Patent GB-349931-A (GB)
Title: A process for preparing a composition of matter
IPC: C08G8/28
Filed: 1930-02-25
Abstract: A potentially reactive phenol-aldehyde condensation product in the resole stage, that is, in the stage in which it is fusible and soluble in the usual solvents and may be converted by heat into an infusible and insoluble condition, is treated with a solution comprising an oxidation product of an air-drying fatty oil (for example, of linseed oil) in order to produce solutions which retain the resole character of the resin.  The products are soluble in solvents for use as varnishes, or they may be used as moulding compositions.  Linseed oil, wood oil, perilla oil, and poppy-seed oil may be employed after treating in known ways to contain oxidation products, such as by the influence of air and ozonization, or a solution of linoxyn in an appropriate solvent, for example, cyclohexanol, may be used for combination with the resole resin.  The combination may be accelerated by a catalyst; or by oxygen-carrying catalysts, such as manganese or lead oxides. The oxidation of the oils can also be effected in the presence of the resole, which is suspended in the fatty oil before the reaction, a solubilizing agent being added.  A solution in spirit of the soluble resinous product may be used in which to steep sheets of paper which are subsequently pressed together in a hot press to form laminated material.  The following examples are given, the parts being by weight:--(1) Equal parts of a resole resin, of air-blown linseed oil, and of a solvent mixture containing turpentine oil and spirit or benzol and spirit, are heated to 80-100 DEG  C., and evaporated in vacuum.  The clear viscous residue is soluble in spirit or oil of turpentine, and yield coatings which are rapidly air-dried and resistant to organic solvents such as carbon bisulphide.  (2) Instead of using air-blown linseed oil, as in the previous example, a mixture of equal parts of wood-oil and air-blown linseed oil is employed. (3) A resole obtained by the condensation of commercial cresol with formaldehyde in the presence of ammonia, solvents as in Example (1), and thickened air-blown linseed oil are heated together under pressure, and the solvent distilled off in vacuum. The finished product is soluble in spirit and oil of turpentine. (4) A resole and solvents as in the previous Examples, together with linseed oil-varnish and oxide of lead or manganese, are heated under pressure at 120 DEG  C.  Other resins such as natural or artificial resins may be dissolved in the oils, and other materials, as for instance, caoutchouc.  The residues after distillation under vacuum are soluble in the usual solvents. (5) A phenol-aldehyde resin, oxidized linseed oil and caoutchouc fused together, and solvents are heated at 100-130 DEG  C. until combination takes place.  The films are bright and can be vulcanized. Specifications 282,414, [Class 2 (iii), Dyes &c.], and 295,335, [Class 95, Paints &c.], are referred to.ALSO:Phenol-aldehyde condensation products.-A potentially reactive phenol-aldehyde condensation product in the resole stage, that is, in the stage in which it is fusible and soluble in the usual solvents and may be converted by heat into an infusible and insoluble condition, is treated with a solution comprising an oxidation product of an air-drying fatty oil (for example, of linseed oil) in order to produce solutions which retain the resole character of the resin. The products are soluble in solvents for use as varnishes, or they may be used as moulding compositions. Linseed oil, wood oil, perilla oil, and poppy-seed oil may be employed after treating in known ways to contain oxidation products, such as by the influence of air and ozonization, or a solution of linoxyn in an appropriate solvent, for example, cyclohexanol, may be used for combination with the resole resin. The combination may be accelerated by a catalyst; or by oxygen-carrying catalysts, such as manganese or lead oxides.  The oxidation of the oils can also be effected in the presence of the resole, which is suspended in the fatty oil before the reaction, a solubilizing agent being added.  A solution in spirit of the soluble resinous product may be used in which to steep sheets of paper which are subsequently pressed together in a hot press to form laminated material.  For the preparation of moulded articles, the combination products of resole resin and oxidized air-drying oil is poured when warm into a mould and hardened at 80 to 150 DEG  C. to obtain clear, hard elastic masses.  