Abstract: A method of manufacturing a crosslinked fluororesin powder includes forming a powder mixture by mixing a fluororesin powder as a first powder with a second powder not fusing to the fluororesin powder even under conditions for crosslinking of the fluororesin powder, and conducting a cross-linking treatment to the formed powder mixture.

Abstract: Linear polyfunctional polyglycidyl amine oligomeric and/or polymeric structures exhibiting at least two primary amines are described, which provide crosslinking capabilities for latex paint compositions. These crosslinkers not only exhibit latent crosslinking properties but also improve scrub resistance when compared with existing latex formulations. Once the latex is coated onto a substrate, the volatile base evaporates and the groups react to form a crosslinked coating with improved scrub resistant properties.

Abstract: The present invention aims to provide a supporting material for supporting the shape of a photofabrication model on photofabrication in ink-jet three dimensional printing method in which the photocured product is excellent in solubility in water and is easy to remove after photofabrication, and the like. A modeling material for forming a photofabrication model in ink-jet three dimensional printing method containing a curable resin component with a weighted average of SP value of 9.0 to 10.3; and a supporting material for supporting the shape of a photofabrication model on photofabrication in ink-jet three dimensional printing method containing a water-soluble monofunctional ethylenically unsaturated monomer (F), polyoxypropylene glycol with a number average molecular weight of 100 to 5,000 and/or water (G), and a photopolymerization initiator (D).

Abstract: A photoinitiator mixture comprising the components (a) a compound of the formula (I) wherein Ar1 and Ar2 independently of each other are ?or naphthyl which is unsubstituted or substituted one or more times by R1, R2, R3 or R?; R1 and R3 in-dependently of each other are C1-C4alkyl, C1-C4alkoxy or halogen; R2 is hydrogen, C1-C4alkyl, halogen, C1-C4alkoxy or C2-C20alkoxy which is interrupted by one or more O; Q is C1-C4alkylene; R4 is methyl or ethyl; R? and R? independently of each other are hydrogen or PG-Y—R??—X—; PG is a polymerizable group or methyl or ethyl; Y is a direct bond, O or S; X is a direct bond, O or S; R?? is a direct bond, C1-C20alkylene or C2-C20alkylene which is interrupted by one or more O; (b) one or more compounds of the formula (II) wherein Ar1, Ar2 and Q are as defined above, and R5 is for example C3-C30alkyl which is unsubstituted or substituted and (c) optionally a compound of the formula (III) R5—OH??(III), wherein R5 is as defined above; provides a

Abstract: The present invention aims to provide a supporting material for supporting the shape of a photofabrication model on photofabrication in ink-jet three dimensional printing method in which the photocured product is excellent in solubility in water and is easy to remove after photofabrication, and the like. A modeling material for forming a photofabrication model in ink-jet three dimensional printing method containing a curable resin component with a weighted average of SP value of 9.0 to 10.3; and a supporting material for supporting the shape of a photofabrication model on photofabrication in ink-jet three dimensional printing method containing a water-soluble monofunctional ethylenically unsaturated monomer (F), polyoxypropylene glycol with a number average molecular weight of 100 to 5,000 and/or water (G), and a photopolymerization initiator (D).

Abstract: Provided is a process for forming an antimicrobial polymer composition comprising: contacting together at least one initiator, at least one promoter, at least one reductant, and at least one monomer, under emulsion polymerization conditions to form a base polymer; and mixing with the base polymer an antimicrobial complex; wherein the at least one initiator is a peroxidic compound and the at least one reductant is an ascorbic compound.

Abstract: The present invention provides a dual-curable adhesive composition, comprising: component (a): an epoxy resin; at least one selected from component (b) and component (c), wherein component (b) is a (meth)acrylate monomer, and component (c) is an oligomer containing a (meth)acryloxy group; component (d): a thermal polymerization catalyst which catalyzes the thermal polymerization reaction of component (a); and component (e): a photo polymerization initiator which initiates the photo polymerization reaction of component (a) and at least one selected from component (b) and component (c), wherein component (e) is a mixture of a cationic photo polymerization initiator and a radical photo polymerization initiator. The dual-curable adhesive composition of the present invention is used for bonding or laminating a transparent substrate with another transparent substrate, or bonding or laminating a transparent substrate with a non-transparent substrate.

