,2-dialkyl-propylisocyanate und verfahren zur herstellung von in 3-stellung heterocyclischen oder 3-dialkylamino-2,2-dialkylpropylisocyanaten
US4587056A (en) * 1984-04-26 1986-05-06 Asahi Kasei Kogyo Kabushiki Kaisha Process for producing an aliphatic isocyanate
US4572804A (en) * 1984-12-17 1986-02-25 The Dow Chemical Company Preparation of unsaturated isocyanates
JP2538222B2 (ja) * 1986-12-26 1996-09-25 ダイセル化学工業株式会社 イソホロンジイソシアネ−トの製造方法
DE3828033A1 (de) * 1988-08-18 1990-03-08 Huels Chemische Werke Ag Kreislaufverfahren zur herstellung von (cyclo)aliphatischen diisocyanaten
DE3915183A1 (de) * 1989-05-10 1990-11-15 Bayer Ag Verfahren zur herstellung von polyisocyanaten
DE3915181A1 (de) * 1989-05-10 1990-11-15 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
DE4342426A1 (de) * 1993-12-13 1995-06-14 Bayer Ag Verfahren zur Herstellung von Diurethanen und ihre Verwendung zur Herstellung von Diisocyanaten
JP3083039B2 (ja) * 1994-03-18 2000-09-04 三菱瓦斯化学株式会社 イソシアネート類の製造方法
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
DE10338508A1 (de) * 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE10338509A1 (de) 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE10338511A1 (de) * 2003-08-22 2005-03-17 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE102004022626A1 (de) 2004-05-07 2005-12-15 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE102004026451A1 (de) 2004-05-29 2005-12-15 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
DE102004036499A1 (de) * 2004-07-28 2006-03-23 Degussa Ag Mehrstufiges Verfahren zur kontinuierlichen Herstellung von cycloaliphatischen Diisocyanaten
TWI361179B (en) * 2006-11-17 2012-04-01 Asahi Kasei Chemicals Corp A process for producing isocyanates
TW200844080A (en) 2007-01-11 2008-11-16 Asahi Kasei Chemicals Corp Process for producing isocyanate
JP4958971B2 (ja) * 2007-03-30 2012-06-20 旭化成ケミカルズ株式会社 カルバミン酸エステルおよび芳香族ヒドロキシ化合物を含む組成物を用いるイソシアネートの製造方法、ならびにカルバミン酸エステル移送用および貯蔵用組成物
US7977504B2 (en) * 2007-11-19 2011-07-12 Asahi Kasei Chemicals Corporation Process for producing isocyanates and aromatic hydroxy compounds
CA2721357C (en) * 2008-05-15 2014-01-07 Asahi Kasei Chemicals Corporation Process for producing isocyanates using diaryl carbonate
ES2710177T3 (es) * 2008-05-15 2019-04-23 Asahi Chemical Ind Proceso para la producción de isocianato
DE102008002002A1 (de) 2008-05-27 2009-12-03 Evonik Degussa Gmbh Chlor armes mehrstufiges Verfahren zur Herstellung von cycloaliphatischen Diisocyanaten
CN101962348A (zh) * 2009-07-23 2011-02-02 中国科学院兰州化学物理研究所 一种液相热裂解制备异氰酸酯的方法
EP3153499B1 (en) 2009-08-21 2018-09-19 Asahi Kasei Kabushiki Kaisha Method for producing n-substituted carbamic acid ester
TWI504584B (zh) 2011-02-21 2015-10-21 Asahi Kasei Chemicals Corp 羰基化合物之製造方法
KR101348229B1 (ko) 2011-12-14 2014-01-08 경희대학교 산학협력단 지방족 디이소시아네이트의 제조방법
EP3250622B1 (de) 2015-01-30 2018-11-07 Basf Se Nebenproduktarme polyphenylenpolymethylenpolyisocyanate

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2713591A (en) * 1955-07-19 boc boctanaib
US2409712A (en) * 1944-02-03 1946-10-22 Du Pont Chemical process and products
US2437867A (en) * 1946-06-01 1948-03-16 Du Pont Organic isocyanates
US2692275A (en) * 1953-01-23 1954-10-19 Rohm & Haas Preparation of 1, 8-diisocyanato-p-menthane
GB763635A (enExample) * 1953-04-10
US3734941A (en) * 1968-09-06 1973-05-22 American Cyanamid Co Process for converting urethanes to isocyanates
US3962302A (en) * 1974-03-08 1976-06-08 Atlantic Richfield Company Production of isocyanates from esters of carbamic acids (urethanes)
US3919278A (en) * 1974-06-13 1975-11-11 Atlantic Richfield Co Production of isocyanates from lower alkyl esters of mononuclear aromatic carbamic acids
US3919279A (en) * 1974-06-26 1975-11-11 Atlantic Richfield Co Catalytic production of isocyanates from esters of carbamic acids
DE2625075A1 (de) * 1976-06-04 1977-12-22 Basf Ag Verfahren zur herstellung von carbamidsaeurechloriden und isocyanaten

Also Published As

Publication number Publication date
ES510255A0 (es) 1983-01-16
EP0061013A1 (de) 1982-09-29
CA1178968A (en) 1984-12-04
JPS57159752A (en) 1982-10-01
DE3108990A1 (de) 1982-09-23
US4388246A (en) 1983-06-14
DE3260284D1 (en) 1984-08-02
BR8201250A (pt) 1983-01-18
EP0061013B1 (de) 1984-06-27
JPH0229073B2 (enExample) 1990-06-27

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