IT1255357B - Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densita' e schiume cosi' ottenute - Google Patents

Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densita' e schiume cosi' ottenute

Info

Publication number
IT1255357B
IT1255357B ITMI921782A ITMI921782A IT1255357B IT 1255357 B IT1255357 B IT 1255357B IT MI921782 A ITMI921782 A IT MI921782A IT MI921782 A ITMI921782 A IT MI921782A IT 1255357 B IT1255357 B IT 1255357B
Authority
IT
Italy
Prior art keywords
foams
preparation
low density
procedure
flexible polyurethane
Prior art date
Application number
ITMI921782A
Other languages
English (en)
Inventor
Dario Stefani
Original Assignee
Enichem Polimeri
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 Enichem Polimeri filed Critical Enichem Polimeri
Publication of ITMI921782A0 publication Critical patent/ITMI921782A0/it
Priority to ITMI921782A priority Critical patent/IT1255357B/it
Priority to DE69317021T priority patent/DE69317021T2/de
Priority to EP93202042A priority patent/EP0582328B1/en
Priority to AT93202042T priority patent/ATE163301T1/de
Priority to ES93202042T priority patent/ES2112957T3/es
Priority to DK93202042T priority patent/DK0582328T3/da
Priority to US08/095,723 priority patent/US5340845A/en
Publication of ITMI921782A1 publication Critical patent/ITMI921782A1/it
Application granted granted Critical
Publication of IT1255357B publication Critical patent/IT1255357B/it
Priority to GR980400576T priority patent/GR3026380T3/el

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
    • C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
    • C08J9/06—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent
    • C08J9/08—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent by a chemical blowing agent developing carbon dioxide
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densità ottenute, in assenza di agenti espandenti di natura cloro-fluoro alcanica, dalla policondensazione di un poliisocianato organico con almeno un poliolo avente peso equivalente superiore a 50 e funzionalità uguale o superiore a 2 ed in presenza di un sistema espandente che comprende acqua e dimetil carbonato (DMC).
ITMI921782A 1992-07-23 1992-07-23 Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densita' e schiume cosi' ottenute IT1255357B (it)

Priority Applications (8)

Application Number Priority Date Filing Date Title
ITMI921782A IT1255357B (it) 1992-07-23 1992-07-23 Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densita' e schiume cosi' ottenute
ES93202042T ES2112957T3 (es) 1992-07-23 1993-07-10 Procedimiento para la preparacion de espumas poliuretanicas flexibles de baja densidad y las espumas poliuretanicas obtenidas.
EP93202042A EP0582328B1 (en) 1992-07-23 1993-07-10 Process for preparing low-density flexible polyurethane foams, and the polyurethane foams obtained
AT93202042T ATE163301T1 (de) 1992-07-23 1993-07-10 Verfahren zur herstellung von polyurethan- weichschaumstoffen mit niedriger dichte und so erhaltene polyurethan-weichschaumstoffe
DE69317021T DE69317021T2 (de) 1992-07-23 1993-07-10 Verfahren zur Herstellung von Polyurethan-Weichschaumstoffen mit niedriger Dichte und so erhaltene Polyurethan-Weichschaumstoffe
DK93202042T DK0582328T3 (da) 1992-07-23 1993-07-10 Fremgangsmåde til fremstilling af fleksibelt polyurethanskum med lav densitet, samt det opnåede polyurethanskum
US08/095,723 US5340845A (en) 1992-07-23 1993-07-21 Process for preparing low-density flexible polyurethane foams, and the polyurethane foams obtained
GR980400576T GR3026380T3 (en) 1992-07-23 1998-03-17 Process for preparing low-density flexible polyurethane foams, and the polyurethane foams obtained.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITMI921782A IT1255357B (it) 1992-07-23 1992-07-23 Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densita' e schiume cosi' ottenute

Publications (3)

Publication Number Publication Date
ITMI921782A0 ITMI921782A0 (it) 1992-07-23
ITMI921782A1 ITMI921782A1 (it) 1994-01-23
IT1255357B true IT1255357B (it) 1995-10-31

Family

ID=11363719

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI921782A IT1255357B (it) 1992-07-23 1992-07-23 Procedimento per la preparazione di schiume poliuretaniche flessibili a bassa densita' e schiume cosi' ottenute

Country Status (8)

Country Link
US (1) US5340845A (it)
EP (1) EP0582328B1 (it)
AT (1) ATE163301T1 (it)
DE (1) DE69317021T2 (it)
DK (1) DK0582328T3 (it)
ES (1) ES2112957T3 (it)
GR (1) GR3026380T3 (it)
IT (1) IT1255357B (it)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2848584B2 (ja) 1994-06-23 1999-01-20 日本製紙株式会社 水性樹脂組成物、その製造方法及び用途
IT1315242B1 (it) * 1999-10-12 2003-02-03 Enichem Spa Procedimento per la preparazione di schiume poliuretaniche flessibilia bassa densita'.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4568702A (en) * 1985-04-15 1986-02-04 Atlantic Richfield Company Method for the preparation of semi-rigid polyurethane modified polyurea foam compositions
IT1229756B (it) * 1989-05-17 1991-09-10 Montedipe Spa Schiume poliuretaniche flessibili e procedimento per la loro preparazione
US5140052A (en) * 1989-05-18 1992-08-18 Akzo N.V. Hydrolyzed dialkyl dicarbonates as blowing agents for polymers

Also Published As

Publication number Publication date
ITMI921782A0 (it) 1992-07-23
ES2112957T3 (es) 1998-04-16
EP0582328B1 (en) 1998-02-18
ITMI921782A1 (it) 1994-01-23
EP0582328A1 (en) 1994-02-09
US5340845A (en) 1994-08-23
ATE163301T1 (de) 1998-03-15
DE69317021D1 (de) 1998-03-26
DK0582328T3 (da) 1998-09-28
DE69317021T2 (de) 1998-08-27
GR3026380T3 (en) 1998-06-30

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Legal Events

Date Code Title Description
0001 Granted
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970710