C08L87/00

Processes for producing cured polymeric products by additive manufacturing

Disclosed herein are processes for production of a cured polymeric product which processes include using rubber particles to form a rubber layer, applying liquid binder to form a bound layer from the rubber layer, and curing, whereby repetition of steps allows for formation of additional layers and ultimately production of the cured polymeric product.

Processes for producing cured polymeric products by additive manufacturing

Disclosed herein are processes for production of a cured polymeric product which processes include using rubber particles to form a rubber layer, applying liquid binder to form a bound layer from the rubber layer, and curing, whereby repetition of steps allows for formation of additional layers and ultimately production of the cured polymeric product.

POLYPROPYLENE MODIFYING AGENT AND PREPARATION METHOD THEREFOR, POLYPROPYLENE COMPOSITION, AND POLYPROPYLENE MATERIAL AND PREPARATION METHOD THEREFOR
20220267496 · 2022-08-25 ·

A polypropylene modifier and a preparation method therefor, polypropylene composition, and polypropylene material comprising the polypropylene modifier and a preparation method therefor are provided. The preparation method for the polypropylene modifier comprises: bringing a polar monomer grafted polypropylene into contact with a component A to carry out reactive extrusion and granulation, and then carrying out drying, wherein a polar monomer in the polar monomer grafted polypropylene is capable of chemically reacting with the component A; in formula (1), the polar monomer is selected from maleic anhydride, acrylic acid, and acrylate, etc; and the component A is selected from polyisocyanate, etc; and in formula (2), the polar monomer is selected from ditnethylaminoethyl methacrylate and epoxy acrylate, etc; and the component A is selected from polyisocyanate and polyethylene oxide, etc. When introduced into an ordinary linear polypropylene, the polypropylene modifier can significantly improve the melt strength and the mechanical properties of the polypropylene.

ABSORBABLE BONE WAX AND PREPARATION METHOD THEREOF
20210393848 · 2021-12-23 ·

Disclosed is absorbable bone wax and a preparation method thereof. The preparation method comprises the steps of: 1) mixing polyoxypropylene polyoxyethylene block copolymer (PEG-PPG-PEG) and polyoxypropylene polyoxyethylene random copolymer (PEG-PPG), and stirring evenly under heating to obtain a liquid mixture; 2) under mechanical stirring and heating condition, adding hemostatic starch microspheres to the liquid mixture obtained in step 1) to obtain a uniformly-mixed liquid; and 3) adding a bone repair material to the uniformly-mixed liquid obtained in step 2), and mixing uniformly to obtain a mixed solution, then pouring the mixed solution into a mold or sub-packaged bottle, and leaving at room temperature for solidifying and shaping to give the absorbable bone wax. The absorbable bone wax of the present invention can achieve the effect of rapid hemostasis, changing the relatively single hemostasis method with traditional bone wax which only depends on physical sealing.

Resist composition and method for forming resist pattern

A resist composition containing a resin component having a structural unit represented by general formula (a0-1), and a compound represented by general formula (b1). In general formula (a0-1), R is a hydrogen atom, an alkyl group, or a halogenated alkyl group, Va.sup.1 is a divalent hydrocarbon group, n.sub.a1 represents an integer of 0 to 2, Ya.sup.0 is a carbon atom, Xa.sup.0 is a group forming a monocyclic aliphatic hydrocarbon group together with Ya.sup.0, and Ra.sup.00 is an aromatic hydrocarbon group or a specific unsaturated hydrocarbon group. In general formula (b1), R.sup.b1 represents a cyclic hydrocarbon group, Y.sup.b1 represents a divalent linking group containing an ester bond, V.sup.b1 represents an alkylene group, a fluorinated alkylene group, or a single bond, and M.sup.m+ is an m-valent organic cation. ##STR00001##

