Molded article having enhanced aesthetic effect and method and system for making the molded article

US8557158B2 · kind B2 · utility

Assignee

• Sabic Innovative Plastics B.V. · NL

Inventors

• Qingya Shen · Shanghai, CN
• Xin Kong · Beijing, CN
• Shipu Cao · Shanghai, CN
• Narong An · Shanghai, CN
• Jong Min Choi · Maesanno 1-ga, KR
• Shengping Pan · Shanghai, CN

Key dates

• Filing date: Aug 23, 2011
• Grant date: Oct 15, 2013
• Expiry date: Jan 5, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T428/31507
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

Abstract

According to an embodiment, disclosed is a method for making a molded article. The method comprises: locating an insert comprising metal, glass, or combination comprising at least one of the foregoing, in a tooling of a double shot injection molding apparatus; and injection molding, in a first shot on at least a portion of the insert to form a part, a composition. The composition comprises: a) an aromatic polycarbonate (PC) and poly(1,4-cyclohexane dimethylene 1,4-cyclohexanedicarboxcylate) (PCCD), the weight ratio of PC to PCCD being in the range of 30 to 90 PC to 70 to 10 PCCD, b) glass fiber greater than or equal to 0.75 mm in length and the quantity of glass fiber from 1 to 50 wt. % of the composition, and c) the refractive index of the polycarbonate and PCCD closely matching the refractive index of the glass fiber and being in the range of from 1.540 to 1.570. The method further comprises injection molding a thermoplastic material on at least a portion of the part in a second shot. The thermoplastic material of the second shot adheres to at least a portion of the composition of the first shot.