DE422538C - Process for improving resinous polymerization products from aldehydes - Google Patents

Description

Process for improving resinous polymerization products from aldehydes. M, Vir have found that resin-like polymerisation products are possible The properties of aldehydes can be improved if they are made organic Bodies such as oty acids or bodies containing carbonyl groups or their compounds incorporated. Instead of pure acidic acids or carbonyl-containing bodies their mixtures with other compounds can also be taken. As such additives come into consideration z. B. Dioty stearic acid, ricinoleic acid, diotyabietic acid, salicylic acid, Castor oil, mesitylotyd, Phoron and others. The resins benefit particularly from this treatment in terms of elasticity, solubility and meltability.

The method can be carried out, for example, that one in the Resin melt enters the Oty connection, one can also use the components at the same time Bringing time to melt or the resin of the liquid or liquefied Add oxy compound. The incorporation of the oxy compounds is often carried out by Adding a solvent facilitated. If through the mediating influence If the oxy compounds have been incorporated into the solvent, this will be done Solvent your reaction product again from the Yeti. beispirl, -n-cIse by distilling off. Wash out or the like. The resins obtained can be used before or after the incorporation of the Oiy bodies in a known manner, be it by esterification or by adding metal compounds or hardened by thermal treatment.

Example i: A according to patent 379S32 by condensation or polymerisation Synthetic resin produced by Acetaldehvd by the action of alkali from 11p. r io ° is fused with 3o percent of its weight ricinoleic acid and briefly on i 50 'heated and obtained by rolling out the melt into shellac-like flakes. This product differs from the original product in that it is more elastic and lighter color and is excellent, e.g. B. as a substitute for shellac for polishing purposes. suitable as model lacquer etc. Example a.

One fuses a condensation or polymerization of acetaldehyde with alkali and Beliandlun @ - the condensation product with dilute acetic acid in a "rrtialtenes acetaldehyde resin fromi 11p. t ; o ni_t 3o percent castor oil and li <irtet e @ by heating for one hour with 2 percent Al (0 £ i) 3. The product can be worked up and used as in Example i. It is more elastic, harder and lighter than the original resin.

Example 3. Acetaldehyde resin according to patent 38172o is made with 75 parts Castor oil fused. The result is one that melts at about 60 °, at milder Warming very ductile hatred; which can also be used as a wax substitute.

Example q ..

An acetaldehyde resin, which is borax soluble through an oxidizing treatment has been made, 50 percent of castor oil is incorporated and thereby its meltability elevated.

Example s.

A resin according to patent 379832 is in a stirred autoclave with a Addition of 20 percent mesithyloxy d melted and melted for some time obtain. The resin obtained is more elastic, more soluble in fuel and easier to melt <11s the starting product.

Claims (1)

PATENT APPLICATION :: i. Process for improving resinous Polymerization products from aldehydes, characterized in that they are organic Body; Oxy acids or bodies containing carbonyl groups or their compounds incorporated, possibly under pressure. a. Embodiment of the method according to Claim I, characterized in that the incorporation of the o: ty acids or carbonyl-containing body makes in the presence of a solvent, which in the further During the course of the process, the reaction product is withdrawn again. 3rd embodiment of the method according to claims i and a, characterized in that the resins before or after incorporating the oxyacids or carbonyl-containing bodies Subject to hardening process.