YU48790A - PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION - Google Patents

PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION

Info

Publication number
YU48790A
YU48790A YU48790A YU48790A YU48790A YU 48790 A YU48790 A YU 48790A YU 48790 A YU48790 A YU 48790A YU 48790 A YU48790 A YU 48790A YU 48790 A YU48790 A YU 48790A
Authority
YU
Yugoslavia
Prior art keywords
resin
phenol
preparations
ester
application
Prior art date
Application number
YU48790A
Other languages
Serbo-Croatian (sh)
Inventor
P.H.R.B. Lemon
J. Ireland
D.W. Baker
Original Assignee
Borden (Uk) Limited
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 Borden (Uk) Limited filed Critical Borden (Uk) Limited
Priority to YU48790A priority Critical patent/YU48790A/en
Publication of YU48790A publication Critical patent/YU48790A/en

Links

Abstract

PREPARATI FENOLNE SMOLE I NJIHOVA PRIMENA.Preparat fenolne smole obuhvata estar-vulkanizibilnu fenol-aldehid smolu u alkalnom vodenom rastvoru gde fenol-aldehid smola je metilolovana fenolna novolak smola. Poželjno, tokom proizvodnje metilolovane fenolne novolak smole, neizreagovani fenol je uklonjen. Preparat se može koristiti za reakciju sa organskim estrom kao očvršćivačem, kao vezivo u proizvodnji livačkih kalupa i jezgara koji imaju visoku jačinu. Dalje ugradjivanje ariloksi alkohola u novolak smolno vezivo dodatno poboljšava krajnju jačinu proizvoda dobivenog tehnikom gasnog vulkanizovanja korišćenjem pare estra, takvog kao što je metil format. PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION. The preparation of phenolic resin includes ester-vulcanizable phenol-aldehyde resin in alkaline aqueous solution where phenol-aldehyde resin is methylated phenolic novolak resin. Preferably, during the production of the methylated phenolic novolac resin, the unreacted phenol is removed. The preparation can be used for reaction with organic ester as a hardener, as a binder in the production of foundry molds and cores having high strength. Further incorporation of the aryloxy alcohol into the novolac resin binder further improves the final strength of the product obtained by the gas vulcanization technique using ester vapor, such as methyl formate.

YU48790A 1990-03-13 1990-03-13 PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION YU48790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
YU48790A YU48790A (en) 1990-03-13 1990-03-13 PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
YU48790A YU48790A (en) 1990-03-13 1990-03-13 PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION

Publications (1)

Publication Number Publication Date
YU48790A true YU48790A (en) 1992-12-21

Family

ID=47277929

Family Applications (1)

Application Number Title Priority Date Filing Date
YU48790A YU48790A (en) 1990-03-13 1990-03-13 PREPARATIONS OF PHENOL RESINS AND THEIR APPLICATION

Country Status (1)

Country Link
YU (1) YU48790A (en)

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