BR7303235D0 - Processo de cristalizacao de di-isocianatos em uma mistura de poli-isocianatos e as misturas de poli-isocianatos obtidas pelo dito processo - Google Patents

Processo de cristalizacao de di-isocianatos em uma mistura de poli-isocianatos e as misturas de poli-isocianatos obtidas pelo dito processo

Info

Publication number
BR7303235D0
BR7303235D0 BR323573A BR323573A BR7303235D0 BR 7303235 D0 BR7303235 D0 BR 7303235D0 BR 323573 A BR323573 A BR 323573A BR 323573 A BR323573 A BR 323573A BR 7303235 D0 BR7303235 D0 BR 7303235D0
Authority
BR
Brazil
Prior art keywords
isociates
poly
mixtures
mixture
crystallization process
Prior art date
Application number
BR323573A
Other languages
English (en)
Portuguese (pt)
Inventor
D Adsley
R Smith
Original Assignee
Ici Ltd
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 Ici Ltd filed Critical Ici Ltd
Publication of BR7303235D0 publication Critical patent/BR7303235D0/pt

Links

BR323573A 1972-05-04 1973-05-04 Processo de cristalizacao de di-isocianatos em uma mistura de poli-isocianatos e as misturas de poli-isocianatos obtidas pelo dito processo BR7303235D0 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2084772A GB1423993A (en) 1972-05-04 1972-05-04 Process for the crystallisation of diphenylmethane diisocyanate from a crude undistilled polyisocyanate mixture

Publications (1)

Publication Number Publication Date
BR7303235D0 true BR7303235D0 (pt) 1974-07-18

Family

ID=10152731

Family Applications (1)

Application Number Title Priority Date Filing Date
BR323573A BR7303235D0 (pt) 1972-05-04 1973-05-04 Processo de cristalizacao de di-isocianatos em uma mistura de poli-isocianatos e as misturas de poli-isocianatos obtidas pelo dito processo

Country Status (9)

Country Link
JP (1) JPS4947355A (https=)
AR (1) AR195612A1 (https=)
BE (1) BE798934A (https=)
BR (1) BR7303235D0 (https=)
DE (1) DE2322574A1 (https=)
ES (1) ES414392A1 (https=)
FR (1) FR2183237B3 (https=)
GB (1) GB1423993A (https=)
NL (1) NL7306235A (https=)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5348285A (en) * 1976-10-14 1978-05-01 Citizen Watch Co Ltd Feed mechanism in system for controlling turning angle of spindle for lathe
JPS56146648A (en) * 1980-04-08 1981-11-14 Mitsubishi Heavy Ind Ltd Method of detecting speed of main shaft drive system of numerical-controlled machine tool
JPS57162047U (https=) * 1981-03-31 1982-10-12
US4360476A (en) 1981-12-24 1982-11-23 The Dow Chemical Company Method of concentrating a solution of methylene diphenyl diisocyanate in diphenyl oxide
JPS6090601A (ja) * 1983-10-20 1985-05-21 Seibu Denki Kogyo Kk 円形断面形状を有する被加工物の旋削加工方法及び装置
EP1475367B1 (de) 2003-05-08 2010-07-07 Bayer MaterialScience AG Verfahren zur Destillation eines Gemisches isomerer Diisocyanatodiphenylmethane
EP2337776B1 (en) * 2008-10-06 2016-03-30 Huntsman International LLC Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
CN112142623A (zh) * 2019-06-27 2020-12-29 万华化学（宁波）有限公司 一种低活性的mdi-50产品的制备方法及应用
CN112979500B (zh) * 2021-05-10 2024-06-18 中国科学院过程工程研究所 一种提纯苯二亚甲基二异氰酸酯的装置与方法

Also Published As

Publication number Publication date
JPS4947355A (https=) 1974-05-08
FR2183237B3 (https=) 1976-04-23
BE798934A (fr) 1973-10-30
FR2183237A1 (https=) 1973-12-14
GB1423993A (en) 1976-02-04
ES414392A1 (es) 1976-02-01
AR195612A1 (es) 1973-10-23
NL7306235A (https=) 1973-11-06
DE2322574A1 (de) 1973-11-22

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