FR1398419A - Procédé de préparation de mélanges polyisocyanates organiques possédant une clarté optique améliorée - Google Patents

Procédé de préparation de mélanges polyisocyanates organiques possédant une clarté optique améliorée

Info

Publication number: FR1398419A
Authority: FR; France
Prior art keywords: preparation; organic polyisocyanate; improved optical; optical clarity; polyisocyanate mixtures
Prior art date: 1963-06-13
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

FR977857A

Other languages

English (en)

Inventor

Eugene L Powers

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.)

Bayer Corp

Original Assignee

Mobay Corp

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.)

1963-06-13

Filing date

1964-06-11

Publication date

1965-05-07

1964-06-11 Application filed by Mobay Corp filed Critical Mobay Corp

1965-05-07 Application granted granted Critical

1965-05-07 Publication of FR1398419A publication Critical patent/FR1398419A/fr

Status Expired legal-status Critical Current

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
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C263/00—Preparation of derivatives of isocyanic acid
- C07C263/10—Preparation of derivatives of isocyanic acid by reaction of amines with carbonyl halides, e.g. with phosgene

Landscapes

Chemical & Material Sciences (AREA)
Organic Chemistry (AREA)
Chemical Kinetics & Catalysis (AREA)
Health & Medical Sciences (AREA)
Medicinal Chemistry (AREA)
Polymers & Plastics (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

FR977857A 1963-06-13 1964-06-11 Procédé de préparation de mélanges polyisocyanates organiques possédant une clarté optique améliorée Expired FR1398419A (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US287523A US3277139A (en)	1963-06-13	1963-06-13	Process for preparing organic polyisocyanates

Publications (1)

Publication Number	Publication Date
FR1398419A true FR1398419A (fr)	1965-05-07

Family

ID=23103282

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR977857A Expired FR1398419A (fr)	1963-06-13	1964-06-11	Procédé de préparation de mélanges polyisocyanates organiques possédant une clarté optique améliorée

Country Status (4)

Country	Link
US (1)	US3277139A (fr)
DE (1)	DE1243675B (fr)
FR (1)	FR1398419A (fr)
GB (1)	GB1061465A (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3488374A (en) *	1965-10-04	1970-01-06	Olin Mathieson	Preparation of polyisocyanate compositions
US3670024A (en) *	1969-06-24	1972-06-13	Bayer Ag	Process for the production of 4,4{40 -diaminodiaryl alkanes
US3954867A (en) *	1969-10-20	1976-05-04	Funk Jr Bernard D	Continuous process for preparing methylene dianilines
US5312971A (en) *	1992-07-23	1994-05-17	Miles Inc.	Color reduction of polymethylene polyphenyl polyisocyanates
US5942151A (en) *	1997-11-20	1999-08-24	Bayer Corporation	Polymeric MDI color

1963
- 1963-06-13 US US287523A patent/US3277139A/en not_active Expired - Lifetime
1964
- 1964-06-11 FR FR977857A patent/FR1398419A/fr not_active Expired
- 1964-06-12 GB GB24567/64A patent/GB1061465A/en not_active Expired
- 1964-06-13 DE DEM61355A patent/DE1243675B/de active Pending

Also Published As

Publication number	Publication date
US3277139A (en)	1966-10-04
DE1243675B (de)	1967-07-06
GB1061465A (en)	1967-03-15

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