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FR2381795A1 - Non-brittle, heat-formable hard polyisocyanurate foam - obtd. from diisocyanato diphenyl methane, polyether and glycol (BE 22.8.77) - Google Patents

Non-brittle, heat-formable hard polyisocyanurate foam - obtd. from diisocyanato diphenyl methane, polyether and glycol (BE 22.8.77)

Info

Publication number
FR2381795A1
FR2381795A1 FR7705458A FR7705458A FR2381795A1 FR 2381795 A1 FR2381795 A1 FR 2381795A1 FR 7705458 A FR7705458 A FR 7705458A FR 7705458 A FR7705458 A FR 7705458A FR 2381795 A1 FR2381795 A1 FR 2381795A1
Authority
FR
France
Prior art keywords
brittle
polyether
glycol
diphenyl methane
components
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.)
Granted
Application number
FR7705458A
Other languages
French (fr)
Other versions
FR2381795B1 (en
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 AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Priority to FR7705458A priority Critical patent/FR2381795A1/en
Publication of FR2381795A1 publication Critical patent/FR2381795A1/en
Application granted granted Critical
Publication of FR2381795B1 publication Critical patent/FR2381795B1/fr
Granted 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
    • C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
    • C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
    • C08G18/6666—Compounds of group C08G18/48 or C08G18/52
    • C08G18/667—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38
    • C08G18/6674—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/32 or polyamines of C08G18/38 with compounds of group C08G18/3203
    • 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
    • C08G18/09—Processes comprising oligomerisation of isocyanates or isothiocyanates involving reaction of a part of the isocyanate or isothiocyanate groups with each other in the reaction mixture
    • 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

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

Prepn. of polyisocyanurate rigid foams by reaction of (A) a polymethylene polyphenyl polyisocyanate contg. >=80 wt. % diisocyanato diphenyl methane with (B) a polyol mixt of (a) a polyether with OH value 28-112 and >=20 (30-50) wt. % of the alkylene oxide content consisting of ethylene oxide gps. and (b) a glycol of mol. wt. 62-200, in presence of usual isocyanate trimerisation catalyst, blowing agent and other usual additives. Amt. of (a) is 0.015-0.04 OH equivs. and of (b) 0.2-0.4 OH equivs., per NCO equiv. Used to make internal cover and impact-absorbing components of vehicles, tractors, cranes, etc., sound-absorbing roof and wall elements in building and for enclosing machines; thermal insulation for vessels, pipes, houses, etc; protective packaging of fragile equipment; furniture components, e.g. seat sheels, table tops, etc; orthopaedic aids, e.t. splints, protective pads; shoe components, e.g. inner soles. The foam is non-brittle and can be hot-formed at 150-210 degrees C, or embossed in sharp contours, undergoing large thickness reductions without damage.
FR7705458A 1977-02-24 1977-02-24 Non-brittle, heat-formable hard polyisocyanurate foam - obtd. from diisocyanato diphenyl methane, polyether and glycol (BE 22.8.77) Granted FR2381795A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7705458A FR2381795A1 (en) 1977-02-24 1977-02-24 Non-brittle, heat-formable hard polyisocyanurate foam - obtd. from diisocyanato diphenyl methane, polyether and glycol (BE 22.8.77)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7705458A FR2381795A1 (en) 1977-02-24 1977-02-24 Non-brittle, heat-formable hard polyisocyanurate foam - obtd. from diisocyanato diphenyl methane, polyether and glycol (BE 22.8.77)

Publications (2)

Publication Number Publication Date
FR2381795A1 true FR2381795A1 (en) 1978-09-22
FR2381795B1 FR2381795B1 (en) 1983-12-09

Family

ID=9187198

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7705458A Granted FR2381795A1 (en) 1977-02-24 1977-02-24 Non-brittle, heat-formable hard polyisocyanurate foam - obtd. from diisocyanato diphenyl methane, polyether and glycol (BE 22.8.77)

Country Status (1)

Country Link
FR (1) FR2381795A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1233854A (en) * 1958-08-15 1960-10-12 Ici Ltd Improvements in the production of foamed polyurethanes
FR2193052A1 (en) * 1972-07-18 1974-02-15 Upjohn Co
FR2271026A1 (en) * 1974-01-02 1975-12-12 Inter Polymer Res Corp Polyurethane foams with solid skin - from polyether polyol, second active H compound polyisocyanate, two catalysts and blowing agent

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1233854A (en) * 1958-08-15 1960-10-12 Ici Ltd Improvements in the production of foamed polyurethanes
FR2193052A1 (en) * 1972-07-18 1974-02-15 Upjohn Co
FR2271026A1 (en) * 1974-01-02 1975-12-12 Inter Polymer Res Corp Polyurethane foams with solid skin - from polyether polyol, second active H compound polyisocyanate, two catalysts and blowing agent

Also Published As

Publication number Publication date
FR2381795B1 (en) 1983-12-09

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Legal Events

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