Abstract: A spatially-resolved spectrometer is used to measure streaking in molded sample plastic parts produced using a molding tool with various mold inserts which produce certain desired topological surface features upon these sample plastic parts. The measurements from one or more of these sample plastic parts are then provided to a computerized device which appropriately filters the data and calculates overall data shape, average peak and valley shift, and a quality number indicative of data slopes. These calculations are then used to determine an optimum set of ingredients and processing conditions to be used for the full-scale plastic part production.

Abstract: Predicting material color shifts due to weathering. A color formulation tool determines the concentration of colorants from a color standard. The color formulation tool obtains weathered optical parameters for the color standard from a color database and predicts the color of the color standard from the colorant concentrations and weathered optical parameters.

Abstract: Predicting material color shifts due to weathering. A color formulation tool determines the concentration of colorants from a color standard. The color formulation tool obtains weathered optical parameters for the color standard from a color database and predicts the color of the color standard from the colorant concentrations and weathered optical parameters.

Abstract: Using the molding tool (2), spatially-resolved spectrometer (1) and computerized device (101) of U.S. patent application Ser. No. 09/303,409, streaking problems identified in production are first diagnosed (140), then duplicated on a laboratory scale (142) and compared with the streaking problems observed in production. Next, options are developed and tested for fixing (correcting) the observed problem and testing these on a laboratory scale (144). Finally, the option(s) chosen for correcting the observed problem are validated prior to reinitiating full-scale production (146).

Abstract: A method and system for introducing a new supplier into a product design and manufacturing system. Once it has been decided that a need exists and that a new supplier should be investigated for introduction, a plurality of supplier and project information is received through a systematic series of stages, milestones and checklists. A variety of milestone and checklist items are completed for each stage and relevant documentation is received and reviewed. A stage tollgate is then conducted, wherein it is determined whether the project should advance into the next stage. If a stage approval is received, the various milestones and checklists corresponding to the next stage are undertaken. By progressing through all stages, all required information is shared rapidly and efficiently and creates a system of record for new supplier introduction which may be subsequently searched and referenced.

Abstract: A light resistant polymer composition useful for molding applications is provided. The polymer composition comprises a blend of polycarbonate resin with a graft copolymer resin and an acylated sterically hindered amide. The compositions have improved physical properties as compared to compositions containing hindered amine light stabilizers.