polymerguru

CJ Biomaterials, Inc., a division of South Korea-based CJ CheilJedang and a primary producer of #polyhydroxyalkanoate (PHA) biopolymers, has partnered with #DongsungChemical to introduce the first PHA-based hotmelt adhesive available in the US market. Designed for packaging applications, the #ECOVIVA® Hotmelt Adhesive is optimized for cosmetics packaging, household goods, electronics, and other consumer packaging, and it effectively bonds challenging substrates, including paper to aluminum and paper to acrylonitrile butadiene styrene ( #ABS ). ECOVIVA® Hotmelt Adhesive is formulated with biomass content, including CJ Biomaterials’ proprietary amorphous #PHA biopolymer, PHACT™ A1000P. The adhesive is designed to significantly reduce CO2 emissions compared to conventional #polyisobutylene (PIB) adhesives, and ethylene vinyl acetate (EVA) adhesives. The adhesive has also received DIN CERTCO (Germany) biobased certification. This adhesive offers high cold resistance and enables adhesi...

Toray Industries has developed a new #polyesternyloncompositefiber containing “at least 93 percent recycled material” by mass, overcoming some of the technical difficulties involved in combining recycled polymers while maintaining consistent material quality. The Japanese materials company says both the polyester and nylon components of the new fiber incorporate recycled raw materials. The 93 percent figure applies to the total weight of the newly developed raw yarn and not to finished fabrics or garments, whose recycled content will vary depending on their composition. Composite fibers are commonly used to give textiles particular textures, visual characteristics and functional properties. However, combining different polymers makes it more difficult to incorporate large proportions of recycled materials without affecting quality. #Toray says it addressed that problem using its expertise in polymer design and composite spinning, including technologies developed through its &+ re...

  Today's KNOWLEDGE Share Extrusion barrel design has long been constrained by manufacturing limitations as much as by processing requirements. Additive manufacturing changes that equation. By enabling corrosion-resistant super alloys to be applied precisely where the process requires them — at the discharge end, injection ports, or other high-exposure regions — engineers are no longer forced to treat corrosion protection as a uniform requirement along the entire barrel. The implications extend beyond material placement: - Pressure transducers, melt temperature sensors, and injection ports can be positioned where process conditions demand them, not where conventional construction allows - Versatile corrosion-resistant feedstock, independent of barrel diameter or geometry, reduces lead times and procurement complexity - The same manufacturing approach scales across laboratory extruders to large production systems As the article frames it, this represents a shift from designing barre...

Bcomp, a Swiss pioneer in high-performance flax composites, has partnered with Polestar to bring its lightweight bio-based materials into the new Polestar 5 four-door electric grand tourer (GT). The vehicle features Bcomp’s ampliTex™ and powerRibs™ technologies in the front seatbacks and tailgate structure, reducing the use of virgin plastics. The collaboration began during the development of the Polestar Precept, a concept car and evolved into large-scale production for the Polestar 5. Together, the companies developed a bespoke ampliTex flax fabric known as the “Polestar Signature Weave”, designed to serve both structural and aesthetic functions in the interior cabin. This material has since become a defining feature of Polestar’s minimalist and transparent design language, engineered and tested for durability and performance across thousands of cars in global markets. Driving sustainability transparency for the automotive industry: The Polestar 5 carries a cradle-to-gate carbon foot...

 𝐓𝐨𝐝𝐚𝐲'𝐬 𝐊𝐍𝐎𝐖𝐋𝐄𝐃𝐆𝐄 𝐒𝐡𝐚𝐫𝐞 𝐏𝐈𝐆𝐌𝐄𝐍𝐓 𝐃𝐈𝐒𝐏𝐄𝐑𝐒𝐈𝐎𝐍 𝐈𝐍 𝐂𝐎𝐀𝐓𝐈𝐍𝐆𝐒 𝐏𝐀𝐑𝐓 𝟏 — 𝐓𝐇𝐄 𝐏𝐑𝐎𝐂𝐄𝐒𝐒 A technical series exploring the science, chemistry and formulation principles behind effective pigment dispersion. Have you ever reformulated a coating because of poor color development, low gloss or unexpected viscosity... ...only to discover that the formulation itself wasn't necessarily the problem? Sometimes, the answer is hidden earlier in the process: Pigment dispersion. Pigment dispersion is more than simply mixing pigment into a liquid. It is a controlled process in which pigment particles must be properly incorporated, separated and maintained in a stable state. And this process can be understood through three fundamental stages: 1️⃣ 𝐖𝐄𝐓𝐓𝐈𝐍𝐆 The liquid phase must establish effective contact with the pigment surface. This allows the pigment to become properly incorporated into the vehicle and prepares it for the next stage. T...