B29K2105/043

Method and Apparatus for Forming an Expandable Foam Pellet Having a Hard Outer Shell by Underwater Pelletizing, and Expandable Foam Pellets Formed Thereby
20180001532 · 2018-01-04 ·

A pre-expanded hard shell thermoplastic foam pellet is made by controlling the temperature of the melt exiting a die plate in an underfluid pelletizer, and by controlling the temperature and pressures of the cooling fluid as the pellet flows from the cutting chamber through the slurry line toward a centrifugal dryer. The process and apparatus used for controlling the above parameters is described in conjunction with making the pellets. The pellets thus formed may have a generally spherical shape, or they may have odd, irregular shapes with foam hemorrhages protruding therefrom, depending on the conditions during pre-expansion.

Methods for producing three-dimensional objects

A method of forming a three-dimensional object is described. The method may use a polymerizable liquid, or resin, useful for the production by additive manufacturing of a three-dimensional object, comprising a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from said first component.

Methods of producing three-dimensional objects with apparatus having feed channels

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

Self-releasing in-mold coating (IMC) for coating substrates
12202999 · 2025-01-21 · ·

Described herein is a composition which is suitable for coating components in an in-mold coating process, a process for coating components, and a method of using the composition for improving the flow behavior of compositions used for producing components. The composition includes at least one solvent L, at least one alkoxylated fatty acid and/or fatty alcohol, and at least one alkoxylated polysiloxane.

METHODS OF PRODUCING THREE-DIMENSIONAL OBJECTS FROM MATERIALS HAVING MULTIPLE MECHANISMS OF HARDENING

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.

Foamed and stretched plastic bottle

A foamed and stretched plastic bottle having, in the body portion thereof, a foamed region in which foamed cells are distributed, wherein, in at least a portion of the foamed region, the lengths of the foamed cells in the axial direction of the bottle are so distributed as to gradually decrease as the positions of the foamed cells shift from the outer surface side of the body portion toward the central portion thereof and then gradually increase as their positions shift from the central portion thereof toward the inner surface side thereof. The foamed and stretched plastic bottle of the invention exhibits excellent light-shielding property.

Vehicle interior storage compartment
09694731 · 2017-07-04 ·

A vehicle interior storage compartment is disclosed. The vehicle interior storage compartment is configured to store a beverage container. The vehicle interior storage compartment includes a substrate and a foam liner having a skin secured to the substrate during a forming process. The liner includes at least one protrusion configured to deform.

FOAMED AND STRETCHED PLASTIC BOTTLE

A foamed and stretched plastic bottle having, in the body portion thereof, a foamed region in which foamed cells are distributed, wherein, in at least a portion of the foamed region, the lengths of the foamed cells in the axial direction of the bottle are so distributed as to gradually decrease as the positions of the foamed cells shift from the outer surface side of the body portion toward the central portion thereof and then gradually increase as their positions shift from the central portion thereof toward the inner surface side thereof. The foamed and stretched plastic bottle of the invention exhibits excellent light-shielding property.

PROCESS FOR PRODUCING A PLASTIC PART
20170173827 · 2017-06-22 ·

A process for producing a plastic part for vehicles in an injection molding process, characterized by the following steps: a first plastic charge is injected in the plasticized state into the mold cavity of an injection mold, subsequently, a second plastic charge is injected together with a blowing agent into the mold cavity, the blowing agent leading to the expansion of the second plastic charge injected into the mold cavity, as a result of which the still fluid first plastic charge is pressed from the inside against the walls which delimit the mold cavity of the injection mold, wherein, after the first plastic charge has been injected, a coolant is conducted through the walls which delimit the mold cavity of the injection mold, as a result of which the walls which delimit the mold cavity of the injection mold are actively cooled.

Methods of producing three-dimensional objects from materials having multiple mechanisms of hardening

A method of forming a three-dimensional object is carried out by: (a) providing a carrier and an optically transparent member having a build surface, the carrier and the build surface defining a build region therebetween; (b) filling the build region with a polymerizable liquid, the polymerizable liquid including a mixture of (i) a light polymerizable liquid first component, and (ii) a second solidifiable component that is different from the first component; (c) irradiating the build region with light through the optically transparent member to form a solid polymer scaffold from the first component and also advancing the carrier away from the build surface to form a three-dimensional intermediate having the same shape as, or a shape to be imparted to, the three-dimensional object, and containing the second solidifiable component carried in the scaffold in unsolidified and/or uncured form; and (d) concurrently with or subsequent to the irradiating step, solidifying and/or curing the second solidifiable component in the three-dimensional intermediate to form the three-dimensional object.