Richard Albert Cooper is a notable inventor based in Virginia Beach, VA (US). He has made significant contributions to the field of polymer science, particularly in the development of styrenic resin compositions. With a total of 2 patents to his name, Cooper's work has implications for various applications, including food packaging.

Latest Patents

Cooper's latest patents include a styrenic resin composition and articles produced therefrom. This innovative resin composition comprises a rubber modified styrene maleic anhydride copolymer and polybutene. The preparation methods for this resin involve adding polybutene into the reactor or incorporating it into the syrup exiting the reactor before entering the devolatilizer. The polybutene content ranges from 0.1 to 8% by weight, with a number average molecular weight between 900 and 2500. The rubber content varies from 4% to 20% by weight, with particle sizes from 0.1 micron to 11 microns. This resin can be extruded into sheets and thermoformed into articles, such as containers for packaged foods that can be heated in microwave ovens, offering improved toughness, elongation, and heat distortion resistance properties.

Another significant patent is for a transparent high impact alloy. This polymer alloy consists of 90 to 20 weight percent of a brittle polymer with a weight average molecular weight greater than 180,000, along with rubbery and ductile polymers. The brittle polymer can have molecular weights ranging from 220,000 to 400,000. In one preferred embodiment, the brittle polymer is a copolymer of styrene and methyl methacrylate, while the ductile polymer is a styrene butadiene block copolymer. The notched IZOD impact strength of this alloy ranges from 1.0 to 6.0 ft-lb./in., with a haze of less than 1.5% or between 1 and 4%.

Career Highlights

Richard Albert Cooper is currently employed at Nova Chemicals Inc., where he continues to innovate in the field of polymer technology. His work has not only advanced the understanding of styrenic resins but has also contributed to the development of materials with enhanced properties for various applications.

Collaborations

Cooper has collaborated

Profile summary based on public USPTO records.

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