The following examples are given, the parts being by weight:-(1) Equal parts of a resole resin, of air-blown linseed oil, and of a solvent mixture containing turpentine oil and spirit or benzol and spirit, are heated to 80-100 DEG  C., and evaporated in vacuum.  The clear viscous residue is soluble in spirit or oil of turpentine, and yields coatings which are rapidly air-dried and resistant to organic solvents, such as carbon bisulphide.  (2) Instead of using air-blown linseed oil, as in the previous example, a mixture of equal parts of wood-oil and air-blown linseed oil is employed. (3) A resole obtained by the condensation of commercial cresol with formaldehyde in the presence of ammonia, solvents as in example (1), and thickened air-blown linseed oil are heated together under pressure, and the solvent distilled off in vacuum. The finished product is soluble in spirit and oil of turpentine. (4) A resole and solvents as in the previous examples, together with linseed oil-varnish and oxide of lead or manganese, are heated under pressure at 120 DEG  C.  Other resins such as natural or artificial resins may be dissolved in the oils, and other materials, as, for instance, caoutchouc.  The residues after distillation under vacuum are soluble in the usual solvents.  (5) A phenol-aldehyde resin, oxidized linseed oil and caoutchouc fused together, and solvents are heated at 100-130 DEG  C. until combination takes place.  The films are bright and can be vulcanized. Specifications 282,414, [Class 2 (iii), Dyes &c.], and 295,335, [Class 95, Paints &c.], are referred to.ALSO:A potentially reactive phenol-aldehyde condensation product in the resol stage, that is, in the stage in which it is fusible and soluble in the usual solvents and may be converted by heat into an infusible and insoluble condition, is treated with a solution comprising an oxidation product of an air-drying fatty oil (for example, of linseed oil) in order to produce solutions which retain the resol character of the resin.  The products are soluble in solvents for use as varnishes, or they may be used as moulding compositions.  Linseed oil, wood oil, perilla oil, and poppy-seed oil may be employed after treating in known ways to contain oxidation products, such as by the influence of air and ozonization, or a solution of linoxyn in an appropriate solvent, for example, cyclohexanol, may be used for combination with the resol resin.  The combination may be accelerated by a catalyst; or by oxygen-carrying catalysts, such as manganese or lead oxides. The oxidation of the oils can also be effected in the presence of the resol, which is suspended in the fatty oil before the reaction, a solubilizing agent being added.  For the preparation of moulded articles, the combination products of resol resin and oxidized air-drying oil is poured when warm into a mould and hardened at 80 DEG -150 DEG  C. to obtain clear hard elastic masses.  The following examples are given, the parts being by weight: (1) equal parts of a resol resin, of air-blown linseed oil, and of a solvent mixture containing turpentine oil and spirit or benzol and spirit, are heated to 80-100 DEG  C. and evaporated in vacuum.  The clear viscous residue is soluble in spirit or oil of turpentine, and yields coatings which are rapidly air-dried and resistant to organic solvents such as carbon bisulphide; (2) instead of using air-blown linseed oil, as in the previous example, a mixture of equal parts of wood-oil and air-blown linseed oil is employed; (3) a resol obtained by the condensation of commercial cresol with formaldehyde in the presence of ammonia, solvents as in example (1), and thickened air-blown linseed oil are heated together under pressure, and the solvent distilled off in vacuum.  The finished product is soluble in spirit and oil of turpentine; (4) a resol and solvents as in the previous examples, together with linseed oil-varnish and oxide of lead or manganese, are heated under pressure at 120 DEG  C.  Other resins such as natural or artificial resins may be dissolved in the oils, and other materials as, for instance, caoutchouc.  The residues after distillation under vacuum are soluble in the usual solvents; (5) a phenol-aldehyde resin, oxidized linseed oil and caoutchouc fused together, and solvents are heated at 100-130 DEG  C. until combination takes place. The films are bright and can be vulcanized. Specifications 282,414, [Class 2 (iii), Dyes &c.], and 295,335, [Class 22, Cements &c.], are referred to.