Patent classifications
C08J2327/06
METHOD FOR RECYCLING POLYVINYL CHLORIDE (PVC) TO PRODUCE HIGH DENSITY POLYETHYLENE (HDPE)
Disclosed herein is a process to convert PVC plastic into a dechlorinated polymer, such as high density polyethylene, while substantially avoiding carbonization. The process also facilitates Cl recovery and/or reintroducing the dechlorinated plastic into product streams. In some embodiments, the process comprises heating a mixture of PVC and a catalyst and/or a base in a solvent, optionally in the presence of hydrogen gas.
ACOUSTICAL THERMAL DECOUPLING SYSTEM
The present invention relates to an acoustical and thermal decoupling system (10) in a form of a polymer tape that includes a closed-cell foam layer (12) having a front side and a reverse side, a pressure sensitive adhesive (14) coated on the reverse side of the closed-cell foam layer (12), and a release liner (16) covering the pressure sensitive adhesive (14) on the reverse side of the closed-cell foam layer (12). The acoustical and thermal decoupling system (10) may be installed directly to a structural member of a building by removing the release liner (16) from the reverse side of the closed-cell foam layer (12) and pressing the reverse side of the closed-cell foam layer (12) against the structural member, allowing the pressure sensitive adhesive (14) to bond the closed-cell foam layer (12) directly to the structural member.
METHOD FOR PRODUCING A STABILIZER COMPOSITION, AND STABILIZER COMPOSITION PRODUCED USING SAID METHOD
A method for producing a stabilizer composition for a polymer and a stabilizer composition produced by the method. At least one carboxylic acid is reacted with at least one metal compound, such as at least one metal hydroxide and/or at least one metal oxide and/or at least one metal carbonate, thereby forming a metal carboxylate of the carboxylic acid. The reaction of the carboxylic acid with the metal compound is carried out in a continuous manner in an extruder while reaction water being formed is discharged out of the extruder.
ION-SELECTIVE MEMBRANE, ION-SELECTIVE ELECTRODE, ION SENSOR, SPECIMEN TESTING DEVICE, AND COMPLEX COMPOUND
Provided is a high-stability ion-selective membrane (ISM) containing a thallium porphyrin complex as an ionophore, the ISM containing: a compound represented by the following formula (1); a polymer; and a membrane solvent.
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COATING FOR MEDICAL DEVICES
A coating for a medical device is described. The coating comprises: a surface layer; and optionally a base layer; wherein the surface layer comprises a polymer chain attached to an anti-clotting group, wherein the anti-clotting group is selected from a sulfonic acid group, a sulfonamide group, a sulfamic acid group, a hydrogen sulfate group and a conjugate base thereof. Also described is a medical device comprising the coating, and uses and methods involving the coating and the medical device.
Decorative Panel, and Decorative Floor Covering Consisting of Said Panels
The invention relates to a panel, in particular a decorative panel, a floor panel, a ceiling panel or a wall panel. The invention also relates to a covering consisting of a plurality of mutually coupled panels according to the invention, in particular a floor covering consisting of a plurality of mutually coupled panels, according to the invention.
POLYMERIC COMPOSITION CONTAINING A PHASE CHANGE MATERIAL
A polymeric composition containing at least one polymer and halloysite nanotubes is disclosed. At least a portion of the halloysite nanotubes is loaded with a phase change material and each of the loaded halloysite nanotubes contains at most one kind of phase change material. In addition, a preparation method and use of the polymeric composition are further provided.
Process for producing monovinylaromatic polymer incorporating post-consumer recycled polystyrene, monovinylaromatic polymer incorporating post-consumer recycled polystyrene and articles produced thereof
The invention relates to a process and an installation to produce a monovinylaromatic polymer (3) comprising post-consumer recycled polystyrene (PCR-PS) wherein the process comprises the steps of mixing the PCR-PS (5) and the monovinylaromatic monomer (7) within a dissolver (9) to dissolve the PCR-PS (5) in the monovinylaromatic monomer (7) so as to produce a polymerization mixture (13); and a step of filtering the polymerization mixture (13) that includes continuously redirecting at least a part of the stream of the filtered polymerization mixture (17) back to the dissolver (9) and mixing it with the polymerization mixture (13) so as to continuously reduce the content of insoluble material in the polymerization mixture (13) contained in the dissolver (9).
Systems and methods for producing durable, dimensionally stable, extruded sheet goods having a desired specific gravity
The present invention provides a system, method, and apparatus for producing a dimensionally stable extruded board product for use in surface coverings. The board product may be a basalt casting powder-based product for use as a substrate for wall or other surface coverings or may be used as a core layer in a modular floor covering unit. The modular floor covering unit comprises multiple layers. The layers are a thin cut stone veneer layer, a core layer with a density similar to that of the thin cut stone veneer layer, and an optional magnetically receptive underlayment layer. Other layers or combinations of layers may also be used.
FUNCTIONALIZED PROCESS AID BLENDS FOR CELLULAR PVC
A method of reducing foamed density that results in a foamed polyvinyl chloride (PVC) component exhibiting reduced density. The foamed PVC component contains at least a PVC resin and a process aid blend. The process aid blend contains from 1 weight % to 60 weight % (based on the weight of the blend) of a functionalized process aid, and from 99 weight % to 40 weight % (based on the weight of the blend) of a non-functionalized process aid. The functionalized process aid includes at least one base polymer functionalized with a reactive epoxy, hydroxyl, β-keto ester, β-keto amide, or carboxylic acid functional group. The foamed PVC component containing the process aid blend has a lower density than a reference foamed PVC component made using the same process conditions and additives, but which contains only non-functionalized process aid and not the functionalized process aid.