Artificial scenic rock and its manufacturing method

Details Artificial scenic rock and its manufacturing method Artificial scenic rock and its manufacturing method

1993-08-20

1995-07-25

Epstein, Henry F.

Plastic and nonmetallic article shaping or treating: processes

Pore forming in situ

By gas forming or expanding

264220, 428 15, B44F 904

Patent

active

054359490

ABSTRACT:
An artificial scenic rock made using a die-casting process and from a water-curable material such as cement or gypsum, water, and a polymer-based foaming agent. The artificial scenic rock is made first by spraying a color primer on the inner surface of a die casting mould. Then a filler, which was prepared by first mixing about 0.1 to 1 part of the polymer-based foaming agent with about 30 to 60 parts of water in an agitator then adding about 100 parts of the water curable water material while under agitation, is poured into the die casting mould. After hardened and released from the die casting mould, the final product has a natural rock-like color with appropriate texture and features similar to those of a real rock. The polymer-based foaming agent allows the artificial scenic rock of the present invention to be a solid and thus assumes better resemblance of a real rock, but with substantially reduced weight. The color primer layer prevents air bubbles and/or cavities to be exposed on the surface of the artificial rock.

REFERENCES:
patent: 3924037 (1975-12-01), Sullivan
patent: 3950477 (1976-04-01), Di Giacomo
patent: 4085246 (1978-04-01), Buser et al.
patent: 4734302 (1988-03-01), Baskin
patent: 4847026 (1989-07-01), Jarboe et al.

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