CH613984A5 - Process for preparing a polyurethane polymer for the construction of deformable elements capable of absorbing shock energy - Google Patents

Process for preparing a polyurethane polymer for the construction of deformable elements capable of absorbing shock energy

Info

Publication number
CH613984A5
CH613984A5 CH1113974A CH1113974A CH613984A5 CH 613984 A5 CH613984 A5 CH 613984A5 CH 1113974 A CH1113974 A CH 1113974A CH 1113974 A CH1113974 A CH 1113974A CH 613984 A5 CH613984 A5 CH 613984A5
Authority
CH
Switzerland
Prior art keywords
preparing
construction
polyurethane polymer
elements capable
absorbing shock
Prior art date
Application number
CH1113974A
Inventor
Guido Dr Paganelli
Adelio Cicognini
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
Publication of CH613984A5 publication Critical patent/CH613984A5/en

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
CH1113974A 1973-08-31 1974-08-14 Process for preparing a polyurethane polymer for the construction of deformable elements capable of absorbing shock energy CH613984A5 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2840973A IT995244B (en) 1973-08-31 1973-08-31 POLYURETHANE POLYMER FOR THE CONSTRUCTION OF DEFORMABLE ELEMENTS SUITABLE TO ABSORB HIGH IMPACT ENERGY USABLE IN PARTICULAR NEOL SHOCK ABSORBERS FOR RAILWAY VEHICLES

Publications (1)

Publication Number Publication Date
CH613984A5 true CH613984A5 (en) 1979-10-31

Family

ID=11223546

Family Applications (1)

Application Number Title Priority Date Filing Date
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

Country Status (4)

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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3329775A1 (en) * 1983-08-18 1985-02-28 Bayer Ag, 5090 Leverkusen THERMOPLASTIC POLYURETHANES OF HIGH HEAT RESISTANCE BASED ON NAPHTHYLENE DIISOCYANATE, METHOD FOR THEIR PRODUCTION AND THEIR USE

Also Published As

Publication number Publication date
FR2242415A1 (en) 1975-03-28
FR2242415B1 (en) 1976-10-22
BE819444A (en) 1974-12-31
IT995244B (en) 1975-11-10

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Legal Events

Date Code Title Description
PL Patent ceased