GB934629A - Foamed materials - Google Patents

Foamed materials

Info

Publication number
GB934629A
GB934629A GB37816/59A GB3781659A GB934629A GB 934629 A GB934629 A GB 934629A GB 37816/59 A GB37816/59 A GB 37816/59A GB 3781659 A GB3781659 A GB 3781659A GB 934629 A GB934629 A GB 934629A
Authority
GB
United Kingdom
Prior art keywords
novolak
phenol
resorcinol
moles
formaldehyde
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
GB37816/59A
Inventor
Richard William Hall
Thomas Leighton Phillips
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.)
Distillers Co Yeast Ltd
Distillers Co Ltd
Original Assignee
Distillers Co Yeast Ltd
Distillers Co 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 Distillers Co Yeast Ltd, Distillers Co Ltd filed Critical Distillers Co Yeast Ltd
Priority to GB37816/59A priority Critical patent/GB934629A/en
Publication of GB934629A publication Critical patent/GB934629A/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
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/40—High-molecular-weight compounds
    • C08G18/54—Polycondensates of aldehydes
    • C08G18/546—Oxyalkylated polycondensates of aldehydes
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0025—Foam properties rigid
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/005—< 50kg/m3
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0041—Foam properties having specified density
    • C08G2110/0058—≥50 and <150kg/m3
    • 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
    • C08G2110/00—Foam properties
    • C08G2110/0083—Foam properties prepared using water as the sole blowing agent

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

A process for the production of a rigid polyurethane foam comprises reacting an alkoxylated novolak resin with a polyisocyanate and water in the presence of a polyurethane-forming catalyst. By an alkoxylated novolak resin is meant a novolak resin in which at least one phenolic group per molecule has been etherified by reaction with an a ,b -alkylene oxide. The novolak can be derived from such phenols as phenol itself, cresols, difunctional xylenols, resorcinol and diphenylol propane, and from formaldehyde, acetaldehyde and benzaldehyde. 1,2-Ethylene-, propylene- and butylene oxides are specified alkylene oxides. They may be reacted with the novolak or with the phenol before reaction with the aldehyde is effected. Catalysts for the foam formation include triethylamine and triethylene diamine. In examples (1) an ethoxylated novolak is prepared by reacting (with a hydrochloric acid catalyst) formaldehyde and an ethoxylated phenol (from phenol and 5,2 moles of ethylene oxide). Ethyl cellulose and wetting agent are then dissolved in heated novolak and, after cooling, foaming is effected by adding zinc naphthenate in white spirit, aqueous triethylene diamine and a commercial tolylene diisocyanate mixture. Sufficient heat is generated to cure the foam. (6) A similar process is carried out using a novolak obtained from an addition product of 7,7 moles of ethylene oxide with 1 mole of resorcinol. Specifications 758,249, 775,459, 909,777 and 909,842 are referred to.ALSO:A process for the production of a rigid polyurethane foam comprises reacting an alkoxylated novolak resin with a polyisocyanate and water in the presence of a polyurethaneforming catalyst. By an alkoxylated novolak resin is meant a novolak resin in which at least one phenolic group per molecule has been etherified by reaction with an a , b -alkylene oxide. The novolak can be derived form such phenols as phenol itself, cresols, difunctional xylenols, resorcinol and diphenylol propane, and from formaldehyde, acetaldehyde and benzaldehyde. 1, 2-Ethylene-, propylene- and butylene oxides are specified alkylene oxides. They may be reacted with the novolak or with the phenol before reaction with the aldehyde is effected. Catalysts for the foam formation include triethylamine and triethylene diamine. In examples (1) an ethoxylated novolak is prepared by reacting (with a hydrochloric acid catalyst) formaldehyde and an ethoxylated phenol (from phenol and 5,2 moles of ethylene oxide). Ethyl cellulose and wetting agent are then dissolved in the heated novolak and after cooling, foaming is effected by adding zinc naphthenate, white spirit, aqueous triethylene diamine and a commercial tolylene diisocyanate mixture. Sufficient heat is generated to cure the foam; (6) a similar process is carried out using a novolak obtained from an addition product of 7,7 moles of ethylene oxide with 1 mole of resorcinol. Specifications 758,249, 775,459, 909,777 and 909,842 are referred to.
GB37816/59A 1959-11-07 1959-11-07 Foamed materials Expired GB934629A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB37816/59A GB934629A (en) 1959-11-07 1959-11-07 Foamed materials

