Disclosed herein are a cannabidiol (CBD)-containing bio-based polyurethane composite material and a preparation thereof. The composite material is prepared from a component A and a component B in a weight ratio of 100:(20-50), where the component A includes 40-60 parts by weight of a vegetable oil-based polyol, 35-50 parts by weight of polyether polyol I, 0-10 parts by weight of polyether polyol II, 0.5-5 parts by weight of CBD, 0-5 parts by weight of a natural pigment, 0.5-3 parts by weight of silicon oil, 0-5 parts by weight of a cross-linking agent, 0.2-1 part by weight of a catalyst and 0.8-4 parts by weight of water, and the component B includes 20-50 parts by weight of modified methylene diphenyl diisocyanate (MDI).

A process of stabilizing the activity of an enzyme against inactivation by water weathering are provided including associating one or more polymeric moieties of a polyoxyethylene having a molecular weight of 10,000 Daltons or greater with an enzyme to form a chemically modified enzyme; and dispersing said chemically modified enzyme in a base to form a water-stabilized active coating material.

A degradable EVOH high-barrier composite film, characterized in that the materials of various layers in the composite film all obtain approximately-consistent biodegradability by introducing biomass, and the additive amount of the additive master batch in the materials of each layer is controlled within the range of 0.3-15% of the total mass of the materials of the corresponding layer; the hydrophilic activity of the hydrophilic groups in the additive master batch should be greater than or equal to that of the hydrophilic groups in the materials of each layer; by adding the additive master batch, the mole ratios of the hydrophilic groups to carbon atoms of the materials of various layers tend to be consistent, namely, the bioactivities tend to be consistent, so that the degradation rates of the materials of various layers in the composite film tend to be consistent. The present invention makes contribution to obtaining approximately-consistent bioactivities and approximately-consistent biodegradation rates by balancing the mole ratios of the hydrophilic groups to carbon atoms in the materials of various layers, and the appearance, the functions and the physical and mechanical properties of a product remain unchanged.

A hybrid crude oil and methods of making the same using man-made or natural petroleum-based waste stream products. The hybrid crude oil is composed of an oil-based solution and petroleum-based coatings that were extracted from a petroleum-containing material. This hybrid crude oil is created by elevating the temperature of the oil-based solution to or above an elevated temperature, i.e., the melting or phase-change temperature of the petroleum-based coating so that it can become liquified and dissolve into the oil-based solution and create the hybrid crude oil. The petroleum-containing material is submerged into the heated oil-based solution to cause the petroleum-based coatings to dissolve into the heated oil-based solution at the elevated temperature. The liquid oil-based solution at the elevated temperature creates an environmental seal to the petroleum-based coatings to protect them from burning, carburizing, or degrading, until the liquid oil-based solution is capable of providing the necessary thermal energy for the phase change of the petroleum-based coating from a solid state to a liquid state. At which time, the petroleum-based coatings safely phase-changes into a liquid and dissolves into the oil-based solution, creating the hybrid crude oil.

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).

The present invention provides a resin composition for injection molding that can provide a molded body having excellent thermal stability, excellent thermal fluidity, and high water pressure resistance without a heavy metal such as lead or tin. The present invention also provides a molded body including the resin composition for injection molding. Provided is a resin composition for injection molding containing: a chlorinated polyvinyl chloride; polyvinyl chloride; and a thermal stabilizer, the thermal stabilizer containing a calcium alkyl carboxylate and a zinc compound, the polyvinyl chloride having a degree of polymerization of 400 to 1,000, the resin composition containing the polyvinyl chloride in an amount of 1 to 30 parts by mass relative to 100 parts by mass of the chlorinated polyvinyl chloride.

A chemical composition for use with polyvinyl chloride that may be used to increase the rate at which the polyvinyl chloride breaks down or disintegrates after being discarded as the surface gradually forms defects, holes, or cracks, including when in a landfill, wherein the chemical composition includes the chemicals PBAT, PCL, EVA, CPE, PLA, PGA, PHA, PHB, PE, PVA, PBS, PPC, and PET.

A composition comprising an ethylene/CO interpolymer, formed from a high pressure, free-radical polymerization, and wherein the ethylene/CO interpolymer has the following properties: a) a CO content from “greater than 0” weight percent to less than, or equal to, 10 weight percent CO (carbon monoxide), based on the weight of the interpolymer; and b) a melting point, Tm, in ° C. that meets the following relationship: Tm (° C.)≤601.4*(Density in g/cc)−452.5(° C.).

Acid-functionalized copolymers of methyl methacrylate having relatively high glass transition temperatures and molecular weights may be employed to manufacture articles having high light transmission values, low haze, high heat resistance, and high environmental stability, which are useful as optical protection films, zero-zero optical retardation films, and compensation films as well as lighting pipes and optical imaging lenses.

The present invention is directed to biodegradable sheets and straws formed from a composition comprising a first biodegradable polymer selected from the group consisting of PBAT, PBS, PLA and combinations thereof; and a second biodegradable polymer selected from the group consisting of PBS, PLA, PCL, PBSA, PBAT and combinations thereof, wherein the first biodegradable polymer is different from the second biodegradable polymer and wherein the straws or sheets have a thickness of 100-250 microns.