Method of forming improved matted surface-finished article by us

Details Method of forming improved matted surface-finished article by us Method of forming improved matted surface-finished article by us

1994-09-20

1997-06-17

Watkins, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Continuous and nonuniform or irregular surface on layer or...

428 79, 428156, 428161, 428172, 428352, 428343, 428347, 428914, 264257, 264266, 264274, 264316, 156232, B29C 4514, B32B 330

Patent

active

056395361

ABSTRACT:
An in-mold molded product includes a molded plastic member having projections and recesses on a surface thereof and a transfer layer provided on such surface. The outer surface of the transfer layer has a contour corresponding to the projections and recesses of the plastic member and additionally has projections and recesses that are finer than those on the surface of the plastic molded member. Thus, the finished product has a matte surface with good wear characteristics. The product is molded by arranging a mat transfer member at a predetermined region of a cavity of a mold unit, the mat transfer member having the fine projections and recesses on one surface thereof, and a portion of the mold unit defining the cavity having, at the predetermined region, projections and recesses which are larger in size than those of the mat transfer member. Plastic is injected into the cavity in a direction to urge the mat transfer member against the portion of the mold unit having the larger projections and recesses thus molding the molded product.

REFERENCES:
patent: 4160798 (1979-07-01), Price et al.
patent: 4183991 (1980-01-01), Smiley et al.
patent: 4229497 (1980-10-01), Piazza
patent: 4544578 (1985-10-01), Duane, Jr.
patent: 4925728 (1990-05-01), Crass et al.
patent: 5000990 (1991-03-01), Freeman

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