Process for producing acrylic artificial marble having natural pattern
Patent 8017051 Issued on September 13, 2011. Estimated Expiration Date: 
December 23, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 23, 2023. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3488246 3570056 3923941 Simulated granite and its preparation Process for continuous preparation of synthetic resin plates having irregular flow pattern of different colors Methacrylic resin molding material and method for production thereof Methods for making cast marble objects having superior depth characteristics and color separation Process for producing artificial marble having striped pattern Patent #: 5837175 InventorsAssigneeApplicationNo. 10743056 filed on 12/23/2003US Classes:264/73RANDOM VARIEGATED COLORING DURING MOLDINGExaminersPrimary: Johnson, ChristinaAssistant: Khare, Atul Attorney, Agent or FirmForeign Patent References
International ClassesB29C 69/00B29C 41/22 B29C 47/00 A01N 1/00 AbstractThe artificial marble with good natural pattern and color in accordance with the present invention is prepared mixing ununiformly at least two liquid resins through a line mixer 1, feeding the ununiformly mixed resin on a moving steel belt 4 at a constant speed through a flexible hose 2 and an exit nozzle 3, and reciprocating the exit nozzle perpendicularly to the steel belt by a predetermined program for the exit nozzle to stop at different positions for different durations. The line mixer used in this invention is a Kenics type and has inner elements of eight or less than eight. A line mixer with four to eight elements can be more preferably used.Other References
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