Abstract:
Copolymers comprising ethylene, vinyl esters, in particular vinyl acetate and esters of (meth)acrylic acid, selected from esters comprising branched alkyl, cyclic alkyl or optionally alkyl substituted aryl moieties and having a weight average molecular weight of 35,000 g/mol to 150,000 g/mol, formulations of such copolymers in organic solvents and their use as pour point depressant, wax inhibitor and flow enhancer for crude oils.
Abstract:
La présente invention a pour objet l'utilisation d'un dérivé de furfural de formule (I) dans laquelle R représente (i) un groupe -CH=CR' 1 -COR 1 , un groupe (ii), un groupe (iii), un groupe (iv) ou un groupe -CHO et R' représente un atome d'hydrogène ou un groupe (C 1 -C 4 )alkyle, à titre de véhicule de produit chimique, à titre de solvant, de co-solvant, d'agent de coalescence, d'inhibiteur de cristallisation, d'agent plastifiant, d'agent de dégraissage, d'agent décapant, d'agent nettoyant ou d'agent d'augmentation de l'activité biologique, et plus particulièrement à titre de solvant. Elle concerne également des formulations phytosanitaires ou des formulations de solubilisation de résines comprenant au moins un tel dérivé de furfural de formule (I).
Abstract:
The present disclosure provides a composition that includes a low viscosity ethylene/a- olefin copolymer or a low viscosity functionalized ethylene/a-olefin copolymer and a solvent. Each copolymer has a melt viscosity less than or equal to 20.0 Pa»s (177°C). The solvent is a non- aromatic and halogen-free solvent. The solvent has a boiling point from 100 °C to 170 °C. The composition has a Relative Energy Difference (RED) less than or equal to 1.05 (J/cc)112, based on the Hansen solubility parameter.
Abstract:
An object of the invention is to provide a material comprising ultrafine cellulose fibers, having good dispersibility of fine particles in an aqueous medium containing ultrafine cellulose fibers. According to the invention, there is provided a material comprising ultrafine cellulose fibers, wherein the content of the ultrafine cellulose fibers is 80% by mass or more, and the haze value of a sample, which has been prepared by adding the material comprising ultrafine cellulose fibers to pure water to a solid concentration of 0.4% by mass, and stirring the mixture with a disperser under conditions of 1500 rpm and 5 minutes, is 20% or less.
Abstract:
Provided are: a flame resistant polymer which is obtained by reacting polyacrylonitrile with amine and nitro compounds, the polyacrylonitrile being polymerized by aqueous suspension polymerization using a redox initiator and containing an S component at an amount of 3,000 µg/g or less; a polymer solution using the polymer; a flame resistant fiber using the polymer solution; a carbon fiber using the flame resistant fiber; and methods for producing the same. A PAN-based polymer in which both yarn producing properties and flame resistance are improved can be realized. Also provided are a polymer solution which is suitable for spinning using the polymer and a method for producing the same, a desirable flame resistant fiber using the polymer solution and a method for producing the same, and a desirable carbon fiber using the flame resistant fiber and a method for producing the same.
Abstract:
The present invention relates to compositions comprising at least one polymer which contains triarylamine repeating units, and at least one salt, to methods for the production thereof, and the use thereof in electronic devices, especially in organic electroluminescent devices, so-called OLEDs (OLED = Organic Light Emitting Diode). The present invention also relates to organic electroluminescent devices which contain said compositions.
Abstract:
An object of the present invention is to provide a composition for producing a fiber, which is preferable for immobilizing substances effective for cell adhesion. proliferation.differentiation and the like, and retains organic solvent resistance, a fiber obtained by spinning the composition, and a cell culture scaffold material using the fiber. A composition for producing a fiber, containing (A) a polymer compound containing a unit structure represented by the formula (1) and a unit structure represented by the formula (2), (B) a crosslinking agent, (C) an acid compound, and (D) a solvent wherein each symbol in the formulas (1) and (2) is as described in the DESCRIPTION.
Abstract:
An object of the present invention is to provide a composition for producing a fiber, which is preferable for immobilizing substances effective for cell adhesion. proliferation.differentiation and the like, and retains organic solvent resistance, a fiber obtained by spinning the composition, and a cell culture scaffold material using the fiber. A composition for producing a fiber, containing (A) a polymer compound containing a unit structure represented by the formula (1) and a unit structure represented by the formula (2), (B) a crosslinking agent, (C) an acid compound, and (D) a solvent
wherein each symbol in the formulas (1) and (2) is as described in the DESCRIPTION.