IT1005241B - Procedimento per la produzione di poliuretani espansi - Google Patents

Procedimento per la produzione di poliuretani espansi

Info

Publication number
IT1005241B
IT1005241B IT83667/73A IT8366773A IT1005241B IT 1005241 B IT1005241 B IT 1005241B IT 83667/73 A IT83667/73 A IT 83667/73A IT 8366773 A IT8366773 A IT 8366773A IT 1005241 B IT1005241 B IT 1005241B
Authority
IT
Italy
Prior art keywords
polyurethans
expanded
procedure
production
expanded polyurethans
Prior art date
Application number
IT83667/73A
Other languages
English (en)
Inventor
M Pusey
Original Assignee
Dunlop 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 Dunlop Ltd filed Critical Dunlop Ltd
Application granted granted Critical
Publication of IT1005241B publication Critical patent/IT1005241B/it

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0033—Use of organic additives containing sulfur
    • 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
    • C08G18/092—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 oligomerisation to isocyanurate groups
    • 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
    • C08G18/22—Catalysts containing metal compounds
    • C08G18/225—Catalysts containing metal compounds of alkali or alkaline earth metals
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2379/00—Characterised by the use of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen, or carbon only, not provided for in groups C08J2361/00 - C08J2377/00
    • C08J2379/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
IT83667/73A 1972-12-06 1973-12-06 Procedimento per la produzione di poliuretani espansi IT1005241B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5631272A GB1425929A (en) 1972-12-06 1972-12-06 Polyurethane foams

Publications (1)

Publication Number Publication Date
IT1005241B true IT1005241B (it) 1976-08-20

Family

ID=10476318

Family Applications (1)

Application Number Title Priority Date Filing Date
IT83667/73A IT1005241B (it) 1972-12-06 1973-12-06 Procedimento per la produzione di poliuretani espansi

Country Status (8)

Country Link
US (1) US3892685A (it)
JP (1) JPS4999196A (it)
DE (1) DE2360941A1 (it)
FR (1) FR2209799B1 (it)
GB (1) GB1425929A (it)
IT (1) IT1005241B (it)
NL (1) NL7316660A (it)
ZA (1) ZA739059B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4107069A (en) * 1975-07-02 1978-08-15 M&T Chemicals Inc. Storage-stable precursors for rigid polyurethane foams
DE2607999C2 (de) * 1976-02-27 1983-02-03 Bayer Ag, 5090 Leverkusen Urethan- und Isocyanuratgruppen aufweisende Schaumstoffe und ein Verfahren zu ihrer Herstellung
US4124573A (en) * 1976-03-16 1978-11-07 Bridgestone Tire Co., Ltd. Soft polyurethane elastomer containing isocyanurate ring
US4204051A (en) * 1976-06-05 1980-05-20 Bayer Aktiengesellschaft Process for polyurethanes from ortho-ester-blocked polyols
US4521548A (en) * 1983-04-12 1985-06-04 The Dow Chemical Company Preparation of polyether polyols
DE590131T1 (de) * 1992-03-24 1994-12-22 Dow Chemical Co Neues endbehandlungsverfahren für hydroxyfunktionelle polythethern.
DE19928676A1 (de) * 1999-06-23 2000-12-28 Basf Ag Polyisocyanat-Polyadditionsprodukte
AU2001258290A1 (en) * 2000-03-17 2001-09-24 Shell International B.V. Formulation for making polyurethane foams
MX2023001870A (es) * 2020-08-14 2023-03-10 Huntsman Int Llc Aditivo para reducir la degradacion de una espuma de poliuretano.

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3067149A (en) * 1960-05-04 1962-12-04 Nopco Chem Co Stabilization of polyurethane resin foams
DE1215361B (de) * 1964-04-21 1966-04-28 Bayer Ag Verfahren zur Herstellung von homogenen oder zelligen Polyurethankunststoffen
DE1694142C3 (de) * 1967-03-25 1975-10-23 Bayer Ag, 5090 Leverkusen Verfahren zur Herstellung von Schaumstoffen
US3706687A (en) * 1968-01-18 1972-12-19 Henryk S Rudzki Urethane foam production and catalyst therefor comprising a mixture of an aliphatic tertiary amine compound and a tertiary amine salt of an alkylarylsulfonic acid
DE1770235A1 (de) * 1968-04-19 1971-10-07 Bayer Ag Isocyanuratgruppen aufweisende Schaumstoffe und Verfahren zu ihrer Herstellung
GB1339441A (en) * 1970-06-19 1973-12-05 Dunlop Holdings Ltd Polyurethane foams
DE2051304A1 (de) * 1970-10-20 1972-04-27 Bayer Verfahren zur Herstellung von Isocyanuratgruppen aufweisenden Schaum stoffen
GB1372562A (en) * 1971-09-22 1974-10-30 Dunlop Ltd Polyurethane foams
US3781235A (en) * 1972-10-31 1973-12-25 Gen Electric Method for making rigid foam and compositions using such method

Also Published As

Publication number Publication date
FR2209799B1 (it) 1978-06-23
DE2360941A1 (de) 1974-06-20
ZA739059B (en) 1974-10-30
AU6318973A (en) 1975-06-05
GB1425929A (en) 1976-02-25
NL7316660A (it) 1974-06-10
US3892685A (en) 1975-07-01
JPS4999196A (it) 1974-09-19
FR2209799A1 (it) 1974-07-05

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