Bio-Based Polyethylene for Sustainable Packaging

Melt-blown nonwoven fabric, electret material, and method to produce electret material using a specific polyethylene resin composition. The composition contains polyethylene, polypropylene, a compatibilizer, and optional additives like nitrogen-containing compounds and fatty acid salts. The polyethylene resin can have a plant-derived component. This composition enables fine fiber melt-blown nonwoven fabric production with reduced environmental impact. The electret material made from this composition has good productivity, charge stability, and environmental benefits. The method involves melt-mixing the polyethylene, polypropylene, compatibilizer, and optional additives.

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Environmentally friendly polyethylene fiber with high uniformity and preparation method. The fiber is made by a modified spinning process using ultra-high molecular weight polyethylene (UHMWPE) with specific molecular weights, a compatibilizer, and a co-solvent. The process involves modifying plant fibers, dissolving the UHMWPE and plant fibers in the co-solvent, adding the compatibilizer, and spinning the solution into fiber. The fiber has improved biodegradability compared to conventional UHMWPE fibers. The co-solvent and compatibilizer help the UHMWPE and plant fibers blend better during spinning, resulting in more uniform fibers.

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Preparing bio-based thermoplastic polyolefin elastomers using bioethylene as the main raw material instead of petroleum-derived ethylene. The method involves fermenting biomass to produce bioethanol, dehydrating it to get bioethylene, and then copolymerizing bioethylene with another olefin in the presence of a catalyst to make the elastomer. This reduces dependence on fossil fuels and emissions compared to conventional elastomer production.

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Preparing bio-based polymer polyols for use in polyurethane foam with improved load-bearing properties and increased bio-content compared to traditional polyols. The polyols are synthesized by in-situ copolymerization of bio-based phenols, amines, and aldehydes in polyacid polyols. This forms solid-containing bio-based polymer polyols that can be directly used in foam production without separate curing. The bio-based thermoset benzoxazine particles in the polyols provide better foam load-bearing compared to traditional polyols.

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Resin compositions, molded articles, laminates, and laminated tubes containing biomass-derived polyolefins for improved heat seal strength and moldability compared to conventional fossil fuel-derived plastics. The compositions have specific ratios of biomass-derived low-density polyethylene (LDPE), linear low-density polyethylene (LLDPE), and modified polyolefins. The LDPE and LLDPE are biomass-derived, the LLDPE has a density range, and the modified polyolefin is derived from compound grafting. This composition balance provides excellent heat sealing and molding properties for applications like food packaging, laminates, tubes, films, and containers.

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Easily biodegradable polyethylene material that degrades faster than conventional polyethylene due to the addition of natural components that accelerate biodegradation. The polyethylene composition contains a specific blend of polymers, waxes, and biodegradable polymers. The blend includes linear low density polyethylene (LLDPE), polyethylene wax, ultra-high molecular weight polyethylene (UHMWPE), halohalose beeswax complex, microcrystalline cellulose, polyethylene glycol, and polylactic acid. The biodegradable components like halohalose and seaweed collagen provide nutrition for microbes to degrade the plastic, while the LLDPE and UHMWPE provide mechanical strength.

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Propylene-based polymer composition with biomass content for making molded articles that have high rigidity, impact resistance and do not crack even when containing biomass polyethylene. The composition contains a block copolymer of propylene and ethylene/alpha-olefins, a random copolymer of propylene/ethylene/alpha-olefins, and biomass polyethylene. The block copolymer has specific ethylene content and melt flow rate, the random copolymer has specific ethylene/alpha-olefin content and melt flow rate, and the biomass polyethylene has specific content. This composition improves miscibility between the block copolymer and biomass polyethylene to prevent cracking.

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Propylene-based polymer composition with biomass content of 8.4-49% that provides molded articles with good rigidity and impact resistance without cracking. The composition contains 51-95 wt% of a propylene block copolymer and 5-49 wt% biomass polyethylene. The propylene block copolymer has specific ethylene and α-olefin content and melt flow rate. This composition allows mixing biomass polyethylene into propylene polymers without compromising properties.

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Resin composition for molded products that suppresses die drool formation when biodegradable polymers are used. The composition contains a specific blend ratio of a low-density bio-polyethylene resin, an ethylene-vinyl alcohol copolymer (EVOH), and additional components like ethylene-vinyl acetate copolymer or acid-modified polymer. The blend ratio is 10-49 parts bio-polyethylene to 51-90 parts EVOH. This prevents die drool during extrusion and improves molded product appearance when using biodegradable polymers.

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Green polyethylene wax for use in various applications like hot melt adhesives, coatings, cosmetics, and inks. The green polyethylene wax contains ethylene derived from renewable sources like plants, rather than fossil fuels. This provides a way to make these products more sustainable by using biobased components. The green polyethylene wax can be used in amounts ranging from 2-25% in the final product, depending on the application.

