RO86606B1 - Procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat - Google Patents

Procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat

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Publication number
RO86606B1
RO86606B1 RO109140A RO10914082A RO86606B1 RO 86606 B1 RO86606 B1 RO 86606B1 RO 109140 A RO109140 A RO 109140A RO 10914082 A RO10914082 A RO 10914082A RO 86606 B1 RO86606 B1 RO 86606B1
Authority
RO
Romania
Prior art keywords
castor oil
low content
alkyd resin
dehydroxylated
phthalic anhydride
Prior art date
Application number
RO109140A
Other languages
English (en)
Inventor
Teodor Domide
Iancu Motiu
Maria Rosetti
Daniela Dobre
Constantin Berceanu
Iuliana Toma
Original Assignee
Centrul De Cercetari Protectii Anticorosive
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 Cercetari Protectii Anticorosive filed Critical Centrul De Cercetari Protectii Anticorosive
Priority to RO109140A priority Critical patent/RO86606B1/ro
Publication of RO86606B1 publication Critical patent/RO86606B1/ro

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Abstract

Inventia se refera la un procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat, conform caruia, se efectueaza initial poliesterificarea uleiului de ricin cu trimetilolpropan sau propilenglicol cu anhidrida ftalica, la temperatura de 260-270 degree C pîna cînd vîscozitatea masei de reactie initial în scadere, începe sa creasca, dupa care se adauga o a doua portie de poliol si anhidrida ftalica continutul de ulei al rasinii initial de 50...70% scazînd la 20...34% si se continua poliesterificarea la temperatura de 200...240 degree C pîna la atingerea unui indice de aciditate de maximum 30 si un timp de curgere prin cupa viscozimetrica cu phi 4 la 20 degree C a solutiei de 50% în xilen, de 50...250 s.
RO109140A 1982-11-26 1982-11-26 Procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat RO86606B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO109140A RO86606B1 (ro) 1982-11-26 1982-11-26 Procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO109140A RO86606B1 (ro) 1982-11-26 1982-11-26 Procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat

Publications (1)

Publication Number Publication Date
RO86606B1 true RO86606B1 (ro) 1985-04-30

Family

ID=40903735

Family Applications (1)

Application Number Title Priority Date Filing Date
RO109140A RO86606B1 (ro) 1982-11-26 1982-11-26 Procedeu pentru obtinerea unor rasini alchidice cu continut scazut de ulei de ricin dehidroxilat

Country Status (1)

Country Link
RO (1) RO86606B1 (ro)

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