Heat Distortion Temperature Modification Of Rigid PVC And Chlorinated PVC: A Method To Produce Low Smoke Compositions

The use of a new low smoke, heat distortion temperature modifier for rigid PVC and chlorinated PVC is discussed. This material, CN-1427, is a tetrabromobisphenol A carbonate oligomer which is compatible with vinyl compositions. The carbonate oligomer can be compounded into PVC resin to improve heat distortion temperature of PVC and CPVC by 20–30°C. Unlike conventional HDT modifiers, brominated carbonate oligomers do not increase smoke evolution during flammability testing. Thus, using carbonate oligomer technology, it is possible to achieve low smoke, Class I (ASTM E-84) and V-O flammability (UL-94) performance. Vinyl compositions, modified with the carbonate oligomer described in this work, can be utilized as an alternative to expensive engineering thermoplastics. This paper reports recent studies on the use of carbonate oligomers as heat distortion temperature modifiers for low smoke vinyl applications. Formulation information addressing flammability and physical property performance is presented in detail.

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Heat Distortion Temperature Modification Of Rigid PVC And Chlorinated PVC: A Method To Produce Low Smoke Compositions, E. J. Termine, Journal of Vinyl Technology, 12, 204-207 (1990), DOI: 10.1002/vnl.730120405.
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Dr. Enrico J. Termine is a senior executive and scientist with thirty years of experience in business leadership, research & development, product engineering, marketing, and manufacturing. He has consulted for a variety of industrial and legal clients on engagements involving valuations, due diligence assignments, market research reports, strategy development reports, science and technology assessments, and root cause investigations. Dr. Termine is a bromine chemistry expert. He specializes in oilfield applications, flame retardant plastics, industrial and recreational water treatment and disinfection, specialty and fine chemicals, polymer additives, plastics, and organic synthesis for life science molecules and advanced materials. Dr. Termine earned both his Bachelor of Science in Chemistry and his Ph.D. in Organic Chemistry from the University of Miami. He has collaborated on more than 38 patents and publications. His technical contributions are useful in consumer electronics; for petroleum and petrochemical processing; in transportation and industrial products; in healthcare; for industrial and household disinfection; and in building and construction materials.

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