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JP2005047799A Artificial marble using recycled waste material and its manufacturing process 审中-公开
标题翻译：使用回收废物的人造大理石及其制造工艺
公开(公告)号：JP2005047799A
公开(公告)日：2005-02-24
申请号：JP2004219454
申请日：2004-07-28
申请人： Lg Chem Ltd , エルジケミカルリミテッド
发明人： KWON BONG-HYUN
IPC分类号： B29C39/02 , B29B17/00 , B29C45/16 , B29K33/04 , B29K103/04 , B29K105/16 , B29K105/26 , C04B14/36 , C04B18/20 , C04B24/26 , C04B26/06 , C08F2/44 , C08J11/04 , C08K3/00 , C08L33/12
CPC分类号： B29B17/0005 , B29B17/0042 , B29C45/1634 , B29K2033/12 , B29L2031/104 , B29L2031/732 , C04B26/06 , C04B2111/545 , C04B2111/80 , Y02W30/62 , Y02W30/96 , C04B14/06 , C04B14/28 , C04B14/303 , C04B14/304 , C04B18/20 , C04B2103/50 , C04B2103/54
摘要： PROBLEM TO BE SOLVED: To provide an artificial marble, which is a highly value-added product manufactured from a recycled waste of polymethyl methacrylate products having an excellent optical characteristic, and its manufacturing method.
SOLUTION: A recycled waste such as rejects and scraps of a highly transparent polymethyl methacrylate sheet for an industrial use such as a polymethyl methacrylate light guide plate of a liquid crystal display device, which has a refractive index of 1.47-1.53, an average molecular weight of 30,000-150,000, and an excellent optical property, is used for manufacturing the platy artificial marble. The method contains a process for recovering one or more kinds among rejects, scraps, and a processing dust of a highly transparent acrylate sheet for an industrial use and grinding them by a grinder to have a maximum diameter of ≤10 mm, a process for preparing a polymethyl methacrylate syrup which is a basic resin of the artificial marble, a process for preparing a mixture of raw materials having viscosity of about 2,000-20,000 cP, and a process for continuously manufacturing an artificial marble plate with a thickness of ≤1 mm by feeding the mixture of the raw materials into a mold of a continuous molding machine and reacting at 30-100°C for 10-100 minutes.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种人造大理石，其是由具有优异光学特性的聚甲基丙烯酸甲酯产品的回收废料制造的高附加值产品及其制造方法。解决方案：一种再生废物，例如用于工业用途的高度透明的聚甲基丙烯酸甲酯片材的废弃物和废料，例如液晶显示装置的聚甲基丙烯酸甲酯导光板，其折射率为1.47-1.53，平均分子量为30,000-150,000，并具有优异的光学性能，用于制造板状人造大理石。该方法包括用于回收工业用途的高透明丙烯酸酯片材的废料，废料和加工粉尘中的一种或多种的方法，并且通过研磨机将其研磨以具有≤10mm的最大直径，制备方法作为人造大理石的基础树脂的聚甲基丙烯酸甲酯浆料，粘度约为2,000〜200,000cP的原料的混合物的制备方法，以及通过下述方法连续制造厚度≤1mm的人造大理石板的方法将原料的混合物进料到连续成型机的模具中，并在30-100℃下反应10-100分钟。版权所有（C）2005，JPO＆NCIPI

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