RECLAIMED RESIN COMPOSITION OBTAINED FROM PULVERIZED WASTE PLASTIC MATERIAL CONTAINING SOLID FOREIGN MATTER

• Main Authors: KITA YASUO, AKAHO TATSUFUMI, AKAGAWA TOMOHIKO, NOZAKI MASASHI
• Format: Patent
• Language: English
• Published: 20.01.2011
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATERTREATMENT OR WASTE MANAGEMENT; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION; TECHNICAL SUBJECTS COVERED BY FORMER USPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

PROBLEM TO BE SOLVED: To provide a resin composition which can produce a synthetic resin product having no default in its appearance, by the use, as a raw material, of a waste plastic material containing, as a primary component, a thermoplastic resin having a small amount of insoluble solid foreign matter incorporated therein.SOLUTION: A reclaimed resin composition obtained by incorporating a light shielding component into a pulverized product of a waste plastic material containing a primary amount of a thermoplastic resin and a small amount of non-thermoplastic solid foreign matter, and melting the resultant mixture by heating, wherein a sheet prepared from the reclaimed resin composition exhibits lightness and light transmittance having a relationship represented by the following formula: (A×B)≤4,000 [wherein A represents lightness (%) of a sheet prepared from the resin composition having a thickness of 3 mm, and B represents a total light transmittance (%) of a sheet prepared from the resin composition having a thickness of 50 μm].