GB1137658A – Conversion of isocyanates to carbodiimides
– Google Patents
GB1137658A – Conversion of isocyanates to carbodiimides
– Google Patents
Conversion of isocyanates to carbodiimides
Info
Publication number
GB1137658A
GB1137658A
GB29368/67A
GB2936867A
GB1137658A
GB 1137658 A
GB1137658 A
GB 1137658A
GB 29368/67 A
GB29368/67 A
GB 29368/67A
GB 2936867 A
GB2936867 A
GB 2936867A
GB 1137658 A
GB1137658 A
GB 1137658A
Authority
GB
United Kingdom
Prior art keywords
isocyanates
isocyanate
carbodiimides
aryl
conversion
Prior art date
1966-08-05
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
GB29368/67A
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.)
Pharmacia and Upjohn Co
Original Assignee
Upjohn Co
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.)
1966-08-05
Filing date
1967-06-26
Publication date
1968-12-27
1967-06-26
Application filed by Upjohn Co
filed
Critical
Upjohn Co
1968-12-27
Publication of GB1137658A
publication
Critical
patent/GB1137658A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
C07F9/00—Compounds containing elements of Groups 5 or 15 of the Periodic System
C07F9/66—Arsenic compounds
C07F9/70—Organo-arsenic compounds
C07F9/74—Aromatic compounds
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
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
C08G18/02—Polymeric products of isocyanates or isothiocyanates of isocyanates or isothiocyanates only
Abstract
1,137,658. Conversion of isocyanates to carbodiimides. UPJOHN CO. 26 June, 1967 [5 Aug., 1966], No. 29368/67. Heading C2C. A process for the conversion to the corresponding carbodiimide of an organic isocyanate selected from secondary alkyl isocyanates, primary alkyl isocyanates containing more than 10 carbons in the alkyl moiety, cycloalkyl isocyanates, aryl isocyanates, and substituted aryl isocyanates provided that at least one of the positions ortho to the isocyanato group in the aryl nucleus is unsubstituted and that the substituents do not contain reactive hydrogen atoms, comprises heating said organic isocyanate at 80-250 C. in the presence of a catalytic amount of triarylarsine wherein the aryl groups are free from substituents containing reactive hydrogen atoms. The catalyst, which is employed in an amount of less than one mole per mole of isocyanate. may be added prior to heating or after the isocyanate has been heated to the requisite temperature and an inert solvent may be present. The isocyanate starting material used may be a mixture of isocyanates in which case unsymmetrical carbodiimides are obtained, or it may be a polyisocyanate in which case polycarbodiimides are obtained. The process may be operated batchwise or semicontinuously.
GB29368/67A
1966-08-05
1967-06-26
Conversion of isocyanates to carbodiimides
Expired
GB1137658A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US570420A
US3406198A
(en)
1966-08-05
1966-08-05
Triarylarsines as catalysts for converting isocyanates to carbodiimides
Publications (1)
Publication Number
Publication Date
GB1137658A
true
GB1137658A
(en)
1968-12-27
Family
ID=24279578
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB29368/67A
Expired
GB1137658A
(en)
1966-08-05
1967-06-26
Conversion of isocyanates to carbodiimides
Country Status (2)
Country
Link
US
(1)
US3406198A
(en)
GB
(1)
GB1137658A
(en)
Families Citing this family (15)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB1567713A
(en)
*
1977-01-31
1980-05-21
Upjohn Co
Process for preparing carbodiimide-containing polyisocyanates
US5352400A
(en)
*
1992-04-29
1994-10-04
E. I. Du Pont De Nemours And Company
Carbodiimides and processes therefor
US9714378B2
(en)
2008-10-29
2017-07-25
Basf Se
Proppant
US9719011B2
(en)
2008-10-29
2017-08-01
Basf Se
Proppant
WO2012104190A1
(en)
2011-01-31
2012-08-09
Basf Se
A proppant
US8778456B2
(en)
2011-08-30
2014-07-15
Basf Se
Coating composition including high molecular weight polycarbodiimide, method of preparing same, and method of preparing coating on a substrate
PT2751154T
(en)
2011-08-30
2019-11-04
Basf Se
High molecular weight polycarbodiimide and method of producing same
EP2660259A1
(en)
*
2012-05-03
2013-11-06
Rhein Chemie Rheinau GmbH
New compositions containing carbodiimide, method for their production and use
KR102333130B1
(en)
2014-02-14
2021-12-01
바스프 에스이
Method of preparing a polycarbodiimide polymer and polycarbodiimide polymer prepared thereby
US20170058074A1
(en)
2014-02-20
2017-03-02
Basf Se
Post-modified polycarbodiimides
JP2018510232A
(en)
2015-02-03
2018-04-12
ビーエーエスエフ ソシエタス・ヨーロピアＢａｓｆ Ｓｅ
Solvent-based system for forming n-acyl urea coatings
WO2016187282A2
(en)
2015-05-18
2016-11-24
Basf Se
Methods for treating paperboard s and paper media, and associated treated paperboards and paper media
CN108137951B
(en)
2015-07-31
2020-10-20
巴斯夫欧洲公司
Pigmented primer composition for forming N-acylurea coatings
KR102575107B1
(en)
2017-02-06
2023-09-07
바스프 에스이
Aqueous systems for forming coatings on substrates
JP2022519285A
(en)
*
2019-02-07
2022-03-22
ダウ グローバル テクノロジーズ エルエルシー
Phenyl isocyanate conversion process
Family Cites Families (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3157662A
(en)
*
1961-11-28
1964-11-17
Du Pont
Catalysts for preparing carbodiimides
1966
1966-08-05
US
US570420A
patent/US3406198A/en
not_active
Expired – Lifetime
1967
1967-06-26
GB
GB29368/67A
patent/GB1137658A/en
not_active
Expired
Also Published As
Publication number
Publication date
US3406198A
(en)
1968-10-15
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