IT1215403B - PROTECTIVE HELMETS CONSISTING OF ESSENTIAL POLYISOCYANURIC BASED COMPOSITES - Google Patents

PROTECTIVE HELMETS CONSISTING OF ESSENTIAL POLYISOCYANURIC BASED COMPOSITES

Info

Publication number
IT1215403B
IT1215403B IT8719925A IT1992587A IT1215403B IT 1215403 B IT1215403 B IT 1215403B IT 8719925 A IT8719925 A IT 8719925A IT 1992587 A IT1992587 A IT 1992587A IT 1215403 B IT1215403 B IT 1215403B
Authority
IT
Italy
Prior art keywords
polyisocyanuric
essential
protective helmets
based composites
group
Prior art date
Application number
IT8719925A
Other languages
Italian (it)
Other versions
IT8719925A0 (en
Inventor
Bianchin Eugenio
Longoni Luigi
Original Assignee
Montedipe Spa
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 Montedipe Spa filed Critical Montedipe Spa
Priority to IT8719925A priority Critical patent/IT1215403B/en
Publication of IT8719925A0 publication Critical patent/IT8719925A0/en
Priority to ES198888105186T priority patent/ES2033355T3/en
Priority to EP88105186A priority patent/EP0288771B1/en
Priority to DE8888105186T priority patent/DE3867688D1/en
Priority to AT88105186T priority patent/ATE71495T1/en
Application granted granted Critical
Publication of IT1215403B publication Critical patent/IT1215403B/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A42—HEADWEAR
    • A42B—HATS; HEAD COVERINGS
    • A42B3/00—Helmets; Helmet covers ; Other protective head coverings
    • A42B3/04—Parts, details or accessories of helmets
    • A42B3/06—Impact-absorbing shells, e.g. of crash helmets

Abstract

Protective helmets for motor-cyclists and/or motorists consisting of high density composite materials,essentially based on a polyisocyanuric matrix, having a density equal to or higher than 500 and preferably than 1,000 kg/m<3>, containing reinforcing fillers, wherein the polyisocyanuric matrix derives from a repeating structural unit having the formula: <CHEM> wherein at least one X group represents the group -R1-NCO and at least one X group represents the group: -R1-NH-CO-OR2(-OCO-NH-R1-NCO)n.
IT8719925A 1987-04-01 1987-04-01 PROTECTIVE HELMETS CONSISTING OF ESSENTIAL POLYISOCYANURIC BASED COMPOSITES IT1215403B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
IT8719925A IT1215403B (en) 1987-04-01 1987-04-01 PROTECTIVE HELMETS CONSISTING OF ESSENTIAL POLYISOCYANURIC BASED COMPOSITES
ES198888105186T ES2033355T3 (en) 1987-04-01 1988-03-30 PROTECTIVE HELMETS CONSISTING OF COMPOSITE MATERIALS ESSENTIALLY BASED ON A POLYISOCIANURIC MATRIX.
EP88105186A EP0288771B1 (en) 1987-04-01 1988-03-30 Protective helmets consisting of composite materials essentially based on a polyisocyanuric matrix
DE8888105186T DE3867688D1 (en) 1987-04-01 1988-03-30 PROTECTIVE HELMET MADE FROM A COMPOSITE MATERIAL BASED ON A POLYISOCYANURATE.
AT88105186T ATE71495T1 (en) 1987-04-01 1988-03-30 SAFETY HELMET MADE OF ESSENTIALLY POLYISOCYANURATE BASED COMPOSITE.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8719925A IT1215403B (en) 1987-04-01 1987-04-01 PROTECTIVE HELMETS CONSISTING OF ESSENTIAL POLYISOCYANURIC BASED COMPOSITES

Publications (2)

Publication Number Publication Date
IT8719925A0 IT8719925A0 (en) 1987-04-01
IT1215403B true IT1215403B (en) 1990-02-08

Family

ID=11162390

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8719925A IT1215403B (en) 1987-04-01 1987-04-01 PROTECTIVE HELMETS CONSISTING OF ESSENTIAL POLYISOCYANURIC BASED COMPOSITES

Country Status (5)

Country Link
EP (1) EP0288771B1 (en)
AT (1) ATE71495T1 (en)
DE (1) DE3867688D1 (en)
ES (1) ES2033355T3 (en)
IT (1) IT1215403B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4423194A1 (en) * 1994-07-01 1996-01-04 Triumph International Ag Process for the production of formations in fabrics made from aromatic polyamides

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1285051A (en) * 1969-03-27 1972-08-09 Ici Ltd Fibre reinforced polymer compositions
US3817939A (en) * 1973-02-21 1974-06-18 Minnesota Mining & Mfg Organic carbonate salts as isocyanate trimerization catalysts
IT1190432B (en) * 1985-12-10 1988-02-16 Montedison Spa HIGH DENSITY COMPOSITES BASED ON ESSENTIAL POLYISOCYANURIC

Also Published As

Publication number Publication date
EP0288771B1 (en) 1992-01-15
IT8719925A0 (en) 1987-04-01
ES2033355T3 (en) 1993-03-16
ATE71495T1 (en) 1992-02-15
EP0288771A3 (en) 1989-08-23
EP0288771A2 (en) 1988-11-02
DE3867688D1 (en) 1992-02-27

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Legal Events

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

Effective date: 19930422