Back to results
US 12,576,561 B2Granted
PVC infused composite products
AssigneeContinuus Materials Intellectual Property, LLC
InventorsJack G. Winterowd, Matthew Spencer
Life of this patent
Estimating the term…
Abstract
A method of manufacturing a product includes forming a first mixture of PVC fragments and cellulosic fragments, heating the first mixture at a temperature and duration sufficient to melt at least a portion of the PVC fragments, and cooling the first mixture until the melted PVC fragments resolidify.
Claims27
A method of manufacturing a product, the method comprising:
- disintegrating PVC elements to form PVC fragments;
- disintegrating cellulosic elements to form cellulosic fragments;
- calculating an amount of at least one alkaline sequestering agent based on an amount of the PVC fragments, wherein the amount of the at least one alkaline sequestering agent exceeds an amount needed to stoichiometrically neutralize hydrogen chloride expected to be emitted by the PVC fragments during heating;
- forming a first mixture of the PVC fragments, the cellulosic fragments, the at least one alkaline sequestering agent, and at least one tackifying agent configured to maintain uniform distribution of the at least one alkaline sequestering agent throughout the first mixture;
- heating the first mixture at a temperature and duration sufficient to melt at least a portion of the PVC fragments and to cause the at least one alkaline sequestering agent to react with hydrogen chloride emitted from the PVC fragments to form a salt;
- and
- cooling the first mixture until the melted PVC fragments resolidify.
4 more elements
A method of manufacturing a product, the method comprising:
- disintegrating PVC elements to form PVC fragments;
- disintegrating cellulosic elements to form cellulosic fragments;
- calculating an amount of at least one alkaline sequestering agent based on an amount of the PVC fragments, wherein the amount of the at least one alkaline sequestering agent exceeds an amount needed to stoichiometrically neutralize hydrogen chloride expected to be emitted by the PVC fragments during heating;
- mixing the PVC fragments, the cellulosic fragments, the at least one alkaline sequestering agent, and at least one tackifying agent to form a mixture, wherein the at least one tackifying agent is configured to maintain uniform distribution of the at least one alkaline sequestering agent throughout the mixture;
- heating the mixture at a temperature and duration sufficient to melt at least a portion of the PVC fragments and to cause the at least one alkaline sequestering agent to react with hydrogen chloride emitted from the PVC fragments to form a salt;
- and
- cooling the mixture until the melted PVC fragments resolidify.
4 more elements
Dependencies are inferred from the claim text.