BR9200378A - Processo para preparacao de suportes de destilacao de tolueno diisocianato reativos e de viscosidade estavel e tolueno diisocianato tendo niveis de cloretos hidrolisaveis reduzidos - Google Patents
Processo para preparacao de suportes de destilacao de tolueno diisocianato reativos e de viscosidade estavel e tolueno diisocianato tendo niveis de cloretos hidrolisaveis reduzidosInfo
- Publication number
- BR9200378A BR9200378A BR929200378A BR9200378A BR9200378A BR 9200378 A BR9200378 A BR 9200378A BR 929200378 A BR929200378 A BR 929200378A BR 9200378 A BR9200378 A BR 9200378A BR 9200378 A BR9200378 A BR 9200378A
- Authority
- BR
- Brazil
- Prior art keywords
- toluene
- diesocianate
- diisocianate
- reactive
- supports
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/18—Separation; Purification; Stabilisation; Use of additives
- C07C263/20—Separation; Purification
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C265/00—Derivatives of isocyanic acid
- C07C265/14—Derivatives of isocyanic acid containing at least two isocyanate groups bound to the same carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Polyurethanes Or Polyureas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/647,328 US5185384A (en) | 1991-01-28 | 1991-01-28 | Method for reducing hydrolyzable chloride in toluene diisocyanate |
US07/727,707 US5216042A (en) | 1991-07-10 | 1991-07-10 | Process for preparing viscosity-stabilized reactive toluene diisocyanate distillation residues and blends thereof |
Publications (1)
Publication Number | Publication Date |
---|---|
BR9200378A true BR9200378A (pt) | 1992-10-13 |
Family
ID=27095131
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BR929200378A BR9200378A (pt) | 1991-01-28 | 1992-01-27 | Processo para preparacao de suportes de destilacao de tolueno diisocianato reativos e de viscosidade estavel e tolueno diisocianato tendo niveis de cloretos hidrolisaveis reduzidos |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0497538A3 (pt) |
JP (1) | JPH051014A (pt) |
KR (1) | KR920014768A (pt) |
CN (1) | CN1064074A (pt) |
BR (1) | BR9200378A (pt) |
MX (1) | MX9200336A (pt) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1073633C (zh) * | 1999-09-29 | 2001-10-24 | 冶金工业部钢铁研究总院 | 炼铁用球团烧结矿的制造方法 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1371633A1 (en) * | 2002-06-14 | 2003-12-17 | Bayer Ag | Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column |
EP1371634A1 (en) * | 2002-06-14 | 2003-12-17 | Bayer Ag | Process for the purification of mixtures of toluenediisocyanate |
DE102004063221A1 (de) * | 2004-12-22 | 2006-07-13 | Lanxess Deutschland Gmbh | Verfahren zur Reinigung organischer Isocyanate |
KR20160044473A (ko) * | 2013-08-19 | 2016-04-25 | 코베스트로 도이칠란트 아게 | 이소시아네이트 제조로부터의 증류 잔류물로부터 유기 이소시아네이트를 수득하는 방법 |
CN106279623A (zh) * | 2015-06-01 | 2017-01-04 | 科思创聚合物(中国)有限公司 | 异氰酸酯组合物以及由其制备的聚氨酯硬泡 |
CN109661416A (zh) * | 2016-08-05 | 2019-04-19 | 科思创聚合物(中国)有限公司 | 包含在甲苯二异氰酸酯(tdi)的生产中作为底部残留物获得的混合物的聚氨酯泡沫 |
KR101842254B1 (ko) * | 2017-05-17 | 2018-03-27 | 에스케이씨 주식회사 | 안정성 및 반응성이 개선된 자이릴렌디이소시아네이트 조성물, 및 이를 이용한 광학 렌즈 |
CN112239416B (zh) * | 2020-11-02 | 2022-09-16 | 万华化学集团股份有限公司 | 一种低水解氯和水解溴的甲苯二异氰酸酯的制备工艺 |
CN112592457B (zh) * | 2020-12-01 | 2023-04-07 | 万华化学集团股份有限公司 | 一种多异氰酸酯组合物及其制备方法和应用 |
KR20230079440A (ko) | 2020-12-01 | 2023-06-07 | 완후아 케미컬 그룹 코., 엘티디 | 폴리이소시아네이트 조성물, 이의 제조 방법 및 응용 |
CN114045177B (zh) * | 2021-10-18 | 2023-03-28 | 万华化学集团股份有限公司 | Tdi稳定化焦油的生产及利用方法 |
CN114315648B (zh) * | 2022-01-11 | 2023-03-03 | 黎明化工研究设计院有限责任公司 | 一种降低异氰酸酯中水解氯含量的方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1080717A (en) * | 1965-07-30 | 1967-08-23 | Ici Ltd | Purification of crude organic polyisocyanates |
GB1112450A (en) * | 1965-11-11 | 1968-05-08 | Olin Mathieson | Purification of organic isocyanates |
GB1114690A (en) * | 1966-05-26 | 1968-05-22 | Ici Ltd | Stabilisation process |
GB1384065A (en) * | 1971-11-30 | 1975-02-19 | Ici Ltd | Process for the purification of organic isocyanates |
-
1992
- 1992-01-27 BR BR929200378A patent/BR9200378A/pt not_active Application Discontinuation
- 1992-01-27 EP EP19920300682 patent/EP0497538A3/en not_active Withdrawn
- 1992-01-27 MX MX9200336A patent/MX9200336A/es not_active IP Right Cessation
- 1992-01-27 KR KR1019920001106A patent/KR920014768A/ko not_active Application Discontinuation
- 1992-01-27 JP JP4012073A patent/JPH051014A/ja active Pending
- 1992-01-27 CN CN92100452A patent/CN1064074A/zh active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1073633C (zh) * | 1999-09-29 | 2001-10-24 | 冶金工业部钢铁研究总院 | 炼铁用球团烧结矿的制造方法 |
Also Published As
Publication number | Publication date |
---|---|
EP0497538A3 (en) | 1993-01-13 |
KR920014768A (ko) | 1992-08-25 |
CN1064074A (zh) | 1992-09-02 |
EP0497538A2 (en) | 1992-08-05 |
MX9200336A (es) | 1992-10-01 |
JPH051014A (ja) | 1993-01-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EG | Technical examination (opinion): publication of technical examination (opinion) | ||
FC | Decision: refusal |