Additives for special effect appearances in plastic parts

Details Additives for special effect appearances in plastic parts Additives for special effect appearances in plastic parts

2004-06-21

2008-12-09

Hug, Eric (Department: 1791)

Plastic and nonmetallic article shaping or treating: processes

Random variegated coloring during molding

By extrusion

C264S122000, C264S123000, C156S244110

Reexamination Certificate

active

07462308

ABSTRACT:
The present invention relates to a method of producing a plank product and related components having a controllable and realistic wood-grain appearance, the planks and related components having at least one accent color, the method including the steps of: a) introducing into an extruder a powdered or pelletized base material and accent color pellets, the base material containing less than about 75% by weight wood flour, and having a vicat softening temperature, the accent color pellets (i) having a higher vicat softening temperature than said base material, and (ii) including a styrene polymer having a high vicat softening temperature and a melt flow index of greater than or equal to 1.0 gram per 10 minutes, and at least one additional resin having a substantially lower vicat softening temperature than the styrene polymer; and b) extruding said base material and the accent color pellets through an extrusion die to form a plank under processing temperatures whereby the accent color pellets cause delayed introduction and controlled dispersion of the accent color into the plank material.

REFERENCES:
patent: 2790202 (1957-04-01), Lorenian
patent: 3704071 (1972-11-01), Muller et al.
patent: 3871629 (1975-03-01), Hishida
patent: 3875088 (1975-04-01), Arons et al.
patent: 3983195 (1976-09-01), Arons et al.
patent: 4048101 (1977-09-01), Nakamachi et al.
patent: 4302410 (1981-11-01), Beach
patent: 4356216 (1982-10-01), Gailey et al.
patent: 4356217 (1982-10-01), Wollam et al.
patent: 4411215 (1983-10-01), Gailey et al.
patent: 4411218 (1983-10-01), Wollam et al.
patent: 4505569 (1985-03-01), Seto et al.
patent: 4528155 (1985-07-01), Elder
patent: 4649008 (1987-03-01), Johnstone et al.
patent: 4810733 (1989-03-01), Sakuma et al.
patent: 5053176 (1991-10-01), Cameron et al.
patent: 5053444 (1991-10-01), Trotoir
patent: 5126088 (1992-06-01), Andres
patent: 5232751 (1993-08-01), Cameron et al.
patent: 5387381 (1995-02-01), Saloom
patent: 5866054 (1999-02-01), Dorchester et al.
patent: 5866639 (1999-02-01), Dorchester et al.
patent: 5869176 (1999-02-01), Dorchester et al.
patent: 5998006 (1999-12-01), Bambara et al.
patent: 2005/0003221 (2005-01-01), Walrath
patent: WO 97/04019 (1997-02-01), None
patent: WO 98/52996 (1998-11-01), None

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