IT988642B - Processo per la preparazione di espansi poliuretanici - Google Patents

Processo per la preparazione di espansi poliuretanici

Info

Publication number
IT988642B
IT988642B IT2356873A IT2356873A IT988642B IT 988642 B IT988642 B IT 988642B IT 2356873 A IT2356873 A IT 2356873A IT 2356873 A IT2356873 A IT 2356873A IT 988642 B IT988642 B IT 988642B
Authority
IT
Italy
Prior art keywords
preparation
polyurethane foams
foams
polyurethane
Prior art date
Application number
IT2356873A
Other languages
English (en)
Original Assignee
Shell Int Research
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 Shell Int Research filed Critical Shell Int Research
Application granted granted Critical
Publication of IT988642B publication Critical patent/IT988642B/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
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot 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
    • C08G65/00—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule
    • C08G65/02—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring
    • C08G65/26—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds
    • C08G65/2642—Macromolecular compounds obtained by reactions forming an ether link in the main chain of the macromolecule from cyclic ethers by opening of the heterocyclic ring from cyclic ethers and other compounds characterised by the catalyst used
    • C08G65/2669—Non-metals or compounds thereof
    • C08G65/2672—Nitrogen or compounds thereof
    • 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
    • C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
    • C08J2375/04—Polyurethanes
    • C08J2375/08—Polyurethanes from polyethers
IT2356873A 1972-05-02 1973-04-30 Processo per la preparazione di espansi poliuretanici IT988642B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2035772 1972-05-02

Publications (1)

Publication Number Publication Date
IT988642B true IT988642B (it) 1975-04-30

Family

ID=10144610

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2356873A IT988642B (it) 1972-05-02 1973-04-30 Processo per la preparazione di espansi poliuretanici

Country Status (11)

Country Link
JP (1) JPS56446B2 (it)
AT (1) AT331034B (it)
AU (1) AU469254B2 (it)
BE (1) BE798926A (it)
BR (1) BR7303135D0 (it)
CH (1) CH592122A5 (it)
DE (1) DE2321884A1 (it)
ES (1) ES414240A1 (it)
FR (1) FR2183072A1 (it)
IT (1) IT988642B (it)
NL (1) NL7306021A (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2815540A1 (de) * 1978-04-11 1979-10-25 Basf Ag Polyurethan-weichschaumstoffe mit hoher trag- und stossabsorptionsfaehigkeit
CA1189249A (en) * 1981-07-09 1985-06-18 Bernhard Liessem Foam manufacture
CA3219881A1 (en) 2011-04-15 2012-10-18 Fisher & Paykel Healthcare Limited Interface comprising a rolling nasal bridge portion
US10603456B2 (en) 2011-04-15 2020-03-31 Fisher & Paykel Healthcare Limited Interface comprising a nasal sealing portion
EP4279106A3 (en) 2012-09-04 2024-01-17 Fisher & Paykel Healthcare Limited Valsalva mask
EP3185944A4 (en) 2014-08-25 2018-04-04 Fisher&Paykel Healthcare Limited Respiratory mask and related portions, components or sub-assemblies

Also Published As

Publication number Publication date
ATA382373A (de) 1975-10-15
AU5498673A (en) 1974-10-31
AU469254B2 (en) 1976-02-05
JPS4947495A (it) 1974-05-08
JPS56446B2 (it) 1981-01-08
ES414240A1 (es) 1976-01-16
BE798926A (fr) 1973-10-30
DE2321884A1 (de) 1973-11-15
AT331034B (de) 1976-07-26
NL7306021A (it) 1973-11-06
FR2183072A1 (en) 1973-12-14
BR7303135D0 (pt) 1974-07-18
CH592122A5 (it) 1977-10-14

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