GB1417075A - Isocyanates - Google Patents

Isocyanates

Info

Publication number
GB1417075A
GB1417075A GB5060373A GB5060373A GB1417075A GB 1417075 A GB1417075 A GB 1417075A GB 5060373 A GB5060373 A GB 5060373A GB 5060373 A GB5060373 A GB 5060373A GB 1417075 A GB1417075 A GB 1417075A
Authority
GB
United Kingdom
Prior art keywords
isocyanates
molecular sieve
aromatic
organic
aliphatic
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
GB5060373A
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 GB5060373A priority Critical patent/GB1417075A/en
Publication of GB1417075A publication Critical patent/GB1417075A/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1417075 Treatment of organic isocyanates IMPERIAL CHEMICAL INDUSTRIES Ltd 27 Sept 1974 [31 Oct 1973] 50603/73 Heading C2C Coloured impurities in organic isocyanates and discoloration on storage of said isocyanates are reduced by treating the isocyanates in the liquid state with a molecular sieve. The molecular sieve is preferably in pelleted form. The isocyanates may be aliphatic, aromatic, cycloaliphatic and mixed aromatic/aliphatic mono- and poly-isocyanates.
GB5060373A 1973-10-31 1973-10-31 Isocyanates Expired GB1417075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5060373A GB1417075A (en) 1973-10-31 1973-10-31 Isocyanates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5060373A GB1417075A (en) 1973-10-31 1973-10-31 Isocyanates

Publications (1)

Publication Number Publication Date
GB1417075A true GB1417075A (en) 1975-12-10

Family

ID=10456588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5060373A Expired GB1417075A (en) 1973-10-31 1973-10-31 Isocyanates

Country Status (1)

Country Link
GB (1) GB1417075A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061662A (en) * 1975-08-28 1977-12-06 W. R. Grace & Co. Removal of unreacted tolylene diisocyanate from urethane prepolymers
US4661627A (en) * 1986-08-19 1987-04-28 The Dow Chemical Company Method for scavenging acidic impurities from polymeric isocyanates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4061662A (en) * 1975-08-28 1977-12-06 W. R. Grace & Co. Removal of unreacted tolylene diisocyanate from urethane prepolymers
US4661627A (en) * 1986-08-19 1987-04-28 The Dow Chemical Company Method for scavenging acidic impurities from polymeric isocyanates

Similar Documents

Publication Publication Date Title
AU473592B2 (en) Improvements in sealing washers and fastener sealing washer assemblies
DE2960051D1 (en) Process for the preparation of organic polyisocyanates containing biuret and/or urea groups, as well as dispersions of polyisocyanates containing urea groups in a diisocyanate free of urea
ES421138A1 (en) Process for the production of colored polyurethane foams
DE3680413D1 (en) USE OF POLYISOCYANATE PREPARATIONS CONTAINING UREA AND / OR BIURET GROUPS AS ISOCYANATE COMPONENTS IN THE PRODUCTION OF PLASTICS BY THE ISOCYANATE POLYADDITIONAL PROCESS.
GB1449283A (en) Manufacture of non-dusting or virtually non-dusting dye granules
ZA863410B (en) A process for the production of polyisocyanate preparations containing urea and/or biuret groups.the polyisocyanate preparations obtainable by this process and their use as isocyanate component in the production of plastics by the isocyanate-polyaddition process
GB1448485A (en) Dyeing process
GB1417075A (en) Isocyanates
GB1382659A (en) Flame retardant polyamide compositions
GB1191808A (en) Preparation of Streptozotocin
GB1196008A (en) A Process for the Continuous Preparation of Aromatic Mono- and Diisocyanates.
GB1448311A (en) Process for preparing hexahydrothieno-3,4-d-imidazole-2,4- diones
GB1225622A (en)
GB1409941A (en) Colouration of polyesters
GB1379853A (en) Polyethylenes and a process for the production of the same
GB1238725A (en)
IE38557B1 (en) Process for the preparation of 1-nitroanthraquinone which is practically free of 1-5-dinitroanthraquinone
GB1433114A (en) Method of conditioning phthalocyanine pigments and product thereof
GB1409503A (en) Process for preparing amino-anthraquinones
GB1379806A (en) Preparation of thioformamide
GB1413224A (en) Purifying 1,4-dicyanobutenes
GB1433845A (en) Phar
GB1253957A (en) Purification of laurolactam
USD218098S (en) Spelling teaching machine
Georgieva Structural Peculiarities of the Martensite Produced Under High-Pressure Conditions and in Pulsating Magnetic Fields

Legal Events

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