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Compostable and biodegradable bioplastic made from earth-based plant materials that can replace petroleum-based plastics. The bioplastic composition is a blend of finely powdered components like green ethanol-based polyethylene, calcium carbonate, hemp hards, thermoplastic starch, biodegradable additives, and soy protein. The components are dry-mixed without heat to uniformly blend them into a compostable and biodegradable resin. The bioplastic is strong, flexible, moisture-resistant, and compostable/biodegradable after use. It can replace petroleum plastics in food packaging, films, and containers without harming the environment.

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Producing high density polyethylene (HDPE) with a reduced carbon footprint by using bio-based feedstocks instead of fossil fuels. The bio-based HDPE can have a density of 0.92 g/cm3 or greater and a molecular weight of 300,000 g/mol or more. The bio-based feedstocks can be converted into ethylene and then used to make the HDPE. The bio-based content of the HDPE can be tracked using a mass balance approach. The bio-based HDPE has a lower carbon footprint and can even be carbon neutral or carbon negative.

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Biomass-based polyesters that have improved properties compared to conventional polyolefins like LDPE while also being biodegradable. The polyesters are made by copolymerizing biomass-based diols like 1,5-pentanediol with biomass-based dicarboxylic acids. The resulting polyesters have melting temperatures and mechanical properties similar to LDPE. The biomass-based components enable biodegradation. The polyesters can be used as drop-in replacements for LDPE in thin film packaging applications due to similar processing properties.

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Biodegradable, biocompostable, and biodigestible plastic made by chemically bonding peptides, enzymes, proteins, and other additives to polyethylene. This improves the biodegradability of the plastic without compromising its physical strength. The composition has a molecular weight of at least 7000. The additives like citric acid, lactic acid, hydrolyzed tallow, yeast, and carboxy methyl cellulose accelerate biodegradation. The plastic can be processed into films for applications like carry bags and agricultural mulch that decompose in the environment.

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Pyolysis recycle ethylene composition ("pr-ethylene") derived directly or indirectly from pyrolysis, vaporization and/or solvolysis of waste plastics, to produce a polyethylene effluent comprising r-polyethylene. The composition includes steps identifying a recycle value obtained from the pyrolysis recycle fraction obtained in step (i) or (ii), the POX vaporized recycle fraction fraction and/or the solvolysis recycle fraction, communicating to a third party that the r-polyethylene has recyclables or is obtained or derived from waste plastics, and supplying the r-polyethylene to a polyethylene manufacturing facility via the supply system.

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Degradable modified polyethylene material with improved mechanical properties and biodegradability compared to existing degradable polymers. The material is prepared by melt blending linear low density polyethylene (LLDPE), starch, chitosan, plant fiber, shell powder, and a silane coupling agent. The plant fiber, shell powder, and coupling agent enhance the mechanical properties without affecting degradability. The plant fiber provides high strength and specific strength. The coupling agent improves interfacial binding between the fillers and polyethylene. The starch adds biodegradability. The silane coupling agent helps compatibility. The blended material has higher strength and elongation compared to LLDPE alone, while still being fully biodegradable.

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Earth-plant based biodegradable and compostable resin composition for producing bioplastics that replaces petroleum-based plastics. The resin composition uses soil-based materials like calcium carbonate, starch, and hemp tow mixed with green ethanol-based polyethylene and biodegradation additive. The soil-plant resin can be used to make bioplastics that are compostable, biodegradable, and non-toxic. The resin composition can be produced by grinding the copolymers into fine powders and mechanically mixing them.

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A biodegradable resin composition for films that provides improved compatibility and mechanical properties compared to conventional biodegradable plastics. The composition contains 10-70 wt% polyethylene, 10-60 wt% biodegradable resin, and 10-50 wt% of either PBAT or maleic anhydride copolymer. The blend composition can be produced by melt blending the components. The composition allows better dispersibility and compatibility of the biodegradable resin in the polyethylene matrix while maintaining mechanical properties. The biodegradable films made from this composition have applications in industries, food, agriculture, and daily life.

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Resin composition for adhesive applications containing a biomass-derived polyolefin and a fossil fuel-derived polyolefin. The composition has comparable adhesion properties to traditional fossil fuel-based resins but uses biomass-derived ethylene as a raw material. The biomass-derived polyolefin is obtained by polymerizing mainly biomass-derived ethylene. The fossil fuel-derived polyolefin contains a modified polyolefin grafted with compounds like maleic anhydride. The biomass-derived polyolefin makes up at least 50% by mass of the composition. The biomass-derived ethylene content in the biomolecule can be adjusted to balance properties like melt flow rate and adhesion. The composition can be used in molded articles, laminates, and bottles

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Degradable biomass particle for plastics applications that can rapidly biodegrade without causing excessive waste accumulation. The particle composition is a mix of polyethylene, biomass additives, light suppressants, antioxidants, and dispersants. Adding biomass improves biodegradability, but light suppressants prevent premature degradation in normal conditions. The mixed compound is extruded and dried to form the degradable biomass particles. The particle composition balance allows biodegradation without excessive waste generation.

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