摘要:
The invention relates to the use of at least one mixed mineral organoclay rheology additive, which comprises or consists of a quaternary alkyl-ammonium salt treated mineral clay mixture prepared by forming an aqueous hormite clay slurry (a), forming an aqueous smectite clay slurry (b), combining the aqueous hormite clay slurry (a) with the aqueous smectite clay slurry (b) to form a combined clay slurry (c), treating the combined clay slurry (c) with one or more quaternary alkyl-ammonium salts, in which the aqueous hormite clay slurry (a) being formed by dispersing a fraction of one or more hormite clays selected from the group of sepiolites and palygorskites in an aqueous medium to form a dispersion, and whereby the hormite clay fraction employed contains less than 3.0% by weight of Al2O3, less than 1.0% by weight of Fe2O3, and less than 3.5% by weight of the combination of Al2O3 and Fe2O3; and the aqueous smectite clay slurry (b) being formed by dispersing a fraction of one or more smectite clays in an aqueous medium to form a dispersion, and in that the weight of the hormite clay content exceeds the weight of the smectite clay content in the combined clay slurry (c); and subjecting the hormite clay slurry (a) and the smectite clay slurry (b) to high speed fluid shear before combining both slurries and/or after having both slurries combined and wherein the one or more hormite clays employed in the formation of the aqueous hormite clay slurry (a) exhibit a methylene blue exchange capacity below 20 mmol methylene blue per 100 g of the one or more hormite clays in dry state and whereby the hormite clay fraction employed in the formation of the aqueous hormite clay slurry (a) shows an integral breadth B=(net area of reflection)/(net height of reflection) of the (110) reflection in an X-ray powder pattern recorded on an oriented glycolated sample of the hormite clay fraction using CuKα-radiation of less than 0.800 scan units, in a liquid composition. The invention also relates to a process for producing a mixed mineral organoclay rheology additive and the use of the thus produced additive as a thickening agent in liquid compositions.
摘要:
Disclosed is an optical film that has excellent adhesion and surface hardness between the film substrate and a hard coat layer or other functional layer, has improved brittleness, is transparent, and has low moisture absorption and high heat resistance. Additionally disclosed are an antireflective film, a polarizing plate, and a display device using the same. The optical film has at least a hard coat layer or a back coat layer as a functional layer containing a resin on a film substrate, and is characterized in that said film substrate contains a thermoplastic acrylic resin (A) and a cellulose ester resin (B), with the content ratio by mass of said thermoplastic acrylic resin (A) and said cellulose ester resin (B) being in a range thermoplastic acrylic resin (A):cellulose ester resin (B)=95:5 to 50:50.
摘要:
A polycarbonate resin of a copolymer of diethyleneglycol bis(allyl carbonate) with one of glycidyl acrylate and glycidyl methacrylate, its homopolymer and its copolymer, and further occasionally a copolymerizable compound can be easily modified with active amine at its surface, and the surface-modified copolymer of diethylene glycol bis(allyl carbonate) with glycidyl acrylate or methacrylate can be easily dyed with acid dye in a sharp color tone and can be used in an optical instrument demanded to have a high vividness of color.
摘要:
A glass fiber-reinforced polymer composite includes a polymer matrix, a plurality of glass fibers embedded within the polymer matrix, a first hollow glass fiber containing a resin embedded within the polymer matrix, a second hollow glass fiber containing a catalyst suitable for curing the resin embedded within the polymer matrix. When damage occurs to such a composite, the glass fibers containing the resin and the catalyst are ruptured, resulting in their mixing together so that the resin is cured for repairing the ruptured location.
摘要:
An expandable material and articles incorporating the same are disclosed. The material includes a polymeric admixture; a blowing agent; a curing agent; a tackifier; and optionally, a filler or fiber.
摘要:
A crosslinked, co-polymer hydrogel film has a continuous spatial gradient of functional co-monomers across a dimension of the film. A method of manufacturing a hydrogel film includes preparing a solution of a hydrogel-forming polymer, a functional ionic co-monomer, a polymerization initiator, an accelerator, and a solvent, transferring the solution to a mold and arranging the mold between two electrodes, applying a voltage to the electrodes to cause the ionic co-monomer to migrate towards an oppositely charged one of the two electrodes, and applying a polymerization energy to the solution to fix a position of the co-monomers within a resulting polymer matrix.
摘要:
A multilayered aliphatic polyester film of the present invention comprising a first resin layer and a second resin layer laminated on one or both sides of the first resin layer, the first resin layer containing a polylactic-based polymer comprising L-lactic acid in an amount ranging from 50 to 100% by weight, and the second resin layer containing a polylactic-based polymer comprising D-lactic acid in an amount ranging from 5 to 20% by weight, can be easily peeled off by pulling with hands, and has improved heat adhesiveness, heat resistance, transparency, impact resistance, perforation resistance and dimensional stability. Accordingly, it is useful for packaging materials, especially as a disposable film lid for plastic containers.
摘要:
A shaped article of synthetic resins, such as polydiethylene glycol bisallylcarbonate, is coated with the following coating composition and then irradiated with ultraviolet rays, whereby the coating composition deposited on the shaped article is cured to form a coating film having an excellent abrasion resistance, surface smoothness, adhesion to the substrate resin, flexibility, heat resistance, solvent resistance and durability. The coating composition comprised of (a) a mixture of, based on the weight of the mixture, (i) 25-99.95 wt. % of at least one polyfunctional monomer having at least three acryloyloxy or methacryloyloxy groups, (ii) 0-50 wt. % of at least one mono- or bi-functional monomer having one or two polymerizable unsaturated groups and (iii) 0.05-25 wt. % of at least one organic acid which has at least one halogen substituent (fluorine, chlorine or bromine) and which is liquid at normal temperature and pressure, and (b) 0.01-10 wt. parts, based on 100 wt. parts of said mixture, of a photosensitizer. The coating composition may contain 0.05-25 wt. % of at least one compound having an acrylamide or methacrylamide group and a hydroxyl group or groups.
摘要:
A process for preparing an abrasion resistant allyl diglycol carbonate lens is provided. The allyl diglycol carbonate lens prepared by the process of the invention has an abrasion resistant coating thereon comprised of a transparent base of a hydrolyzed polysilicic acid ester and polyvinyl alcohol comprising 90 to 100% hydrolyzed polyvinyl acetate.