NL6913239A - - Google Patents
Info
- Publication number
- NL6913239A NL6913239A NL6913239A NL6913239A NL6913239A NL 6913239 A NL6913239 A NL 6913239A NL 6913239 A NL6913239 A NL 6913239A NL 6913239 A NL6913239 A NL 6913239A NL 6913239 A NL6913239 A NL 6913239A
- Authority
- NL
- Netherlands
- Prior art keywords
- radical containing
- isocyanates
- rings
- radical
- optionally substituted
- Prior art date
Links
- 239000012948 isocyanate Substances 0.000 abstract 4
- 150000002513 isocyanates Chemical class 0.000 abstract 4
- -1 aralkyl radical Chemical class 0.000 abstract 3
- 125000001931 aliphatic group Chemical group 0.000 abstract 2
- 125000004432 carbon atom Chemical group C* 0.000 abstract 2
- 150000003254 radicals Chemical class 0.000 abstract 2
- 239000002841 Lewis acid Substances 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 150000005840 aryl radicals Chemical class 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 150000007517 lewis acids Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 abstract 1
- JOYRKODLDBILNP-UHFFFAOYSA-N urethane group Chemical group NC(=O)OCC JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 abstract 1
- 150000003673 urethanes Chemical class 0.000 abstract 1
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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/14—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides
- C07C319/20—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of sulfides by reactions not involving the formation of sulfide groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US75813868A | 1968-09-06 | 1968-09-06 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NL6913239A true NL6913239A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-03-10 |
| NL162632B NL162632B (nl) | 1980-01-15 |
| NL162632C NL162632C (nl) | 1980-06-16 |
Family
ID=25050654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6913239.A NL162632C (nl) | 1968-09-06 | 1969-08-29 | Werkwijze voor de katalytische bereiding van isocyanaten uit urethanen. |
Country Status (5)
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3870739A (en) * | 1973-03-05 | 1975-03-11 | Air Prod & Chem | Isocyanates from urethanes |
| US3919279A (en) * | 1974-06-26 | 1975-11-11 | Atlantic Richfield Co | Catalytic production of isocyanates from esters of carbamic acids |
| DE2512514C2 (de) * | 1975-03-21 | 1982-12-30 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von aliphatischen Isocyanaten |
| JPS5219624A (en) * | 1975-08-07 | 1977-02-15 | Mitsui Toatsu Chem Inc | Process for preparation of isocyanates |
| US3992430A (en) * | 1975-09-11 | 1976-11-16 | Chevron Research Company | Process for preparing aromatic isocyanates |
| DE2729990A1 (de) * | 1977-07-02 | 1979-01-18 | Bayer Ag | Verfahren zur herstellung von isocyanatgruppen aufweisenden allophanaten |
| US4255453A (en) * | 1977-08-16 | 1981-03-10 | Jordan Robert K | Production of isocyanic acid and isocyanates |
| US4123450A (en) * | 1977-09-22 | 1978-10-31 | Fmc Corporation | Process for preparing alkyl isocyanates |
| DE2756928A1 (de) * | 1977-12-21 | 1979-07-05 | Bayer Ag | Verfahren zur kontinuierlichen herstellung von monoisocyanaten |
| DE2917493A1 (de) * | 1979-04-30 | 1980-11-13 | Basf Ag | Verfahren zur herstellung von aliphatischen und cycloaliphatischen di- und polyurethanen |
| US4851565A (en) * | 1979-04-30 | 1989-07-25 | Basf Aktiengesellschaft | Catalyzed process for the preparation of an aliphatic, cycloaliphatic, arylaliphatic or aliphatic-cycloaliphatic di- or polyurethane |
| DE2917569A1 (de) * | 1979-04-30 | 1980-11-13 | Basf Ag | Verfahren zur herstellung von aromatischen di- und polyurethanen |
| US4288382A (en) * | 1979-10-10 | 1981-09-08 | Vertac, Inc. | Reversible adducts of isocyanates with boron compounds |
| JPS5679657A (en) | 1979-12-04 | 1981-06-30 | Mitsui Toatsu Chem Inc | Novel preparation of polyisocyanate |
| DE3021299A1 (de) * | 1980-06-06 | 1982-01-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur herstellung von isocyanaten |