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB37816/59A GB934629A (en) 1959-11-07 1959-11-07 Foamed materials

Publications (1)

Publication Number Publication Date
GB934629A true GB934629A (en) 1963-08-21

Family

ID=10399203

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37816/59A Expired GB934629A (en) 1959-11-07 1959-11-07 Foamed materials

Country Status (1)

Country Link
GB (1) GB934629A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359865A1 (en) * 1976-07-30 1978-02-24 Texaco Development Corp UETHANE POLYISOCYANURATE RIGID FOAM
EP0397378A1 (en) * 1989-05-06 1990-11-14 MITSUI TOATSU CHEMICALS, Inc. Hydrochlorofluorocarbon blown rigid polyurethane foams and their preparation
EP0483431A1 (en) * 1990-11-02 1992-05-06 MITSUI TOATSU CHEMICALS, Inc. Polyol and utilization thereof
US5198475A (en) * 1990-10-31 1993-03-30 Mitsui Toatsu Chemicals, Inc. Polyol and utilization thereof
US10435503B2 (en) 2017-09-22 2019-10-08 Hexion Inc. Compositions for polyurethane applications
US10604614B2 (en) 2017-09-22 2020-03-31 Hexion Inc. Compositions and methods to produce alkoxylated triazine-arylhydroxy-aldehyde condensates
US10640475B2 (en) 2017-09-22 2020-05-05 Hexion Inc. Compositions and methods to produce alkoxylated triazine-arlhydroxy-aldehyde condensates
EP3819332A1 (en) * 2019-11-06 2021-05-12 Basf Se Process for producing rigid polyurethane foams
CN117965143A (en) * 2024-04-02 2024-05-03 中国石油大学(华东) Compression-resistant composite resin plugging agent and preparation method and application thereof

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359865A1 (en) * 1976-07-30 1978-02-24 Texaco Development Corp UETHANE POLYISOCYANURATE RIGID FOAM
EP0397378A1 (en) * 1989-05-06 1990-11-14 MITSUI TOATSU CHEMICALS, Inc. Hydrochlorofluorocarbon blown rigid polyurethane foams and their preparation
US5107068A (en) * 1989-05-06 1992-04-21 Mitsui Toatsu Chemicals, Inc. Polyurethane resin and utilization thereof
US5198475A (en) * 1990-10-31 1993-03-30 Mitsui Toatsu Chemicals, Inc. Polyol and utilization thereof
EP0483431A1 (en) * 1990-11-02 1992-05-06 MITSUI TOATSU CHEMICALS, Inc. Polyol and utilization thereof
US10435503B2 (en) 2017-09-22 2019-10-08 Hexion Inc. Compositions for polyurethane applications
US10604614B2 (en) 2017-09-22 2020-03-31 Hexion Inc. Compositions and methods to produce alkoxylated triazine-arylhydroxy-aldehyde condensates
US10640475B2 (en) 2017-09-22 2020-05-05 Hexion Inc. Compositions and methods to produce alkoxylated triazine-arlhydroxy-aldehyde condensates
US11028219B2 (en) 2017-09-22 2021-06-08 Hexion Inc. Compositions for polyurethane applications
EP3819332A1 (en) * 2019-11-06 2021-05-12 Basf Se Process for producing rigid polyurethane foams
CN117965143A (en) * 2024-04-02 2024-05-03 中国石油大学(华东) Compression-resistant composite resin plugging agent and preparation method and application thereof
CN117965143B (en) * 2024-04-02 2024-06-07 中国石油大学(华东) Compression-resistant composite resin plugging agent and preparation method and application thereof

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