Patent GB-454616-A (GB)
Title: Improvements in or relating to the manufacture of resins and resin-like products
IPC: C09F1/00
Filed: 1935-09-27
Abstract: Technical products in the production of which resins are normally employed, e.g. oil, resin, cellulose and combination lacquers, varnishes, polishing substances (in which the resins may be used as slip-preventive agents), driving belt waxes, glues, e.g. paper sizes, cements, adhesives, plate printing colours, printing dye compositions (in which the resins may be used as binding agents), leather and linen printing compositions, solid greases, adhesive fats and waxes, draw greases, textile impregnating agents, fly-catching and vermin-destroying compositions, e.g. maggot lime, grafting wax, plastic masses and press masses, are manufactured by wholly or partially substituting for ordinary resins one or more resin-like products obtained by condensing one or more resin alcohols or technical mixtures thereof obtained by reduction of natural resins, with or without one or more other alcohols, with organic or inorganic acids in the pressure or absence of esterification catalysts such as acids or salts, e.g. boric, hydrochloric or sulphuric acid, sodium bisulphate, zinc chloride or sodium b -naphthalenesulphonate (but excluding the use of condensation products of abietenol alone with such organic or inorganic acids).  Suitable resin alcohols are those derived from colophony, from the fatty acid-containing or fatty acid-free resin acids from liquid resin p  (tallöl), or from copals, sandarak or amber.  Other alcohols suitable for use therewith include glycol, glycerol, ricinoleic alcohol, high molecular fatty alcohols, and naphthenic alcohol. Suitable acids for the esterification are boric, phosphoric and other inorganic acids, mono- or polybasic organic acids, e.g. lactic, laevulinic and lauric acids, castor oil fatty acids, salicylic, pyromucic, oxalic, tartaric, adipic and phthalic acids, alone or in admixture, and also resin acids or ordinary colophony. In examples: (1) the resin alcohol obtained by catalytic high pressure hydrogenation of colophony is heated with boric acid while passing nitrogen or carbon dioxide; lacquers are obtained from the product in combination with stand oils; (2) the resin alcohol of (1) is heated with colophony in the presence of boric acid in a stream of nitrogen; the product is suitable as a binding agent in printing colours, and for the production of impregnating agents for waxed fabrics and of linoleum covering masses; (3) the resin alcohol obtained by high pressure hydrogenation of liquid resin (tallöl) resin acid is heated with phthalic acid; the product is suitable for the production of enamel lacquers; (4) the resin alcohol obtained by high vacuum distillation of the high pressure hydrogenation product of congo copal is heated with tartaric acid and glycerol in the presence of boric acid in a stream of carbon dioxide; the product can be used in the production of cellulose combination lacquers.  Specifications 440,259 and 442,772 are referred to.  The Specification as open to inspection under Sect. 91 comprises also the manufacture of the resin alcohol esters.  It contains a further example in which the resin obtained by high pressure reduction of dammar resin is heated with benzoic acid in the presence of boric acid in a stream of inert gas.  The product may be used in the production of nitrocellulose covering lacquers. This subject-matter does not appear in the Specification as accepted.ALSO:Solid greases and draw greases contain one or more resin-like products obtained by condensing one or more resin alcohols or technical mixtures thereof obtained by reduction of natural resins, with or without one or more other alcohols, with organic or inorganic acids in the presence or absence of esterification catalysts (but excluding the use of condensation products of abietenol alone with such acids).  Specifications 440,259 and 442,772, [both in Group IV], are referred to.