Abstract: Polyimide oligomer terminated with maleimide end groups may be cured by irradiation with UV light. The polyimide oligomer terminated with maleimide end groups may be cured in a polymerization mixture that includes a reactive diluent and optionally a photoinitiator. Due to the ability of the polyimide oligomer terminated with maleimide end groups to be cured with light applications the cured oligomer may be used in applications that require low temperatures.

Abstract: Photopolymer resin formulation for 3D printing enhancing the performance of 3D printed objects. In one example, additives comprising two photoinitiators with different absorption spectrums are used to achieve printing and post-curing processes. A thermal initiator can also be used to complete the post-curing process by baking at appropriate temperature. Additive combinations balanced to absorb some light in the near UV range of about 400 nm to about 420 nm absorption wavelength band or spectrum while fluorescing light at frequencies higher than their absorption wavelength allowing the creation of clear transparent materials using only near UV light sources (i.e., about 400 nm to about 420 nm) instead of deep UV (<400 nm) light sources.

Abstract: There is provided herein a curable polysiloxane composition comprising a reactive polysiloxane having the general structural formula (I): as described herein. There is provided a method of making the polysiloxane. In addition there is provided a curable composition including the polysiloxane.

Abstract: Technologies are generally described for fabricating a self-writing waveguide. Two photo-reactive liquid monomers, each infused with a photo-initiator, may be mixed and dissolved in a carrier solvent to form a mixture. Nanoparticles may be added to the mixture to form a gel. A focused light beam may be provided to cure one of the monomers, initiating polymerization to form a core of the self-writing waveguide. An optional exposure to an optical source, a heat source, or an electron beam source may cure the other monomer, initiating polymerization to form a cladding of the self-writing waveguide. The self-writing waveguide may be formed in a substantially tubular structure or a planar film structure.

Abstract: The present invention provides a crosslinkable prepolymer which can be used to produce crosslinked polymeric materials (or contact lenses containing the same) having a high strength and excellent durability. The present invention relates to a polyvinyl alcohol-based prepolymer containing a unit having a pendant 1,2-diol containing group and a unit having a specific crosslinkable functional group, as well as a molding using the same.

Abstract: A reverse-phase suspension polymerization process for the manufacture of polymer beads comprising forming aqueous monomer beads comprising an aqueous solution of water-soluble ethylenically unsaturated monomer or monomer blend and polymerizing the monomer or monomer blend to form polymer beads while suspended in a non-aqueous liquid, and recovering polymer beads, in which the process comprises, providing in a vessel (1) a volume (2) of non-aqueous liquid wherein the volume of non-aqueous liquid extends between at least one polymer bead discharge point (3) and at least one monomer feed point (4), feeding the aqueous monomer or monomer blend through orifices (5) into, or onto, the non-aqueous liquid to form aqueous monomer beads, allowing the aqueous monomer beads to flow towards the polymer bead discharge point subjecting the aqueous monomer beads to polymerization conditions to initiate polymerization to form polymerizing beads, wherein the polymerizing beads have formed polymer beads when they reach the poly

Abstract: A transparent ultraviolet curable adhesive is a solventless composition, based on a total weight of the composition, being composed of 35-65 wt % of a polyurethane (meth)acrylate resin, 30-60 wt % of a (meth)acrylate monomer, 0.1-5 wt % of an acrylate group-containing bisphenol fluorene derivative, 0.3-8 wt % of a photopolymerization initiator and 0.002-0.01 wt % of a vinyl silane coupling agent; and, the adhesive if cured has a refractive index of 1.52-1.56 very close to 1.52 for a glass thereof and has a visible light transmittance of 93-99 VLT (%) so suitable to be adhered to displays, transparent conductive film and touch panels.

