GB1417087A - Polyisocyanates - Google Patents

Polyisocyanates

Info

Publication number
GB1417087A
GB1417087A GB2537073A GB2537073A GB1417087A GB 1417087 A GB1417087 A GB 1417087A GB 2537073 A GB2537073 A GB 2537073A GB 2537073 A GB2537073 A GB 2537073A GB 1417087 A GB1417087 A GB 1417087A
Authority
GB
United Kingdom
Prior art keywords
product
weight
methylene bridged
polyphenyl polyisocyanates
diphenylmethane diisocyanate
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
GB2537073A
Other languages
English (en)
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2537073A priority Critical patent/GB1417087A/en
Priority to IT2290574A priority patent/IT1012607B/it
Priority to NL7406894A priority patent/NL7406894A/xx
Priority to AR25388474A priority patent/AR202214A1/es
Priority to BE144742A priority patent/BE815525A/xx
Priority to BR430474A priority patent/BR7404304D0/pt
Priority to JP49060178A priority patent/JPS5826337B2/ja
Priority to DE19742425658 priority patent/DE2425658A1/de
Priority to FR7418421A priority patent/FR2231709B1/fr
Priority to ES426730A priority patent/ES426730A1/es
Publication of GB1417087A publication Critical patent/GB1417087A/en
Expired legal-status Critical Current

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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polyurethanes Or Polyureas (AREA)
GB2537073A 1973-05-29 1973-05-29 Polyisocyanates Expired GB1417087A (en)

Priority Applications (10)

Application Number Priority Date Filing Date Title
GB2537073A GB1417087A (en) 1973-05-29 1973-05-29 Polyisocyanates
IT2290574A IT1012607B (it) 1973-05-29 1974-05-17 Poliisocianati
NL7406894A NL7406894A (enrdf_load_stackoverflow) 1973-05-29 1974-05-22
AR25388474A AR202214A1 (es) 1973-05-29 1974-05-23 Procedimiento para la produccion de una multiplicidad de composiciones de isocianato a partir de una mezcla de polifenil poliisocianatos punteados con metileno y las composiciones asi obtenidas
BE144742A BE815525A (fr) 1973-05-29 1974-05-24 Polyisocyanates
BR430474A BR7404304D0 (pt) 1973-05-29 1974-05-27 Processo para a fabricacao de uma multiplicidade de composicoes de isocianato
JP49060178A JPS5826337B2 (ja) 1973-05-29 1974-05-28 イソシアネ−ト組成物の製法
DE19742425658 DE2425658A1 (de) 1973-05-29 1974-05-28 Polyisocyanate
FR7418421A FR2231709B1 (enrdf_load_stackoverflow) 1973-05-29 1974-05-28
ES426730A ES426730A1 (es) 1973-05-29 1974-05-29 Procedimiento para la produccion de una multiplicidad de composiciones de isocianato.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2537073A GB1417087A (en) 1973-05-29 1973-05-29 Polyisocyanates

Publications (1)

Publication Number Publication Date
GB1417087A true GB1417087A (en) 1975-12-10

Family

ID=10226582

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2537073A Expired GB1417087A (en) 1973-05-29 1973-05-29 Polyisocyanates

Country Status (10)

Country Link
JP (1) JPS5826337B2 (enrdf_load_stackoverflow)
AR (1) AR202214A1 (enrdf_load_stackoverflow)
BE (1) BE815525A (enrdf_load_stackoverflow)
BR (1) BR7404304D0 (enrdf_load_stackoverflow)
DE (1) DE2425658A1 (enrdf_load_stackoverflow)
ES (1) ES426730A1 (enrdf_load_stackoverflow)
FR (1) FR2231709B1 (enrdf_load_stackoverflow)
GB (1) GB1417087A (enrdf_load_stackoverflow)
IT (1) IT1012607B (enrdf_load_stackoverflow)
NL (1) NL7406894A (enrdf_load_stackoverflow)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031026A (en) * 1975-05-19 1977-06-21 Imperial Chemical Industries Limited Diphenylmethane diisocyanate compositions
US4237240A (en) 1979-04-09 1980-12-02 Basf Aktiengesellschaft Process for the manufacture of flexible polyurethane foams with high load-bearing and high energy-absorption capacity
US4258141A (en) 1978-04-11 1981-03-24 Basf Aktiengesellschaft Process for manufacture of flexible polyurethane foams with cyanic acid derivatives
US5300616A (en) * 1992-01-08 1994-04-05 Bayer Aktiengesellschaft Process for isolating polyisocyanate isomers from polyisocyanate mixtures
CN1045003C (zh) * 1990-10-23 1999-09-08 三井化学株式会社 亚甲基桥接的聚亚苯基聚异氰酸酯反应混合物的分馏方法
EP1518874A1 (de) * 2003-09-24 2005-03-30 Basf Aktiengesellschaft Monomerarmes Gemisch, enthaltend PMDI
SG122820A1 (en) * 2003-05-08 2006-06-29 Bayer Materialscience Ag Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes
WO2010040675A3 (en) * 2008-10-06 2010-06-24 Huntsman International Llc Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
CN111527066A (zh) * 2017-12-14 2020-08-11 苏尔寿管理有限公司 用于从粗混合物提纯异构单体诸如4,4’-亚甲基二苯基二异氰酸酯的设备和方法

