Iowa State University Research Foundation Inc

Cal Poly Corporation

Other

California Polytechnic Corporation

Dialogr Systems, LLC

Jeffrey E Danes

Greg Curtzwiler

Keith Vorst

John Wyatt Brown

Keith L Vorst

Phil Costanzo

The present invention relates to relates to a method of optimizing a plastic composition formed from a plurality of resin feedstocks. A plurality of resin feedstocks are provided. The plurality of resin feedstocks are blended to form the plastic composition. One or more properties of the plastic composition, including radiation absorption, radiation transmission, gas evolution, radiation fluorescence, or melting properties, are measured. The ratio of the plurality of resin feedstocks being blended into the plastic composition is adjusted, based on said measuring, to form an optimized plastic composition. A system for performing the method is also disclosed.

Method for optimizing plastic compositions used in packaging to increase shelf-life of perishable products and a system thereof

A system and a method for determining a percentage of recycled polyethylene terephthalate present in a test sample includes selecting a contaminant from a set of known contaminants. At least one predictor analyzes is identified from a group of predictor analyzes as being a statistically independent predictor analyzes of a presence of the selected contaminant. Predicting a percent recycled polyethylene terephthalate, identifying at least one set of best subsets of the statistically independent predictor analyzes of percent recycled polyethylene terephthalate and refining a percent recycled polyethylene terephthalate statistical model to a final predicted percent recycled polyethylene terephthalate model.

Systems and methods for determining recycled thermoplastic content

A method including steps of providing at least one sensor; detecting a plurality of parameters in a thermoplastic using the at least one sensor; generating a plurality of outputs in response to the detecting; and characterizing a contaminant or a percentage of post-consumer recycled thermoplastic content in the thermoplastic as a function of the plurality of outputs having been generated and a thermoplastic pattern signature.

Detection in thermoplastics

A system and method of identifying a reference standard library for thermoplastic content includes preparing a plurality of samples of each one of a plurality of known ratios of virgin thermoplastic/recycled thermoplastic, analyzing each of the plurality of samples of each one of the plurality of known ratios of virgin thermoplastic/recycled thermoplastic with at least one of a group of analyses consisting of: a differential scanning calorimetry analysis; a physical thickness analysis; an ultraviolet-visible spectroscopy analysis; an attenuated total reflectance Fourier transform infrared spectroscopy analysis; a mechanical analysis; or a plasma atomic emission spectroscopic analysis. The method is also comprised of selecting a contaminant, identifying a first plurality of indicators output from the at least one of the group of analyses, identifying a second plurality of indicators from the first plurality of indicators, the second plurality of indicators being independent of the selected contaminant and optimizing the second plurality of indicators to identify a third plurality of indicators, the third plurality of indicators being quantitatively different of the selected contaminant wherein each one of the third plurality of indicators has at least one corresponding value for each one of the plurality of known ratios of virgin thermoplastic/recycled thermoplastic. Systems and methods for determining content of recycled thermoplastic in a thermoplastic sample are also disclosed.

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San Luis Obispo, CA, United States of America

Jeffrey E Danes