Abstract: A composition for nanoimprinting including a siloxane polymer which includes a polymerizable group polymerized by irradiation with light; a polymerization initiator; and a fluorine-containing polymeric compound in which the fluorine-containing polymeric compound has a constituent unit represented by the following formula (f1-1) in which R represents a hydrogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 5 carbon atoms, Rf102 and Rf103 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 5 carbon atoms, or a halogenated alkyl group having 1 to 5 carbon atoms, Rf102 and Rf103 may be the same as or different from each other, nf1 represents an integer of 1 to 5, and Rf101 represents an organic group including a fluorine atom.

Abstract: There is provided with a method for manufacturing a resin product. One embodiment includes performing a modification process on a portion of a surface of the resin product not less than two times by different methods to modify the portion such that a plating metal can be deposited on the portion.

Abstract: Shape memory polymers (SMP) based on poly vinyl alcohol (PVA) in the presence of 2-carboxyethyl acrylate oligomers (CEA), multi-wall carbon nanotubes (MWCNTs) and cross linked by ionizing radiation were investigated. Chemical crosslinking by glutaraldehyde for PVA in the presence of CEA and MWCNTs was also studied. Radiation cross linked SMP exhibits good temperature responsive shape memory behavior as demonstrated by thermal properties of radiation investigated by dynamic mechanical analysis. Transition temperature at Tan ? of radiation cross linked SMP decreased significantly by 6 and 13° C. due to addition of MWCNTs. The developed SMP exhibited promising shape memory behavior of radiation cross linked SMP for biomedical applications between temperatures range of Tan ?. Results on the gel fraction revealed significant reduction in swelling and increase in gelation due to chemical cross linking with glutaraldehyde. The radiation cross linked SMP reached 100% gelation at an irradiation dose of 50 kGy.

Abstract: A solution based polymer nanofiller composite processing method to improve mechanical, electrical, thermal and/or chemical properties. The solution based synthesis method may include the steps of surface functionalizing carbon nanomaterials and dissolving a polymer in a solvent. The functionalized carbon nanomaterials and dissolved polymer may be mixed until the mixture is homogenous. The mixture may be cured to form the polymer carbon nano-composite material, which provides significant improvements in modulus, hardness, strength, fracture toughness, wear, fatigue, creep, and damping performance.

Abstract: [Problem] An problem of the present invention is to provide to a (meth)acrylamide-based urethane oligomer which has excellent compatibility with organic solvents, general purpose acrylic monomers and oligomers, and a high curing speed to active energy rays, and to provide an active energy ray curable resin composition which contains the urethane oligomer, has excellent adhesion, moisture resistance and surface curability, and has low curing shrinkage, and a formed product thereof [Means for Solution] By using a (meth)acrylamide-based urethane oligomer of the present invention which has a carbonate skeleton, a diene-based skeleton or a hydrogenated diene-based skeleton in the molecule, one or more (meth)acrylamide groups and a component having a molecular weight of less than 1,000 (excluding a (meth)acrylamide compound (A) having a hydroxyl group) at a content of 5% by weight or less, it is possible to obtain a urethane oligomer which has excellent compatibility with organic solvents, general purpose acrylic m

Abstract: The present invention provides methods of modifying the surfaces of a plurality of three-dimensional objects at the same time to provide good sliding properties, good durability after repeated sliding, good sealing properties, and the like, and also provides gaskets for syringes obtained by such methods. The present invention relates to a method for modifying the surfaces of a plurality of three-dimensional objects including: a step 1 of immersing a plurality of three-dimensional objects in a photopolymerizable monomer-containing liquid; and a step 2 of polymerizing the photopolymerizable monomer by photoirradiation while rotating a vessel containing the plurality of three-dimensional objects and the photopolymerizable monomer-containing liquid, to grow polymer chains on the surfaces of the plurality of three-dimensional objects.