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4055548A (en) * 1976-09-17 1977-10-25 The Upjohn Company Storage-stable liquid polyisocyanate composition
US4287132A (en) 1980-09-29 1981-09-01 Atlantic Richfield Company Preparation of polyisocyanates from polycarbamates
JP2660588B2 (ja) * 1989-11-30 1997-10-08 日本ポリウレタン工業株式会社 軟質ポリウレタン発泡体の製造方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2105193C3 (de) * 1971-02-04 1981-07-09 Chemie-Anlagenbau Bischofsheim GmbH, 4500 Osnabrück Verfahren zur Trennung eines organischen Polyisocyanatgemisches

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031026A (en) * 1975-05-19 1977-06-21 Imperial Chemical Industries Limited Diphenylmethane diisocyanate compositions
US4258141A (en) 1978-04-11 1981-03-24 Basf Aktiengesellschaft Process for manufacture of flexible polyurethane foams with cyanic acid derivatives
US4237240A (en) 1979-04-09 1980-12-02 Basf Aktiengesellschaft Process for the manufacture of flexible polyurethane foams with high load-bearing and high energy-absorption capacity
CN1045003C (zh) * 1990-10-23 1999-09-08 三井化学株式会社 亚甲基桥接的聚亚苯基聚异氰酸酯反应混合物的分馏方法
US5300616A (en) * 1992-01-08 1994-04-05 Bayer Aktiengesellschaft Process for isolating polyisocyanate isomers from polyisocyanate mixtures
SG122820A1 (en) * 2003-05-08 2006-06-29 Bayer Materialscience Ag Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes
US7649108B2 (en) 2003-05-08 2010-01-19 Bayer Materialscience Ag Process for the distillation of a mixture of isomeric diisocyanatodiphenylmethanes
EP1518874A1 (de) * 2003-09-24 2005-03-30 Basf Aktiengesellschaft Monomerarmes Gemisch, enthaltend PMDI
WO2010040675A3 (en) * 2008-10-06 2010-06-24 Huntsman International Llc Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
CN102171180A (zh) * 2008-10-06 2011-08-31 亨茨曼国际有限公司 同时生产二苯甲烷系列的二异氰酸酯异构体的不同混合物的方法
EP2423183A1 (en) * 2008-10-06 2012-02-29 Huntsman International LLC Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
AU2009301226B2 (en) * 2008-10-06 2013-08-22 Huntsman International Llc Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
RU2496771C2 (ru) * 2008-10-06 2013-10-27 Хантсмэн Интернэшнл Ллс Способ одновременного получения различных смесей изомеров диизоцианатов ряда дифенилметана
US8779182B2 (en) 2008-10-06 2014-07-15 Huntsman International Llc Process for the simultaneous production of different mixtures of diisocyanate isomers of the diphenylmethane series
CN111527066A (zh) * 2017-12-14 2020-08-11 苏尔寿管理有限公司 用于从粗混合物提纯异构单体诸如4,4’-亚甲基二苯基二异氰酸酯的设备和方法
US11613518B2 (en) 2017-12-14 2023-03-28 Sulzer Management Ag Plant and method for purifying an isomeric monomer

Also Published As

Publication number Publication date
BR7404304D0 (pt) 1975-09-30
AR202214A1 (es) 1975-05-23
IT1012607B (it) 1977-03-10
JPS5826337B2 (ja) 1983-06-02
BE815525A (fr) 1974-11-25
JPS5035142A (enrdf_load_stackoverflow) 1975-04-03
DE2425658A1 (de) 1974-12-19
FR2231709A1 (enrdf_load_stackoverflow) 1974-12-27
FR2231709B1 (enrdf_load_stackoverflow) 1978-01-20
ES426730A1 (es) 1976-07-01
NL7406894A (enrdf_load_stackoverflow) 1974-12-03

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee