GB990637A - Manufacturing polyurethanes - Google Patents

Manufacturing polyurethanes

Info

Publication number
GB990637A
GB990637A GB3891661A GB3891661A GB990637A GB 990637 A GB990637 A GB 990637A GB 3891661 A GB3891661 A GB 3891661A GB 3891661 A GB3891661 A GB 3891661A GB 990637 A GB990637 A GB 990637A
Authority
GB
United Kingdom
Prior art keywords
isocyanate
tolylene
isocyanates
tri
dimethyl
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
GB3891661A
Inventor
Harry James Twitchett
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
Priority to BE624376D priority Critical patent/BE624376A/xx
Priority to NL284895D priority patent/NL284895A/xx
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB3891661A priority patent/GB990637A/en
Priority to DEJ22585A priority patent/DE1170629B/en
Priority to DK470662A priority patent/DK103965C/en
Priority to FR914122A priority patent/FR1347094A/en
Publication of GB990637A publication Critical patent/GB990637A/en
Expired legal-status Critical Current

Links

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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
    • 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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/161—Catalysts containing two or more components to be covered by at least two of the groups C08G18/166, C08G18/18 or C08G18/22
    • 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
    • C08G18/08—Processes
    • C08G18/16—Catalysts
    • C08G18/18—Catalysts containing secondary or tertiary amines or salts thereof
    • C08G18/1816—Catalysts containing secondary or tertiary amines or salts thereof having carbocyclic groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

Polyurethanes are prepared by reacting hydroxyl group-containing polymers with organic polyisocyanates in the presence of a catalyst comprising a tertiary amine of the formula <FORM:0990637/C3/1> in which R is a radical of the formula <FORM:0990637/C3/2> or <FORM:0990637/C3/3> and the substituents R1 which may be the same or different are hydrogen, methyl or ethyl. The tertiary amines of the above formula specified are N,N - dimethyl - 2 - phenylethylamine, N,N - dimethyl - 2 - p - tolylethylamine and N,N - dimethyl - 2 - cyclohexylethylamine and mixtures thereof. The hydroxyl group containing polymers may be polyethers, polyesters and polyesteramides or mixtures thereof and many starting materials for the preparation of such polymers are specified. Polyisocyanates specified are hexamethylene di-isocyanate, 2,4-tolylene and 2,6-tolylene di-isocyanates, di-phenyl -methane-4,41-di-isocyanate, m- and p-phenylene di-isocyanates, chlorophenylene-2,4-di-isocyanate, dicyclohexylmethane di-isocyanate, 2,4,6 - tri - isocyanatotoluene, 2,4,41-tri -isocyanatodiphenyl ether and polymers of tolylene-2,4 and -2,6-di-isocyanates. Mixtures of polyisocyanates may also be used, e.g. the phosgenated mixed polyamine reaction products of formaldehyde and aromatic amines such as aniline and o-toluidine. Other ingredients which may be present include catalysts, e.g. dimethylcyclohexylamine, triethylamine, dimethylbenzylamine, N - methylmorpholine, tetramethylguanidine, triethylenediamine, 4-dimethylaminopyridine, potassium carbonate, potassium acetate, potassium naphthenate, basic lead acetate, lead carboxylates, zinc or lead dialkyldithiophosphates, transition metal acetylacetonates, di - n - butyltin dilaurate and stannous octoate; nonionic surface-active agents, salts of sulphuric acid derivatives of high molecular weight organic compounds, silicone oils such as alkyland aryl-polysiloxanes and copolymers thereof with alkylene oxides; foam stabilizing agents such as ethyl cellulose; low molecular weight polyols such as trimethylolpropane; colouring matters; plasticizers such as dialkyl phthalates; fireproofing agents such as tri-b -chloroethyl phosphate and antimony compounds; and blowing agents such as volatile fluoroalkanes and water. Examples are given of the production of polyurethane foams by the process of the invention. Specifications 990,631 and 990,632 are referred to.
GB3891661A 1961-10-31 1961-10-31 Manufacturing polyurethanes Expired GB990637A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
BE624376D BE624376A (en) 1961-10-31
NL284895D NL284895A (en) 1961-10-31
GB3891661A GB990637A (en) 1961-10-31 1961-10-31 Manufacturing polyurethanes
DEJ22585A DE1170629B (en) 1961-10-31 1962-10-31 Process for the, optionally one-step, production of polyurethanes
DK470662A DK103965C (en) 1961-10-31 1962-10-31 Process for the production of foamed polyurethane materials.
FR914122A FR1347094A (en) 1961-10-31 1962-10-31 Process for manufacturing polymeric materials, in particular polyurethanes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3891661A GB990637A (en) 1961-10-31 1961-10-31 Manufacturing polyurethanes

Publications (1)

Publication Number Publication Date
GB990637A true GB990637A (en) 1965-04-28

Family

ID=10406474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3891661A Expired GB990637A (en) 1961-10-31 1961-10-31 Manufacturing polyurethanes

Country Status (5)

Country Link
BE (1) BE624376A (en)
DE (1) DE1170629B (en)
DK (1) DK103965C (en)
GB (1) GB990637A (en)
NL (1) NL284895A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013019488A1 (en) * 2011-07-29 2013-02-07 Air Products And Chemicals, Inc. Reduced emissions low density spray polyurethane foam

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU30999A1 (en) * 1951-02-23
BE542119A (en) * 1954-10-22

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013019488A1 (en) * 2011-07-29 2013-02-07 Air Products And Chemicals, Inc. Reduced emissions low density spray polyurethane foam
RU2572626C2 (en) * 2011-07-29 2016-01-20 Эр Продактс Энд Кемикалз, Инк. Foam polyurethane composition, method of producing foam polyurethane and catalyst composition used therefor
US10106638B2 (en) 2011-07-29 2018-10-23 Evonik Degussa Gmbh Reduced emissions low density spray polyurethane foam

Also Published As

Publication number Publication date
DE1170629B (en) 1964-05-21
NL284895A (en)
DK103965C (en) 1966-03-14
BE624376A (en)

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