Plastic and nonmetallic article shaping or treating: processes – Mechanical shaping or molding to form or reform shaped article – To produce composite – plural part or multilayered article
Patent
1974-12-23
1976-05-18
Kucia, Richard R.
Plastic and nonmetallic article shaping or treating: processes
Mechanical shaping or molding to form or reform shaped article
To produce composite, plural part or multilayered article
264246, 264247, 264258, B29C 900
Patent
active
039579433
ABSTRACT:
A method for producing glass fiber reinforced plastic molded articles with decorative patterns thereon is provided, which method includes the steps of placing at least two kinds of differently colored sheet molding compound (SMC) mat layers on a stationary mold, each of the SMC mats including glass fibers impregnated with resin, the resin in each of the SMC mats including different colorants, the area of each SMC mat layer occupying less than the total effective molding surface area of the stationary mold surface, disposing a movable mold in engagement with the stationary mold with the SMC mat layers interposed between such molds, and applying heat and pressure to the molds so as to fluidize and polymerize and cure the resin in the SMC mats. When fluidized, the two kinds of differently colored mats are mingled with each other to form flow patterns comprised of the distinct colors of each of the mats. Inasmuch as the total area of each of the SMC mat layers occupies less than the total effective molding surface area of the stationary mold, there will be sufficient space between the stationary mold and movable mold to allow the resin in each SMC mat layer when heat and pressure are applied thereto, to flow and fill the remaining space between the molds and be mingled with resin from the other SMC mats to form flow patterns of the colors of the mats. The final article produced will thereby include a decorative pattern of colors on at least one surface thereof.
REFERENCES:
patent: 2565941 (1951-08-01), Wellman
patent: 2618019 (1952-11-01), Orsini
patent: 2688580 (1954-09-01), Fingerhut
patent: 2956916 (1960-10-01), Voss
patent: 3101994 (1963-08-01), Hartmann
patent: 3198686 (1965-08-01), Caligari
patent: 3730808 (1973-05-01), Fekete
Kucia Richard R.
Nippon Gakki Seizo Kabushiki Kaisha
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