IT1185554B - Atactic polypropylene prepn. - Google Patents

Atactic polypropylene prepn.

Info

Publication number
IT1185554B
IT1185554B IT20385/85A IT2038585A IT1185554B IT 1185554 B IT1185554 B IT 1185554B IT 20385/85 A IT20385/85 A IT 20385/85A IT 2038585 A IT2038585 A IT 2038585A IT 1185554 B IT1185554 B IT 1185554B
Authority
IT
Italy
Prior art keywords
sectional area
cross
single wires
wires
circular
Prior art date
Application number
IT20385/85A
Other languages
Italian (it)
Other versions
IT8520385A0 (en
Inventor
Umberto Zucchini
Viviano Banzi
Roberto Fabbri
Original Assignee
Dutral 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 Dutral Spa filed Critical Dutral Spa
Priority to IT20385/85A priority Critical patent/IT1185554B/en
Publication of IT8520385A0 publication Critical patent/IT8520385A0/en
Application granted granted Critical
Publication of IT1185554B publication Critical patent/IT1185554B/en

Links

Landscapes

  • Resistance Heating (AREA)

Abstract

The radiant heater has a heating element composed of heating wire, which is laid on an insulating support dish and which forms a current-carrying cross-sectional area and a heat-radiating surface. The current-carrying cross-sectional area is divided between at least two single wires which are twisted together. The single wires have the same or different circular diameter. The single wires have a cross-sectional area which deviates from the circular form. The cross-sectional area is stellar or oval in shape. One or more single wires have a circular diamter and one or more single wires have a cross-sectional area which deviates from the circular form. The heating element is laid uncoiled and spirally on the insulating support. The wires are pre-oxidised.
IT20385/85A 1985-04-17 1985-04-17 Atactic polypropylene prepn. IT1185554B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT20385/85A IT1185554B (en) 1985-04-17 1985-04-17 Atactic polypropylene prepn.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT20385/85A IT1185554B (en) 1985-04-17 1985-04-17 Atactic polypropylene prepn.

Publications (2)

Publication Number Publication Date
IT8520385A0 IT8520385A0 (en) 1985-04-17
IT1185554B true IT1185554B (en) 1987-11-12

Family

ID=11166242

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20385/85A IT1185554B (en) 1985-04-17 1985-04-17 Atactic polypropylene prepn.

Country Status (1)

Country Link
IT (1) IT1185554B (en)

Also Published As

Publication number Publication date
IT8520385A0 (en) 1985-04-17

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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: 19960429