Patent classifications
C08J2433/02
ONE-STEP PROCESS FOR MAKING A POLYMER COMPOSITE COATING WITH HIGH BARRIER
This invention relates to a a one-step process for making a polymer composite suspension for coating plastic films characterized in that a first polymer is synthesized in-situ optionally in the presence of other polymers and in the presence of clay. Preferably the polymer composite suspension comprises a) 1.0 to 11.0 wt % of clay or silane modified clay, b) 0.1 to 10.0 wt % of poly (acrylic acid), which is a copolymer of acrylic acid (AA) with at least one other monomer selected from 2-ethylhexyl acrylate (EHA), -carboxyethyl acrylate (-CEA), methacrylamidoethyl ethylene urea (WAM II) and ethoxylated behenyl methacrylate (-EM), c) 1.0 to 15.0 wt % of other polymers, preferably poly (vinyl alcohol) and d) 70 to 97 wt % of water or mixture of water with 2-propanol. The coating films made from the suspensions show good barrier capabilities against water vapor and oxygen can be used to make barrier layers on or within plastic films for packaging applications. The invention also relates to methods for making silane modified clay usable in the process for making the suspensions.
HIGH STRENGTH BIOMEDICAL MATERIALS
High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.
HIGH STRENGTH BIOMEDICAL MATERIALS
High strength biomedical materials and processes for making the same are disclosed. Included in the disclosure are nanoporous hydrophilic solids that can be extruded with a high aspect ratio to make high strength medical catheters and other devices with lubricious and biocompatible surfaces.
SUBSTRATE COATED WITH A POLYMER OBTAINED BY GRAFTING AN AQUEOUS GRAFTING SOLUTION
A substrate coated with a polymer obtained by grafting an aqueous monomer grafting solution comprising a mixture that includes sodium styrene sulphonate (NaSS) and methacrylic acid (MA) or acrylic acid (AA). The mixture has 10 to 90 mol % of sodium styrene sulphonate and 10 to 90 mol % of methacrylic acid or acrylic acid. The substrate is selected from among polyesters, vinyl polymers, polyacrylics and polymethacrylics, PEEK, silicones, natural polymers, natural or artificial celluloses, collagens, glycopolymers, ceramics, metals and metal alloys, and in particular Ti and alloys thereof and NiTi alloys. The aqueous grafting solution has, in addition to the mixture which represents 90 to 99 mol % of the aqueous grafting solution, 1 to 10 mol % of hydroxyethylmethacrylate (HEMA).
POLYARYLENE SULFIDE DISPERSION, POWDER PARTICLES, METHOD FOR PRODUCING POLYARYLENE SULFIDE DISPERSION, AND METHOD FOR PRODUCING POWDER PARTICLES
An object of the present invention is to provide a polyarylene sulfide dispersion which has high dispersion stability even if the polyarylene sulfide resin concentration is high, and which is coated with an anionic group-containing organic polymer compound having excellent bondability and adhesion to various base materials such as plastics, metals, and glasses. The present invention solves the aforementioned problem by providing a polyarylene sulfide dispersion which is including polyarylene sulfide particles having high stability even at a high concentration by being coated with an anionic group-containing organic polymer compound according to an acid deposition method; and powder particles obtained from the polyarylene sulfide dispersion.
LAMINATED POLYESTER FILM AND A PRODUCTION METHOD THEREOF, SOLAR CELL PROTECTIVE SHEET, AND SOLAR CELL MODULE
An embodiment of the present invention provides a laminated polyester film including: a biaxially oriented polyester film which is produced by stretching an un-stretched polyester film in a first direction and stretching the resultant in a second direction perpendicular to the first direction along a film surface and has a small endothermic peak temperature of 160 C. or higher and 210 C. or lower, which is derived from a heat setting temperature measured by differential scanning calorimetry; and an undercoat layer which is formed by applying an undercoat layer forming composition onto one surface of the polyester film stretched in the first direction before being stretched in the second direction, and stretching the resultant in the second direction, and has a modulus of elasticity of 0.7 GPa or higher, a production method thereof, and a solar cell protective sheet and a solar cell module which include the laminated polyester film.
TREATED POROUS MATERIAL
The present disclosure describes a treated cellulosic material comprising: a cellulosic material having a porous structure defining a plurality of pores, at least a portion of the pores containing a treating agent comprising: a polymer comprising an olefin-carboxylic acid copolymer; and a modifying agent comprising a polyamine having greater than or equal to 2 amine groups, wherein the modifying agent crosslinks at least a portion of the polymer.
Coated particles for forming of continuous polymeric or metallic layers
Particles for forming interconnected or continuous layers of material are, in some embodiments, composed of a Material A, a first central material comprising at least one meltable, softenable, or sinterable substance, and Material B, a second substantially thin material applied to the outer surface of said first material which is thermally or mechanically breachable.
Composite material for absorbent article, and method for manufacturing thereof
A composite material for an absorbent article and a method for manufacturing said composite material, said composite material being obtained by causing an absorbent material to adhere by electrostatic interaction to a substrate material, the surface of the absorbent material being positively or negatively charged in a prescribed solvent selected from among a nonpolar organic solvent, a polar organic solvent, and a water/polar organic solvent mixture; and the surface of the composite material being charged to an electrical charge opposite to that of the surface of the substrate material, in the prescribed solvent. The substrate material has a fiber substrate or a plastic substrate, and a polyelectrolyte layer provided on the surface layer; and/or the absorbent material has an absorbent-particle substrate or an absorbent fiber substrate, and a polyelectrolyte layer provided on the surface layer.
Core-shell structure membrane scale inhibitor and preparation method therefor
Disclosed are a core-shell structure membrane scale inhibitor and a preparation method therefor, wherein the core-shell structure membrane scale inhibitor has a core emulsion obtained via emulsion polymerization, and a shell structure obtained via ultraviolet-light grafting functional monomers. The preparation method has first preparing a core by using an emulsion polymerization process, adding a reactive photo-initiator in the later stage of polymerization, so that the reactive photo-initiator is grafted on the surface of the core, and finally initiating the polymerization of functional monomers by means of ultraviolet light to obtain a core-shell structure membrane scale inhibitor. The surface structure of the core is modified, such that a large number of ionizable groups are grafted on the surface thereof, and thus, a large number of scaling ions such as Ca2+, Mg2+ and Al3+ can be adsorbed.