Coating processes – Particles – flakes – or granules coated or encapsulated
Reexamination Certificate
2005-04-12
2005-04-12
Tsoy, Elena (Department: 1762)
Coating processes
Particles, flakes, or granules coated or encapsulated
C427S213000, C427S213300, C427S213310, C427S222000, C427S242000, C427S372200, C427S384000, C427S385500, C427S393500, C427S421100, C427S422000, C427S424000, C118S056000, C118S057000, C118S058000, C118S300000, C118S303000, C118S313000, C118S315000, C118S316000, C118SDIG005, C366S336000, C366S341000, C366S173200
Reexamination Certificate
active
06878400
ABSTRACT:
A method for continuously introducing a substance in liquid phase into plastics granules comprising: a) feeding a substantially continuous flow of the plastics granules to at least one substantially static spraying chamber, b) spraying the substance in liquid phase onto the plastics granules, c) passing the granules partially or totally coated by the substance in liquid phase by a substantially static mixing means supported in at leas one mixing chamber provided downstream of the spraying chamber, d) submitting the mixed granules to drying for a time sufficient to allow a substantially complete absorption of the substance in liquid phase by the granules.
REFERENCES:
patent: 3880803 (1975-04-01), Keizer
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patent: 4035322 (1977-07-01), Tate et al.
patent: 4191480 (1980-03-01), Hiorth
patent: 5076988 (1991-12-01), Rifi
patent: 6186658 (2001-02-01), Nishida et al.
patent: 19 40 907 (1969-08-01), None
Colombo Giuseppe
Del Brenna Marcello
Folcini Pierluigi
Pozzati Giovanni
Finnegan Henderson Farabow Garrett & Dunner L.L.P.
Pirelli Cavi e Sistemi S.p.A.
Tsoy Elena
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