Patent GB-370946-A (GB)
Title: A process for the production of soluble resinous products
Filed: 1930-10-07
Abstract: Fusible resinous products, soluble in oil and useful as varnish ingredients, are prepared by reacting a fusible phenol-aldehyde (or -ketone) condensation product with a polyhydric alcohol that has been partially neutralized with a non-resinous reagent, e.g. with a non-resinous aliphatic or aromatic acid or with an organic halogen compound capable of condensing with the polyhydric alcohol.  The phenol-aldehyde (or -ketone) condensation product is preferably produced in the presence of a natural resin or its ester (or a mixture thereof), and of a metal organic salt, e.g. a resinate, stearate, oleate, tungate or acetate of a metal of the second periodic group or of manganese, lead, cobalt or an alkali metal.  The preformed polyhydric alcohol ester or other derivative may be heated with the preformed phenol-aldehyde (or -ketone) condensation product, or the condensation product may be produced in the presence of the polyhydric alcohol derivative, or all the reagents may be mixed and heated together.  According to the examples: (1) phthalic anhydride is heated with glycerol, and the product is heated with a phenol-aldehyde condensation product prepared as indicated above; (2) phthalic anhydride is heated with glycerol, and the product is heated with a phenol-aldehyde condensation product, prepared as indicated above, and cracked or dry-distilled fossil gum; (3) as in example 1, but with different proportions; (4) the reagents of any of examples 1-3 are mixed together from the start and heated; (5) 4 : 4<1>-dichlordiphenyl is heated with glycerol, and the product is heated with a phenol-aldehyde condensation product prepared as indicated above; (6) as in example 5, except that cracked or dry-distilled fossil resin such as congo, manila, pontianac or dammar is added with the phenol-aldehyde condensation product; instead of 4 : 4<1>-dichlordiphenyl there may be used halogen derivatives of benzene, naphthalene or anthracene, such as dichlornaphthalene, or benzoic acid or anthracene dicarboxylic acids; (7) as in example 1, but with different proportions; (8) linoleic acid is heated with glycerol to produce a mono-ester, which is heated with phenol, formaldehyde, and zinc abietate and then, after removal of water, with glyceryl trirosinate and colophony or copal; (9) glyceryl monolinoleate is heated with phenol, formaldehyde, zinc abietate and colophony; (10) glyceryl monolinoleate and mono- and di-abietate is heated with phenol, formaldehyde, zinc oxide and colophony; (11) glycerol, linoleic acid and colophony are heated together, and the product heated with phenolic resin, as indicated above.  Reference is made to the use of acetaldehyde and of partial esters of glycerol with oleic, stearic, palmitic, ricinoleic, linolenic, and myristic acids and the acids of china-wood oil and other oils.  Specifications 253,519, 327,158, 334, 572, [all in Class 2 (iii), Dyes &c.], and 370,916 are referred to.  The Provisional Specification states that bitumen, coumarone resin, asphalt or fatty-acid pitches may replace part of the natural resin, and that the phenolic condensation product may be produced in the presence of a compound of tin, tungsten, chromium or tellurium.