| 摘要 |
1,098,471. Laminates. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb. 9, 1965 [March 9, 1964; Oct. 23, 1964], Nos. 9853/64 and 43337/64. Heading B5N. A machine for the continuous manufacture of laminates comprising a polyurethane foam core, two facing sheets and two separate parallel edging strips, the whole being bonded together in a unitary construction, comprises 1 and 12 adapted to transport two parallel sheets of facing material, the upper of said sheets being introduced into the conveyer system at a later point to the lower, a dispensing unit 18 for polyurethane foam-forming ingredients so disposed as to spread a layer of said ingredients on the upper surface of the lower sheet and within the edges thereof, dispensing units 5 providing edging strips 6, guides 7 to dispose said edging strips along and in contact with the upper surface or the edges of said lower facing material parallel to the motion of travel and at points intermediate the application of foam-forming ingredients and introduction of the upper sheet. |
