Patent classifications
C08F290/06
Biodegradable, Industrially Compostable, and Recyclable Injection Molded Microcellular Flexible Foams
This document discloses a process for manufacturing recyclable injection molded microcellular foams for use in, footwear components, seating components, protective gear components, and watersport accessories. The process includes the steps of providing a thermoplastic polymer which comprises at least one monomer derived from depolymerized post-consumer plastic, inserting a fluid into a barrel of a molding apparatus. The fluid is introduced under temperature and pressure conditions to produce a super critical fluid. The process further includes mixing the thermoplastic polymer and super critical fluid so as to create a single phase solution, and injecting the single phase solution into a mold of an injection molding machine under gas counter pressure. The process further includes foaming the single phase solution by controlling the head and temperature conditions within the mold.
Blocked isocyanate, photo-curable composition, resin, and method of manufacturing three-dimensional object
Provided is a photo-curable composition capable of creating a three-dimensional object excellent in both of: stiffness and strength; and toughness. Specifically, provided is a photo-curable composition including: a blocked isocyanate represented by the general formula (1); a chain extender; and a photo-radical generator: ##STR00001##
wherein, in the general formula (1), A.sub.1 to A.sub.4 each independently represent a structure represented by the following general formula (2), and B represents a structure represented by the following general formula (3) ##STR00002##
Photo-curable resin composition for three-dimensional molding, method for three-dimensional molding using the same, and three-dimensional molded product
A photo-curable resin composition for three-dimensional molding which does not require a support material is provided and can be cured by light irradiation while being extruded from a nozzle through a simple FDM method to be stacked and molded in a short period of time. The photo-curable resin composition has a viscosity at 20° C. of 0.2 Pa.Math.s or more and a viscosity at 150° C. of 1000 Pa.Math.s or less.
Contact lens packaging solutions containing hydrophilic polymers endcapped with a hydrophilic and a hydrophobic group
A packaging system for the storage of an ophthalmic device is disclosed. The packaging system comprises a sealed container containing one or more unused ophthalmic devices immersed in an aqueous packaging solution comprising one or more hydrophilic polymers or copolymers comprising hydrophilic units and endcapped with a hydrophobic end group and a hydrophilic end group, wherein the solution has an osmolality of at least about 200 mOsm/kg, a pH of about 6 to about 9 and is heat sterilized.
Polymerizable absorbers of UV and high energy visible light
Described are polymerizable high energy light absorbing compounds of formula I: ##STR00001##
wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, and X are as described herein. The compounds absorb various wavelengths of ultraviolet and/or high energy visible light and are suitable for incorporation in various products, such as biomedical devices and ophthalmic devices.
Resin composition for modeling material, resin composition for supporting material, photofabrication product, and process for producing photofabrication product
A resin composition for a modeling material for use in shaping a modeling material (4) by an ink-jet photofabrication method, the resin composition comprising, based on 100 parts by weight of the whole resin composition, 19 to 49 parts by weight of a water-insoluble monofunctional ethylenically unsaturated monomer (A), 15 to 50 parts by weight of a di- or more-functional polyfunctional ethylenically unsaturated monomer (B), 10 to 45 parts by weight of an oligomer (C), and a photopolymerization initiator (D). By this resin composition for a modeling material, a photofabrication product having good dimensional accuracy can be obtained.
Resin composition for modeling material, resin composition for supporting material, photofabrication product, and process for producing photofabrication product
A resin composition for a modeling material for use in shaping a modeling material (4) by an ink-jet photofabrication method, the resin composition comprising, based on 100 parts by weight of the whole resin composition, 19 to 49 parts by weight of a water-insoluble monofunctional ethylenically unsaturated monomer (A), 15 to 50 parts by weight of a di- or more-functional polyfunctional ethylenically unsaturated monomer (B), 10 to 45 parts by weight of an oligomer (C), and a photopolymerization initiator (D). By this resin composition for a modeling material, a photofabrication product having good dimensional accuracy can be obtained.
Thermosetting compositions and forming three-dimensional objects therefrom
Thermoset compositions and methods for forming three-dimensional articles via an additive fabrication process, and articles made therefrom are disclosed herein. In an embodiment, a composition comprises a first network-forming component comprising a TPA-based polyester comprising a backbone and having at least 2 polymerizable groups, one or more first network monomers, and a first network initiator. The backbone of the TPA-based polyester comprises the reaction product of a terephthalic acid and a polyol. The composition may further comprise a second network-forming component.
Optical film having organic and inorganic particles of different sizes, and polarizing plate comprising same
The present invention relates to a resin composition for forming an optical film, an optical film, and a polarizing plate, in which the resin composition for forming an optical film improves adhesion between an antiglare layer and a light-transmitting substrate film and enables the antiglare layer and the optical film to exhibit excellent optical properties such as appropriate haze, low gloss value, and excellent antiglare properties. The composition for forming an optical film is a resin composition for forming an optical film for forming an infiltration layer and an antiglare layer having surface irregularities on a light-transmitting substrate film, and comprises: a binder-forming compound including a polyfunctional (meth)acrylate-based compound having three or more functionalities, and a permeable compound having a hydrophilic functional group and a photo-curable functional group; two or more light-transmitting fine particles having a sub-micron (sub-μm) scale; and a permeable solvent capable of dissolving at least a part of the light-transmitting substrate film, wherein the binder-forming compound and the permeable solvent have a weight ratio of 1:0.04 or more.
RESIN COMPOSITION FOR STEREOLITHOGRAPHY
The present invention provides a resin composition for stereolithography that excels in strength, toughness, and water resistance in the form of a shaped article. The present invention relates to a resin composition for stereolithography that comprises a urethanized (meth)acrylic compound (A), a (meth)acrylate compound (B) containing no urethane bond, and a photopolymerization initiator (C), the compound (A) being a urethanized (meth)acrylic compound (A-1) having a polymer structure, and/or a urethanized (meth)acrylic compound (A-2) having no polymer structure, the compound (A-1) having a weight-average molecular weight of less than 1,000, the compound (A-2) having a molecular weight of less than 1,000, the compound (B) comprising at least one selected from the group consisting of a (meth)acrylate compound (b-I) represented by general formula (I), and a (meth)acrylate compound (b-II) represented by general formula (II).
##STR00001##