Patent GB-1034601-A (GB)
Title: Improvements in or relating to methods of producing surface coverings
Inventor: JENNINGS THOMAS CHARLES SQUIRE
IPC: C08L67/06
Filed: 1964-02-17
Abstract: Polyester resin surfaces of more than one colour are produced on a bed or base material by preparing a pourable to spreadable mixture including a pigmented solution of a first polymerizable resin, a solution of a second polymerizable resin, which second resin is incompatible and immiscible with the first resin, said solution of the second resin being pigmented with a different pigment from the solution of the first resin, and one or more fillers, applying the mixture together with an activator for said resins to a bed or base material and causing the mixture to polymerize completely to form a solid surface exhibiting a mottled effect.  In a modification a flooring or panel for flooring is produced by applying to a bed or base material a lower layer of resin material containing no filler, covering the layer with fibre glass mat, applying pressure to the fibre glass mat in order to force the mat at least partly into the lower layer, and then applying an upper layer of a pourable to spreadable mixture of two pigmented polymerizable materials as above as polymerizing the material.  The illustrated polymerizable resins are unsaturated polyesters and they are dissolved in ethylenically unsaturated compounds.  Preferably one polyester component is formed from maleic and phthalic anhydrides and ethylene glycol and then diluted with styrene, and the other polyester component is formed from maleic and phthalic anhydrides, the diol obtained from dicyclopentadiene by treatment with CO and H2 and subsequent hydrogenation and ethylene glycol, and then diluted with styrene.ALSO:A mottled surface covering is produced on a bed or base material, e.g. a floor or wall surface, by preparing a pourable to spreadable mixture including a pigmented solution of a first polymerizable resin, a solution of a second polymerizable resin, which second resin is incompatible and immiscible with the first resin, said solution of the second resin being pigmented with a different pigment from the solution of the first resin, and one or more fillers, applying the mixture together with an activator for said resins to the bed or base material and causing the mixture to polymerize completely to form a solid mottled surface. In a modification a flooring or panel for flooring is produced by applying to the bed or base material a lower layer of resin material containing no fillet, covering the layer with fibre glass mat, applying pressure to the fibre glass mat to force the mat at least partly into the lower layer, and then applying an upper layer of a pourable to spreadable mixture of two pigmented polymerizable materials as above and polymerizing the material. The illustrated polymerizable resins are unsaturated polyesters and they are dissolved in ethylerically unsaturated compounds. Preferably one polyester component is formed from maleic and phthalic anhydrides and ethylene glycol and then diluted with styrene, and the other polyester component is formed from maleic and phthalic anhydrides, the diol obtained from dicyclopentadiene by treatment with CO and H2 and subsequent hydrogenation and ethylene glycol and then diluted with styrene.  The base material may be a metal sheet and several layers of the pigmented first and second resins may be applied.  The pigments may be organic or inorganic.  Fillers mentioned are sand, quartz powder, asbestos powder, powdered chalk, silicic acid and insoluble silicates.