초록 ▼

Polymeric composites are described that can be formed into articles of construction to replace similar articles formed of wood and concrete. The composites comprise a polymer component comprising polyolefins preferably obtained as waste or recycle; a rubbery polymeric component preferably obtained f

Polymeric composites are described that can be formed into articles of construction to replace similar articles formed of wood and concrete. The composites comprise a polymer component comprising polyolefins preferably obtained as waste or recycle; a rubbery polymeric component preferably obtained from disposed tires; and a reinforcing filler component comprising mica. The mica is preferably of the expanded variety to allow for a reduction in density over similar composites containing traditional mica. The evaporation of volatile compounds initially contained within the different components, primarily the rubbery polymeric component, allows for the production of articles of construction having a foamed inner core in which the foamed cell structure has not been achieved through the use of traditional CO.sub.2 generating foaming agents. Processes for forming the articles of construction are provided that include both extrusion and molding techniques.

대표청구항 ▼

[ What is claimed is:] [1.] A polymeric composite comprising:a thermoplastic polymer component comprising a polyolefin, copolymers thereof, or combinations thereof;a rubbery polymeric component comprising particles of which about 90% by weight will not pass through a 100 mesh screen; anda reinforcin

[ What is claimed is:] [1.] A polymeric composite comprising:a thermoplastic polymer component comprising a polyolefin, copolymers thereof, or combinations thereof;a rubbery polymeric component comprising particles of which about 90% by weight will not pass through a 100 mesh screen; anda reinforcing filler component comprising mica rein the polymer component comprises from about 40% to about 75% of the polymeric composite, the rubbery polymeric component comprises from about 4% to about 40% of the polymeric composite, and the reinforcing filler component comprises from about 6% to about 50% of the polymeric composite.