DE69213678D1 - Verfahren zur Herstellung von Polyaminen für helleren auf Polyisocyanat basierenden Schaum - Google Patents
Verfahren zur Herstellung von Polyaminen für helleren auf Polyisocyanat basierenden SchaumInfo
- Publication number
- DE69213678D1 DE69213678D1 DE69213678T DE69213678T DE69213678D1 DE 69213678 D1 DE69213678 D1 DE 69213678D1 DE 69213678 T DE69213678 T DE 69213678T DE 69213678 T DE69213678 T DE 69213678T DE 69213678 D1 DE69213678 D1 DE 69213678D1
- Authority
- DE
- Germany
- Prior art keywords
- polyamines
- polyisocyanate
- lighter
- production
- based foam
- 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 - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7685—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing two or more non-condensed aromatic rings directly linked to each other
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G2101/00—Manufacture of cellular products
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/805,407 US5386059A (en) | 1991-12-10 | 1991-12-10 | Process for preparing polyamines for lighter color polyisocyanate based foam |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69213678D1 true DE69213678D1 (de) | 1996-10-17 |
DE69213678T2 DE69213678T2 (de) | 1997-01-23 |
Family
ID=25191496
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69213678T Expired - Fee Related DE69213678T2 (de) | 1991-12-10 | 1992-11-27 | Verfahren zur Herstellung von Polyaminen für helleren auf Polyisocyanat basierenden Schaum |
Country Status (8)
Country | Link |
---|---|
US (2) | US5386059A (de) |
EP (1) | EP0546398B1 (de) |
JP (1) | JP3352739B2 (de) |
KR (1) | KR100244696B1 (de) |
BR (1) | BR9204958A (de) |
CA (1) | CA2084957C (de) |
DE (1) | DE69213678T2 (de) |
ES (1) | ES2091390T3 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19711447A1 (de) * | 1997-03-19 | 1998-09-24 | Basf Ag | Verfahren zur Herstellung von Isocyanaten mit heller Farbe |
DE19928741A1 (de) | 1999-06-23 | 2000-12-28 | Basf Ag | Helle Isocyanate, Verfahren zu deren Herstellung und deren Verwendung |
DE10211021A1 (de) * | 2002-03-13 | 2003-09-25 | Bayer Ag | Verfahren zur Herstellung von Polyisocyanaten der Diphenylmethanreihe mit vermindertem Farbwert |
US20060117964A1 (en) * | 2004-06-18 | 2006-06-08 | Cauchois Sean M | Method for generating a smoke |
DE102006002157A1 (de) * | 2006-01-17 | 2007-07-19 | Bayer Materialscience Ag | Verfahren zur Herstellung heller Isocyanate |
HUE027861T2 (en) * | 2007-11-14 | 2016-11-28 | Covestro Deutschland Ag | Preparation of pale isocyanates |
US8802890B2 (en) * | 2008-11-26 | 2014-08-12 | Huntsman International Llc | Process for manufacturing isocyanates |
US8841480B2 (en) | 2009-07-16 | 2014-09-23 | Basf Se | Process for the preparation of light-colored iocyanates of a diphenylmethanediisocyanate series |
CN103874680B (zh) | 2011-10-21 | 2016-07-06 | 拜耳知识产权有限责任公司 | 生产浅色多异氰酸酯的方法 |
CN109761855B (zh) | 2018-12-20 | 2020-07-28 | 万华化学集团股份有限公司 | 一种制备异佛尔酮二异氰酸酯的方法 |
CN112250584B (zh) * | 2020-08-31 | 2024-06-25 | 万华化学集团股份有限公司 | 一种二苯基甲烷系列二胺与多胺制备过程中苯胺的回收利用方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE794327A (fr) * | 1972-01-26 | 1973-07-19 | Ici Ltd | Procede de production de polyphenylpolyisocyanates |
DE2356828C2 (de) * | 1973-11-14 | 1982-10-21 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Polyaminen und ihre Verwendung als Ausgangsmaterial zur Herstellung von Polyisocyanaten |
DE2404774A1 (de) * | 1974-02-01 | 1975-08-21 | Basf Ag | Verfahren zur herstellung von organischen isocyanaten |
DE2750975A1 (de) * | 1976-11-19 | 1978-05-24 | Mobay Chemical Corp | Verfahren zur herstellung von polyaminen der diphenylmethan-reihe |
US4465639A (en) * | 1983-01-26 | 1984-08-14 | The Upjohn Company | Process for polyisocyanates |
US4792624A (en) * | 1987-02-26 | 1988-12-20 | The Dow Chemical Company | Process for polymeric MDA, recycle of finished polymeric MDA |
US5173521A (en) * | 1990-06-19 | 1992-12-22 | Mishima Paper Co., Ltd. | Absorbent fibrous structure and producing method thereof |
DE4112131A1 (de) * | 1991-04-13 | 1992-10-15 | Bayer Ag | Verfahren zur herstellung von mehrkernigen aromatischen polyaminen |
US5310769A (en) * | 1992-05-01 | 1994-05-10 | Bayer Aktiengesellschaft | Process for the production of polyamine mixtures of the polyamino-polyaryl-polymethylene series |
US5312971A (en) * | 1992-07-23 | 1994-05-17 | Miles Inc. | Color reduction of polymethylene polyphenyl polyisocyanates |
US5286760A (en) * | 1992-10-09 | 1994-02-15 | Miles, Inc. | Process for reducing impurity levels in methylene diphenyamines |
-
1991
- 1991-12-10 US US07/805,407 patent/US5386059A/en not_active Expired - Lifetime
-
1992
- 1992-11-27 DE DE69213678T patent/DE69213678T2/de not_active Expired - Fee Related
- 1992-11-27 EP EP92120304A patent/EP0546398B1/de not_active Expired - Lifetime
- 1992-11-27 ES ES92120304T patent/ES2091390T3/es not_active Expired - Lifetime
- 1992-12-08 JP JP35141192A patent/JP3352739B2/ja not_active Expired - Fee Related
- 1992-12-09 BR BR9204958A patent/BR9204958A/pt not_active Application Discontinuation
- 1992-12-09 CA CA002084957A patent/CA2084957C/en not_active Expired - Fee Related
- 1992-12-09 KR KR1019920023674A patent/KR100244696B1/ko not_active IP Right Cessation
-
1994
- 1994-10-13 US US08/322,815 patent/US5484819A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2084957A1 (en) | 1993-06-11 |
US5484819A (en) | 1996-01-16 |
EP0546398A2 (de) | 1993-06-16 |
JP3352739B2 (ja) | 2002-12-03 |
US5386059A (en) | 1995-01-31 |
BR9204958A (pt) | 1993-06-15 |
DE69213678T2 (de) | 1997-01-23 |
KR100244696B1 (ko) | 2000-02-15 |
EP0546398A3 (en) | 1993-09-01 |
ES2091390T3 (es) | 1996-11-01 |
JPH05320297A (ja) | 1993-12-03 |
CA2084957C (en) | 2003-06-17 |
EP0546398B1 (de) | 1996-09-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |