ES8106884A1 - Procedimiento para la obtencion de uretanos - Google Patents

Procedimiento para la obtencion de uretanos

Info

Publication number
ES8106884A1
ES8106884A1 ES496233A ES496233A ES8106884A1 ES 8106884 A1 ES8106884 A1 ES 8106884A1 ES 496233 A ES496233 A ES 496233A ES 496233 A ES496233 A ES 496233A ES 8106884 A1 ES8106884 A1 ES 8106884A1
Authority
ES
Spain
Prior art keywords
preparation
urethanes
isocyanates
alcohol
isocyanate
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
ES496233A
Other languages
English (en)
Other versions
ES496233A0 (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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6084588&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8106884(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Bayer AG filed Critical Bayer AG
Publication of ES496233A0 publication Critical patent/ES496233A0/es
Publication of ES8106884A1 publication Critical patent/ES8106884A1/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C271/00—Derivatives of carbamic acids, i.e. compounds containing any of the groups, the nitrogen atom not being part of nitro or nitroso groups
    • C07C271/06—Esters of carbamic acids

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyesters Or Polycarbonates (AREA)
  • Catalysts (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Circuits Of Receivers In General (AREA)
  • External Artificial Organs (AREA)
  • Peptides Or Proteins (AREA)

Abstract

PROCEDIMIENTO DE OBTENCION DE URETANOS DE FORMULA (I), DONDE R1 ES UN RESTO ORGANICO OBTENIDO POR ELIMINACION DE LOS GRUPOS ISOCIANATO DE UN ISOCIANATO ORGANICO N-VALENTE, R3 UN RESTO OBTENIDO POR ELIMINACION DEL GRUPO HIDROXILO DE UN ALCOHOL MONOVALENTE Y N ES 1, 2 O 3. UN URETANO DE FORMULA (II), DONDE R2 ES UN RESTO OBTENIDO POR ELIMINACION DEL GRUPO HIDROXILO DE UN ALCOHOL DE FORMULA (III), OPCIONALMENTE EN PRESENCIA DE CATALIZADORES Y DISOLVENTES. LA RELACION MOLAR EN LA MEZCLA ES 1 MOL DE URETANO: N MOLES DE ALCOHOL. LA REACCION PUEDE EFECTUARSE EN FASE LIQUIDA O GASEOSA. EL URETANO FINAL SE AISLA DE LA MEZCLA POR DESTILACION, EXTRACCION O CRISTALIZACION. LOS URETANOS OBTENIDOS SE USAN COMO PRODUCTOS DE PARTIDA EN LA PRODUCCION DE ISOCIANATOS POR DISOCIACION TERMICA. R1(NHCOOR3)N (I), R1(NHCOOR2)N (II), R3-OH (III).
ES496233A 1979-10-27 1980-10-24 Procedimiento para la obtencion de uretanos Expired ES8106884A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792943549 DE2943549A1 (de) 1979-10-27 1979-10-27 Verfahren zur herstellung von urethanen und ihre verwendung zur herstellung von isocyanaten

Publications (2)

Publication Number Publication Date
ES496233A0 ES496233A0 (es) 1981-09-16
ES8106884A1 true ES8106884A1 (es) 1981-09-16

Family

ID=6084588

Family Applications (1)

Application Number Title Priority Date Filing Date
ES496233A Expired ES8106884A1 (es) 1979-10-27 1980-10-24 Procedimiento para la obtencion de uretanos

Country Status (10)

Country Link
US (1) US4594441A (es)
EP (1) EP0027954B1 (es)
JP (1) JPS57112362A (es)
AT (1) ATE1857T1 (es)
AU (1) AU538607B2 (es)
BR (1) BR8006864A (es)
CA (1) CA1144563A (es)
DE (2) DE2943549A1 (es)
ES (1) ES8106884A1 (es)
ZA (1) ZA806549B (es)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8402995D0 (en) * 1984-02-04 1984-03-07 Bp Chem Int Ltd Transesterification process
JPH03289743A (ja) * 1990-04-05 1991-12-19 Nec Shizuoka Ltd 電話器
CN102015615A (zh) * 2008-04-01 2011-04-13 Sk化学株式会社 使用脂肪酸制备脂肪酸烷基酯的方法
CN102634382A (zh) * 2012-03-22 2012-08-15 东营职业学院 一种超声空化金属弱酸盐催化地沟油制备生物柴油的方法

Family Cites Families (4)

* 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
US2806051A (en) * 1955-11-01 1957-09-10 Goodrich Co B F Method for preparing urethanes by reacting urea, amines and an alcohol
US3098093A (en) * 1961-02-06 1963-07-16 Eastman Kodak Co Process for the production of esters by alcoholysis
US3950285A (en) * 1974-04-04 1976-04-13 Atlantic Richfield Company Preparation of polymeric urethanes from dicarbamates

Also Published As

Publication number Publication date
JPS57112362A (en) 1982-07-13
ATE1857T1 (de) 1982-12-15
EP0027954B1 (de) 1982-11-24
US4594441A (en) 1986-06-10
DE2943549A1 (de) 1981-05-07
BR8006864A (pt) 1981-04-28
DE3061163D1 (en) 1982-12-30
EP0027954A1 (de) 1981-05-06
JPS6411016B2 (es) 1989-02-23
ES496233A0 (es) 1981-09-16
CA1144563A (en) 1983-04-12
AU538607B2 (en) 1984-08-23
ZA806549B (en) 1981-11-25
AU6371780A (en) 1981-04-30

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20020506