Patent GB-516344-A (GB)
Title: Improvements in or relating to the manufacture of artificial resins
IPC: C08L61/06
Filed: 1938-05-17
Abstract: 516,344. Resinous condensation products. ALBERT PRODUCTS, Ltd. May 17, 1938, No. 14720. Convention date, June 18, 1937. Samples furnished. [Class 2 (iii)] " Alcohol treated phenol resins " are heated with monomeric and/or polymeric unsaturated polymerisable hydrocarbons. " Alcohol treated phenol resins " are phenol artificial resins produced from oil-insoluble hardenable pnenolaldehyde condensates,.- e.g. phenol-alcohols, or such condensates etherified with mono- or poly-alcohols or their halohydrins or hydroxy acids, by heating to above 70‹C. with monoalcohols boiling above 80‹C., simultaneously or subsequently distilling off the alcohol, the products being combined or not with fatty acids or fatty oils. Phenols specified are phenol, cresols, and dihydroxydiphenyldimethylmethane. Polymerizable hydrocarbons specified are: cyclic compounds, e.g. styrene, divinylbenzene, vinyl anisole, cumarone, indene, cyclopentadiene; rubber-producing hydrocarbons, polymers thereof, natural rubber, bodies obtained by chemical or thermal treatment of caoutchouc bodies ; isobutylene ; compounds separated in refining of mineral oils, e.g., by acid-treated clay or selective solvents such as furfurol, aniline, phenol, or nitrobenzene ; " acid resins'' produced by sulphuric acid treatment of crude oil ; mono- and diolefines from mineral oil fission; hydrocarbons formed on carbonization, cracking, or distillation of natural carboniferous materials ; bodies obtained by splitting-off hydrogen or hydrogen halide from organic substances. The materials may be heated together in mixing apparatus or the resin may be dissolved in hydrocarbon monomer, worked up into shaped bodies, coatings, and films and then heated. The products, with or without fillers may be used for moulding, impregnating fibre-boards and woven pressed materials, floor and wall coverings, insulating plates, coatings, binding agents in electrical and metallurgical apparatus, e.g., carbon brushes, mixture resistances, core- and mould-binders, and generally as rubber substitutes. In examples: (1), (4) dihydroxydiphenyldimethylmethane is alkali-condensed with 3.5 mols formaldehyde, the condensate heated with butanol, and the resin is heated with cumarone resin or dissolved in styrene and the mixture heated; (2) phenol is alkali-condensed with 1.5 mols formaldehyde, the condensate heated with amyl and hexyl alcohols, and the resin is heated with unsaturated benzine hydrocarbons from mineral oil refining to a product which may be used, with or without " Albertol " (Registered Trade Mark) resins, copal, or fatty oils, in lacquers, or may be gelatinized and mixed with sawdust, cork dust, dyes, resin, linoxyn, or factice; (3) cresol is alkali-condensed with formaldehyde, the condensate heated with butanol and cyclohexanol, and the resin heated under pressure with caoutchouc, sulphur, zinc oxide and a vulcanization accelerator. Samples have been furnished; under Sect. 2 (5) including the following:- cresol is alkali-condensed with 1.8 mols formaldehyde, the condensate etherified by benzyl chloride and then heated with butanol and hexanol, and the resin heated with an isobutylene polymer.