IT995244B - Polimero poliuretanico per la costruzione di elementi deformabili atti ad assorbire elevata energia d urto utilizzabili in particolare neoli ammortizzatori per veicoli ferroviari - Google Patents

Polimero poliuretanico per la costruzione di elementi deformabili atti ad assorbire elevata energia d urto utilizzabili in particolare neoli ammortizzatori per veicoli ferroviari

Info

Publication number
IT995244B
IT995244B IT2840973A IT2840973A IT995244B IT 995244 B IT995244 B IT 995244B IT 2840973 A IT2840973 A IT 2840973A IT 2840973 A IT2840973 A IT 2840973A IT 995244 B IT995244 B IT 995244B
Authority
IT
Italy
Prior art keywords
neol
construction
impact energy
high impact
shock absorbers
Prior art date
Application number
IT2840973A
Other languages
English (en)
Inventor
A Cigognini
G Paganelli
Original Assignee
Pirelli
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 Pirelli filed Critical Pirelli
Priority to IT2840973A priority Critical patent/IT995244B/it
Priority to CH1113974A priority patent/CH613984A5/xx
Priority to FR7428798A priority patent/FR2242415B1/fr
Priority to BE148127A priority patent/BE819444A/xx
Application granted granted Critical
Publication of IT995244B publication Critical patent/IT995244B/it

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/3605—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by their material
    • 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
    • C08G18/10—Prepolymer processes involving reaction of isocyanates or isothiocyanates with compounds having active hydrogen in a first reaction step
    • 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
    • C08G18/7678—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing condensed aromatic rings

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)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polyurethanes Or Polyureas (AREA)
IT2840973A 1973-08-31 1973-08-31 Polimero poliuretanico per la costruzione di elementi deformabili atti ad assorbire elevata energia d urto utilizzabili in particolare neoli ammortizzatori per veicoli ferroviari IT995244B (it)

Priority Applications (4)

Application Number Priority Date Filing Date Title
IT2840973A IT995244B (it) 1973-08-31 1973-08-31 Polimero poliuretanico per la costruzione di elementi deformabili atti ad assorbire elevata energia d urto utilizzabili in particolare neoli ammortizzatori per veicoli ferroviari
CH1113974A CH613984A5 (en) 1973-08-31 1974-08-14 Process for preparing a polyurethane polymer for the construction of deformable elements capable of absorbing shock energy
FR7428798A FR2242415B1 (it) 1973-08-31 1974-08-22
BE148127A BE819444A (fr) 1973-08-31 1974-09-02 Polymere de polyurethame destine a la fabrication d'elements deformables

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2840973A IT995244B (it) 1973-08-31 1973-08-31 Polimero poliuretanico per la costruzione di elementi deformabili atti ad assorbire elevata energia d urto utilizzabili in particolare neoli ammortizzatori per veicoli ferroviari

Publications (1)

Publication Number Publication Date
IT995244B true IT995244B (it) 1975-11-10

Family

ID=11223546

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2840973A IT995244B (it) 1973-08-31 1973-08-31 Polimero poliuretanico per la costruzione di elementi deformabili atti ad assorbire elevata energia d urto utilizzabili in particolare neoli ammortizzatori per veicoli ferroviari

Country Status (4)

Country Link
BE (1) BE819444A (it)
CH (1) CH613984A5 (it)
FR (1) FR2242415B1 (it)
IT (1) IT995244B (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329775A1 (de) * 1983-08-18 1985-02-28 Bayer Ag, 5090 Leverkusen Thermoplastische polyurethane hoher waermestandfestigkeit auf basis von naphthylendiisocyanat, verfahren zu ihrer herstellung und ihre verwendung

Also Published As

Publication number Publication date
CH613984A5 (en) 1979-10-31
FR2242415A1 (it) 1975-03-28
FR2242415B1 (it) 1976-10-22
BE819444A (fr) 1974-12-31

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