Patent classifications
B29K2079/085
EX-SITU PREPARATION METHOD FOR LIQUID MOLDING COMPOSITE MATERIAL
Embodiments of the present disclosure provide an ex-situ preparation method for a composite molded body. The preparation method comprises: providing a porous support, a first component, and a second liquid component; contacting the first component with the porous support; contacting the second liquid component with the first component and/or the porous support, in which process the first component and the second liquid component do not undergo a chemical reaction, and the second liquid component remains in a liquid state; and treating the first component and the second liquid component such that the first component and the second liquid component undergo a chemical reaction to become a solid, or undergo phase transformation toughening and solidification molding. The present disclosure discloses an advanced composite material manufacturing technology, and relates to a low-cost and easy-to-operate ex-situ liquid molding preparation method. In the method, core reaction components are separated spatially, and two sub-processes of physical flow and chemical reaction are separated chronologically, thereby greatly simplifying the liquid molding technique. The “ex-situ” preparation method is applicable to liquid molding manufacture of thermosetting resins, liquid molding and toughening of thermosetting composite materials, and liquid molding manufacture of thermoplastic composite materials. By means of the “ex-situ” liquid molding, some resin materials originally unsuitable for liquid molding can be modified into liquid-moldable materials, thereby expanding the options and types of resin materials for liquid molding.
Fixture and method for use in a molding process
A preform-charge fixture creates a preform charge, which is a partially consolidated assemblage of preforms that can be efficiently transferred to a mold to create a finished part in a molding process, such as compression molding. In the illustrative embodiment, the preform-charge fixture includes peripheral cleats that are movable towards a central cleat to create a small gap therebetween that receives and constrains preforms in a desired position. The fixture also includes clamps, which are operable to engage an uppermost layer of preforms in the gap and apply a slight amount of downward pressure thereto to assure that the preforms are properly seated. The fixture also accommodates an energy source that heats the preforms so that, in conjunction with downforce applied by the clamps and/or gravity, the preforms can be tacked together, forming the preform charge.
Fixture and method for use in a molding process
A preform-charge fixture creates a preform charge, which is a partially consolidated assemblage of preforms that can be efficiently transferred to a mold to create a finished part in a molding process, such as compression molding. In the illustrative embodiment, the preform-charge fixture includes peripheral cleats that are movable towards a central cleat to create a small gap therebetween that receives and constrains preforms in a desired position. The fixture also includes clamps, which are operable to engage an uppermost layer of preforms in the gap and apply a slight amount of downward pressure thereto to assure that the preforms are properly seated. The fixture also accommodates an energy source that heats the preforms so that, in conjunction with downforce applied by the clamps and/or gravity, the preforms can be tacked together, forming the preform charge.
ACTIVATING SURFACES FOR SUBSEQUENT BONDING
A method of activating a surface of a plastics substrate formed from: (a) polyaryletherketone such as polyether ether ketone (PEEK) polyether ketone ketone (PEKK), polyether ketone (PEK); polyether ether ketone ketone (PEEKK); or polyether ketone ether ketone ketone (PEKEKK); (b) a polymer containing a phenyl group directly attached to a carbonyl group, for example polybutadiene terephthalate (PBT) optionally wherein the carbonyl group is part of an amide group, such as polyarylamide (PARA); (c) polyphenylene sulfide (PPS); or (d) polyetherimide (PEI); for subsequent bonding, the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation: includes radiation with wavelength in the range from about 10 nm to about 1000 nm; the energy of the actinic radiation to which the surface is exposed is in the range from about 0.5 J/cm.sup.2 to about 300 J/cm.sup.2.
Hard to bond substrates are then more easily subsequently bonded for example using acrylic, epoxy or anaerobic adhesive.
ACTIVATING SURFACES FOR SUBSEQUENT BONDING
A method of activating a surface of a plastics substrate formed from: (a) polyaryletherketone such as polyether ether ketone (PEEK) polyether ketone ketone (PEKK), polyether ketone (PEK); polyether ether ketone ketone (PEEKK); or polyether ketone ether ketone ketone (PEKEKK); (b) a polymer containing a phenyl group directly attached to a carbonyl group, for example polybutadiene terephthalate (PBT) optionally wherein the carbonyl group is part of an amide group, such as polyarylamide (PARA); (c) polyphenylene sulfide (PPS); or (d) polyetherimide (PEI); for subsequent bonding, the method comprising the step of exposing the surface to actinic radiation wherein the actinic radiation: includes radiation with wavelength in the range from about 10 nm to about 1000 nm; the energy of the actinic radiation to which the surface is exposed is in the range from about 0.5 J/cm.sup.2 to about 300 J/cm.sup.2.
Hard to bond substrates are then more easily subsequently bonded for example using acrylic, epoxy or anaerobic adhesive.
Method of manufacturing a component of an outsole for use in an article of footwear
An outsole component for use in an article of footwear is manufactured using a molding process that incorporates a second polymeric material with a film component including a first layer formed of a polymeric hydrogel material. The first layer forms the external or ground-facing layer of the outsole. Methods of manufacturing the outsole component, as well as articles of footwear including outsole component and methods of manufacturing such articles of footwear are also described.
Dip Molding Emulsion and Glove
Provided is, a glove production method including: (1) the step of immersing a glove forming mold in a liquid coagulant containing calcium ions so as to allow the coagulant to adhere to the glove forming mold; (2) the dispersion step of leaving a dip molding composition to stand with stirring; (3) the dipping step; (4) the gelling step; (5) the leaching step; (6) the beading step; (7) the precuring step; and (8) the curing step, in which method the steps (3) to (8) are performed in the order mentioned, and the dip molding composition has a specific formulation.
Method of making a retort container
A method is described for making a retort container having one or two metal ends. A heat-sealable material is present on one or both of the container side wall and the/each metal end. The/each metal end is seamed onto the container body, and the resulting container assembly is conveyed on a conveyor adjacent to an induction sealing head and then adjacent to a cooling device. A pressure belt engages the upper end of the container assembly to keep the metal end from coming off the container body during the induction heating and cooling processes.
Method of making a retort container
A method is described for making a retort container having one or two metal ends. A heat-sealable material is present on one or both of the container side wall and the/each metal end. The/each metal end is seamed onto the container body, and the resulting container assembly is conveyed on a conveyor adjacent to an induction sealing head and then adjacent to a cooling device. A pressure belt engages the upper end of the container assembly to keep the metal end from coming off the container body during the induction heating and cooling processes.
Break-away support material for additive manufacturing
A support material for use in an additive manufacturing system to print a support structure for a three-dimensional part. The support material includes a base resin that is substantially miscible with a part material used to print the three-dimensional part, and has a glass transition temperature within about 10° C. of a glass transition temperature of the part material. The support material also includes a dispersed resin that is substantially immiscible with the base resin, where the base resin and the dispersed resin are each thermally stable for use in the additive manufacturing system in coordination with the part material.