Back to results
US 10,633,506 B2Granted
Reconstituted composite materials derived from waste made by solid state pulverization
OwnerStuart D. Frenkelinventor
Life of this patent
Estimating the term…
Abstract
A method of making polymeric composite particles from polymeric scrap material, virgin polymeric material, or mixtures thereof and glass particles by subjecting a mixture of the polymeric particles and glass particles to a solid state shear pulverization and in-situ polymer compatibilization.
Claims18
A method for preparing reconstituted composite particles from a single bin recycling mixture comprising the steps of:
- a) comminuting said single bin recycling mixture composed of a post-consumer polymeric material contaminated with post-consumer glass scraps, to form a composite mixture comprising glass and polymeric flakes having sharp and angular surfaces;
- b) effecting a chemical change to said composite mixture by application of mechanical energy thereto through solid state shear pulverization in the presence of cooling sufficient to maintain said composite mixture in the solid state during said pulverization to form reconstituted composite particles;
- and
- c) discharging said reconstituted composite particles.
1 more element
A method for manufacturing of a powder of reconstituted composite material from a single bin recycling mixture, said method comprising the steps of:
- a) comminuting said single bin recycling mixture composed of a post-consumer polymeric material contaminated with post-consumer glass scraps, to form a composite mixture including glass and polymeric flakes having sharp and angular surfaces;
- b) introducing said composite mixture into a pulverization device having an inlet for said composite mixture, means for pulverizing said composite mixture to effect chemical change by means of solid state shear pulverization in the presence of cooling sufficient to maintain the composite mixture in the solid state during the pulverization, an outlet for said powder of reconstituted composite material, and means for cooling the temperature of said composite mixture between said inlet and outlet;
- c) cooling said composite mixture to maintain said composite mixture in the solid state without melting within said pulverization device;
- d) pulverizing said solid state composite mixture within said pulverization device to chemically alter said composite mixture;
- and
- e) discharging said powder of reconstituted composite material from said outlet.
3 more elements
Dependencies are inferred from the claim text.