The present disclosure relates to support structures for three dimensional (3D) printing, methods of preparing the support structures, and methods of using the support structures. In particular, the support structures comprise a hydrogel comprised of a cellulose derivative. Preferably, the support structures are biodegradable and easily removed without generating toxic waste.

An apparatus for production of a water-soluble shell for holding a filling substance, having a tank filled with a melt of a shell material, wherein the shell material contains a polymer and is water-soluble and is solid under standard conditions, and a male mold movably arranged in the region of the tank and automatically lowerable into the melt and withdrawable from the tank in order to form a water-soluble shell. The invention also relates to a corresponding process and to a corresponding shell and to a corresponding portion pack for use as a washing or cleaning agent.

Described herein is an oral care implement comprising a handle, and a head having a main body that is coupled to the handle, the head comprising a release component coupled to the main body, the release component comprising a water-dissolvable matrix comprising a first polymer having a processing temperature greater than or equal to 150° C., and a plurality of tooth cleaning elements.

A method of forming dual layer water soluble packets includes drawing a base film into a cavity of a mold, drawing air through openings in the base film, metering an amount of a first product of a first color onto the base film in the cavity, metering an amount of a second product of a second color onto the amount of the first product, and, sealing a lid film to the base film.

Water-soluble thermoplastic polymer composites of water-soluble thermoplastic polyethylene oxide graft polymers, and nanoscopic particulate processing aids such nanoscopic titanium dioxide powders, or water-soluble polyethylene oxide graft polymers, structural reinforcement materials such as carbon or glass fibers, and plasticizers. These water-soluble thermoplastic polymer composites may be useful in preparing, for example, three-dimensional (3D) sacrificial supports, vapor sensors, as well as other three-dimensional (3D) articles, objects, or parts.

A device for producing a water-soluble shell for receiving a filling substance, the device having a basin which is filled with a melt of a shell material, wherein the shell material is polymer-containing and water-soluble and solid under normal conditions, and a male mold which is movably arranged in the region of the basin, can be automatically submerged into the melt and can be removed from the basin in order to form a water-soluble shell optionally abutting the male mold. The invention also relates to a corresponding method and a corresponding shell and a corresponding portion for use as a washing or cleaning agent.

A method of producing a printed electronic device on a thin PDMS film which includes coupling a first layer of a water-soluble polymer to a substrate and drying the first layer of the water-soluble polymer. The method further includes coupling a second layer of a crosslinkable PDMS polymer to the first layer of the water-soluble polymer and curing the second layer of the crosslinkable PDMS polymer to form the thin PDMS film. The method also includes printing one or more functional layers on the thin PDMS film and drying the one or more functional layers on the thin PDMS film to form the printed electronic device coupled to the substrate.

A laundry bead molding mold is disclosed, including a first mold cavity and a second mold cavity which are separated from each other and could be filled with detergent or detergent additives to meet different washing demands. The first mold cavity has two opposite side walls at a certain angle, which could ensure the shape of the bead product is a preset shape. The mold could be used to mold a laundry bead having at least two cavities, and could obtain a multifunctional laundry bead, has a simple structure and a high yield of the formed bead. A laundry bead formed by the mold is also disclosed, including a plurality of beads, which facilitates the washing process. A laundry bead molding method is also disclosed.

A method for producing a tire filled with a (meth)acrylic hydrogel, the method comprises a) providing a mixture comprising at least one water-soluble (meth)acrylic compound, water and an initiator, and b) filling the mixture in a tire in which the mixture polymerizes to form the (meth)acrylic hydrogel. The tire filling material is suitable for producing flat proof tires, enables fast and controlled cure and is insensitive towards dosage errors. Moreover, the tire filling material is environmental friendly and cost effective.

A method of recycling and reusing a tap water-soluble sulfonated polymer material from a structural component made using an additive manufacturing process comprises dissolving the structural component in water to disperse the sulfonated polymer material into the water. The sulfonated polymer material is precipitated from the water and recovered; then dried and reformed into a form suitable for subsequent use as a consumable feedstock in a subsequent additive manufacturing process.