BIO-ELECTRODE COMPOSITION, BIO-ELECTRODE, AND METHOD FOR MANUFACTURING BIO-ELECTRODE

A bio-electrode composition contains (A) an ionic polymer material. The component (A) is a polymer compound containing: a repeating unit-a having a structure selected from the group consisting of salts of ammonium, sodium, potassium, and silver formed with any of fluorosulfonic acid, fluorosulfonimide, and N-carbonyl-fluorosulfonamide; and a repeating unit-b having a side chain with a radical-polymerizable double bond in a structure selected from the group consisting of (meth)acrylate, vinyl ether, and styrene. Thus, the present invention provides: a bio-electrode composition capable of forming a living body contact layer for a bio-electrode to enable signal collection immediately after attachment to skin and prevention of residue on the skin after peeling from the skin; a bio-electrode including a living body contact layer formed of the bio-electrode composition; and a method for manufacturing the bio-electrode.

Composition for producing graphite-polymer composite and graphite-polymer composite produced therethrough
11359064 · 2022-06-14 · ·

Provided is a composition for producing a graphite-polymer composite. A composition for producing a graphite-polymer composite according to an embodiment of the present invention is prepared by comprising: a heat radiation filler comprising a non-insulating filler and an insulating filler, the non-insulating filler comprising a graphite composite including nanoparticles combined to a surface of graphite and a catechol amine layer; and a matrix forming component comprising a thermoplastic polymer compound. According to the present invention, the composition leads to an improvement in insulation property of a heat radiation member and a minimization in deterioration of heat radiation performance of the heat radiation member, so that the utilization of the composition can be improved in industries requiring both heat radiation characteristics and heat insulation performance. In addition, the composition is combined with a base material, and thus is easily modified through injection/extrusion or the like at the time of molding and can be modified into various shapes. The composite produced according to the present invention expresses excellent heat radiation performance, secures excellent mechanical strength, and has excellent lightweightness and excellent economic feasibility, and thus can be widely applied to various technical fields requiring heat radiation.

Composition for producing graphite-polymer composite and graphite-polymer composite produced therethrough
11359064 · 2022-06-14 · ·

Provided is a composition for producing a graphite-polymer composite. A composition for producing a graphite-polymer composite according to an embodiment of the present invention is prepared by comprising: a heat radiation filler comprising a non-insulating filler and an insulating filler, the non-insulating filler comprising a graphite composite including nanoparticles combined to a surface of graphite and a catechol amine layer; and a matrix forming component comprising a thermoplastic polymer compound. According to the present invention, the composition leads to an improvement in insulation property of a heat radiation member and a minimization in deterioration of heat radiation performance of the heat radiation member, so that the utilization of the composition can be improved in industries requiring both heat radiation characteristics and heat insulation performance. In addition, the composition is combined with a base material, and thus is easily modified through injection/extrusion or the like at the time of molding and can be modified into various shapes. The composite produced according to the present invention expresses excellent heat radiation performance, secures excellent mechanical strength, and has excellent lightweightness and excellent economic feasibility, and thus can be widely applied to various technical fields requiring heat radiation.

Resin composition, and resin film, metal foil with resin, metal clad laminate, wiring board, and circuit mount component using same

One aspect of the present invention relates to a resin composition containing a polyrotaxane (A), an epoxy resin (B), and a curing agent (C), in which the curing agent (C) contains an acid anhydride (C-1) in an amount of 0.1 parts by mass or more and less than 10 parts by mass based on a total of 100 parts by mass of the polyrotaxane (A), the epoxy resin (B), and the curing agent (C).

Resin composition, and resin film, metal foil with resin, metal clad laminate, wiring board, and circuit mount component using same

One aspect of the present invention relates to a resin composition containing a polyrotaxane (A), an epoxy resin (B), and a curing agent (C), in which the curing agent (C) contains an acid anhydride (C-1) in an amount of 0.1 parts by mass or more and less than 10 parts by mass based on a total of 100 parts by mass of the polyrotaxane (A), the epoxy resin (B), and the curing agent (C).