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<h1>Synthetic resins defined as high molecular weight polymeric materials used in plastics industry, not textile manufacturing</h1> The term 'resin' originally referred to natural products but now encompasses synthetic substances. Webster's Dictionary defines synthetic resins as high molecular weight synthetic products with physical properties similar to natural resins but chemically different, used in plastics, coatings, and adhesives. The British Plastics Year Book describes them as chemically produced polymeric materials classified by initial reacting materials or chemical composition. Legal authorities note that 'synthetic resin' is primarily used in the plastics industry for unfabricated materials, not in textile manufacturing, making the term scientifically imprecise and contextually dependent on industrial application.