RO86172B1 - Heat indicating pen composition - Google Patents

Heat indicating pen composition

Info

Publication number
RO86172B1
RO86172B1 RO110227A RO11022783A RO86172B1 RO 86172 B1 RO86172 B1 RO 86172B1 RO 110227 A RO110227 A RO 110227A RO 11022783 A RO11022783 A RO 11022783A RO 86172 B1 RO86172 B1 RO 86172B1
Authority
RO
Romania
Prior art keywords
composition
degree
indicating pen
heat indicating
pen composition
Prior art date
Application number
RO110227A
Other languages
Romanian (ro)
Other versions
RO86172A2 (en
Inventor
Lidia Paruta
Artemiza Boldijar
George-Dinu Cismaru
Eugenia Ivan
Marioara Popa
Original Assignee
Centrul De Chimie-Fizica
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 Centrul De Chimie-Fizica filed Critical Centrul De Chimie-Fizica
Priority to RO110227A priority Critical patent/RO86172B1/en
Publication of RO86172A2 publication Critical patent/RO86172A2/en
Publication of RO86172B1 publication Critical patent/RO86172B1/en

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Landscapes

  • Inks, Pencil-Leads, Or Crayons (AREA)

Abstract

Prezenta inventie se refera la o compozitie pentru creion termoindicator de viraj la 150+5 degree C utilizat la controlul temperaturii în lucrari de sudura si în anumite parti ale unor instalatii reactoare si conducte. Compozitia pentru creionul termoindicator de 150-5 degree C este constituita din : complex tiocianic al nichelului cu utropina ca substanta termosensibila carbonat de calciu ca material de umplutura si amestec de parafina cu reziduu de polietilena calianti. Creionul termoindicator de 150-5 degree prezinta un viraj de culoare de la vernil la oliv în timp de 2 sec.BACKGROUND OF THE INVENTION The present invention relates to a composition for a 150 + 5 degree C thermostatic pencil used to control temperature in welding works and in certain parts of reactor and pipe installations. The composition for the 150-5 ° C thermowell pen is constituted by: the thiocyanate of nickel with utropine as the calcium carbonate thermosensitive substance as a filler material and a blend of paraffin with a polyethylene residue. The 150-5 degree thermo-indicating pin shows a color turn from vernil to oliv in 2 sec.

RO110227A 1983-03-05 1983-03-05 Heat indicating pen composition RO86172B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO110227A RO86172B1 (en) 1983-03-05 1983-03-05 Heat indicating pen composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO110227A RO86172B1 (en) 1983-03-05 1983-03-05 Heat indicating pen composition

Publications (2)

Publication Number Publication Date
RO86172A2 RO86172A2 (en) 1985-02-25
RO86172B1 true RO86172B1 (en) 1985-03-01

Family

ID=20112759

Family Applications (1)

Application Number Title Priority Date Filing Date
RO110227A RO86172B1 (en) 1983-03-05 1983-03-05 Heat indicating pen composition

Country Status (1)

Country Link
RO (1) RO86172B1 (en)

Also Published As

Publication number Publication date
RO86172A2 (en) 1985-02-25

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