| DE3035146A1 (de) * | 1980-09-18 | 1982-04-22 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von n- und o-substituierten mono- oder bis-urethanen, sowie deren verwendung als ausgangsmaterial zur herstellung von aliphatischen isocyanaten |
| DE3035354A1 (de) * | 1980-09-19 | 1982-04-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur herstellung von n,o-disubstituierten urethanen und ihre verwendung als ausgangsmaterial zur herstellung von organischen isocyanaten |
| 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 |
| EP0100047B1 (de) * | 1982-07-24 | 1986-02-12 | BASF Aktiengesellschaft | Verfahren zur Herstellung von Hexamethylen-diisocyanat-1,6 und/oder isomeren Diisocyanaten mit 6 Kohlenstoffatomen im Alkylenrest |
| US4587056A (en) * | 1984-04-26 | 1986-05-06 | Asahi Kasei Kogyo Kabushiki Kaisha | Process for producing an aliphatic isocyanate |
| DE4124671A1 (de) * | 1991-07-25 | 1993-01-28 | Basf Ag | Reaktor und verfahren zur thermischen spaltung von carbamidsaeureestern |
| ES2166922T3 (es) * | 1996-03-15 | 2002-05-01 | Bayer Ag | Uso de disolventes o mezclas de disolventes de alto punto de ebullicion como medio intercambiador de calor para la disociacion termica de esteres de acidos carbamicos. |
| GB0017968D0 (en) * | 2000-07-22 | 2000-09-13 | Epichem Ltd | An improved process and apparatus for the isolation of pure,or substantially pure,organometallic compounds |
| DE10209095A1 (de) * | 2002-03-01 | 2003-09-11 | Basf Ag | Verfahren zur Herstellung von Isocyanaten |
| DE602007011969D1 (de) * | 2006-11-17 | 2011-02-24 | Asahi Kasei Chemicals Corp | Verfahren zur herstellung von isocyanaten |
| TW200844080A (en) | 2007-01-11 | 2008-11-16 | Asahi Kasei Chemicals Corp | Process for producing isocyanate |
| EP2147909B1 (en) * | 2007-03-30 | 2016-12-14 | Asahi Kasei Kabushiki Kaisha | Method for production of isocyanate using composition comprising carbamic acid ester and aromatic hydroxy compound, and composition for transport or storage of carbamic acid ester |
| CA2705874C (en) * | 2007-11-19 | 2013-10-29 | Masaaki Shinohata | Process for producing isocyanates and aromatic hydroxy compounds from aromatic polycarbonate resins |
| BRPI0822694B1 (pt) | 2008-05-15 | 2018-11-27 | Asahi Kasei Chemicals Corp | processo para produzir um isocianato |
| CA2721357C (en) * | 2008-05-15 | 2014-01-07 | Asahi Kasei Chemicals Corporation | Process for producing isocyanates using diaryl carbonate |
| EA030865B1 (ru) | 2009-08-21 | 2018-10-31 | Асахи Касеи Кемикалз Корпорейшн | Способ получения сложного эфира n-замещенной карбаминовой кислоты, способ получения изоцианата с применением такого сложного эфира n-замещенной карбаминовой кислоты и композиция для транспортировки и хранения сложного эфира n-замещенной карбаминовой кислоты, содержащая сложный эфир n-замещенной карбаминовой кислоты и ароматическое гидроксисоединение |
| CN101857556A (zh) * | 2010-05-18 | 2010-10-13 | 中国科学院过程工程研究所 | 一种气相热解制备异氰酸酯的系统及其方法 |
| WO2011161029A1 (de) * | 2010-06-22 | 2011-12-29 | Basf Se | Heterogen katalysierte carbamatspaltung zur synthese von isocyanaten an festen lewis-säuren |
| EA201390235A1 (ru) | 2011-02-21 | 2013-11-29 | Асахи Касеи Кемикалз Корпорейшн | Способ получения карбонильных соединений |
-
1968
- 1968-09-06 US US00758138A patent/US3734941A/en not_active Expired - Lifetime
-
1969
- 1969-08-05 GB GB39231/69A patent/GB1247451A/en not_active Expired
- 1969-08-29 NL NL6913239.A patent/NL162632C/xx active
- 1969-09-03 DE DE1944719A patent/DE1944719B2/de not_active Ceased
- 1969-09-03 FR FR6930076A patent/FR2017496A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| NL162632C (nl) | 1980-06-16 |
| NL162632B (nl) | 1980-01-15 |
| DE1944719A1 (de) | 1970-03-12 |
| GB1247451A (en) | 1971-09-22 |
| US3734941A (en) | 1973-05-22 |
| FR2017496A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1970-05-22 |
| DE1944719B2 (de) | 1979-08-30 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| VJC | Lapsed due to non-payment of the due maintenance fee for the patent or patent application |