RO98726B1 - Polietilentereftalat sub forma de pulberi fine si procedeu de obtinere a acestuia - Google Patents

Polietilentereftalat sub forma de pulberi fine si procedeu de obtinere a acestuia

Info

Publication number
RO98726B1
RO98726B1 RO130169A RO13016987A RO98726B1 RO 98726 B1 RO98726 B1 RO 98726B1 RO 130169 A RO130169 A RO 130169A RO 13016987 A RO13016987 A RO 13016987A RO 98726 B1 RO98726 B1 RO 98726B1
Authority
RO
Romania
Prior art keywords
fine powders
obtaining
same
polyethylene terephthalate
polyethylene terephtalate
Prior art date
Application number
RO130169A
Other languages
English (en)
Inventor
Corneliu Stan
Lucian Flaiser
Luminita Racovitan
Cecilia Tvardochlieb
Original Assignee
Combinatul De Fibre Sintetice
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 Combinatul De Fibre Sintetice filed Critical Combinatul De Fibre Sintetice
Priority to RO130169A priority Critical patent/RO98726B1/ro
Publication of RO98726B1 publication Critical patent/RO98726B1/ro

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Abstract

Prezenta inventie se refera la realizarea unui polietilentereftalat, sub forma de pulberi fine, utilizat ca suport pentru concentrate de culoare, pentru colorarea în masa a firelor si fibrelor poliesterice, cu o vâscozitate relativa în fenol: tetracloretan 3:2 de 500...820 si punct de topire de 250...265 degree C. Procedeul de obtinere porneste de la granule de polietilenterreftalat paralelipipedice sau cilindrice, care se trateaza cu alcool benzilic, se ridica temperatura si se mentine astfel pentru dizolvare, dupa care se raceste pentru precipitare, iar pulberea fina formata se filtreaza, se spala, se usuca, se disperseaza mecanic si se siteaza.
RO130169A 1987-10-23 1987-10-23 Polietilentereftalat sub forma de pulberi fine si procedeu de obtinere a acestuia RO98726B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO130169A RO98726B1 (ro) 1987-10-23 1987-10-23 Polietilentereftalat sub forma de pulberi fine si procedeu de obtinere a acestuia

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO130169A RO98726B1 (ro) 1987-10-23 1987-10-23 Polietilentereftalat sub forma de pulberi fine si procedeu de obtinere a acestuia

Publications (1)

Publication Number Publication Date
RO98726B1 true RO98726B1 (ro) 1990-04-30

Family

ID=40906821

Family Applications (1)

Application Number Title Priority Date Filing Date
RO130169A RO98726B1 (ro) 1987-10-23 1987-10-23 Polietilentereftalat sub forma de pulberi fine si procedeu de obtinere a acestuia

Country Status (1)

Country Link
RO (1) RO98726B1 (ro)

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