摘要:
The invention relates to polyureas having a weight-average molecular weight ranging from 5,000 to 70,000 g/mol, the preparation thereof, and the use thereof as rheology control agents. The invention further relates to rheology control agents containing polyureas and to the use thereof. The invention moreover relates to formulations containing polyureas.
摘要:
The present invention relates to a coating composition capable of embodying paper feel for food packing paper, comprising a resin mixture, additive and solvent, characterized in that said additive comprises 3 to 12% by weight of polyethylene-based wax.
摘要:
The carbon black composition for manufacturing a particulate magnetic recording medium contains carbon black, vinyl chloride resin containing one or more epoxy groups, the secondary monoamine denoted by formula 1, and solvent, wherein, in formula 1, each of R1 and R2 independently denotes an alkyl group branching off at a carbon atom, the carbon atom being present at an α-position relative to an amine nitrogen atom, and having a main structure with 7 or fewer carbon atoms, it being possible for the alkyl group denoted by R1 to be in the form of a cyclic structure, possible for the alkyl group denoted by R2 to be in the form of a cyclic structure, and possible for the alkyl group denoted by R1 and the alkyl group denoted by R2 be connected to form a cyclic structure, with neither R1 nor R2 containing a hydroxyl group.
摘要:
The present invention relates to a composition comprising an aqueous dispersion of an associative thickener having a hydrophobic portion with a calculated log P in the range of from 2.7 to 5.0; and composite particles comprising phosphorus acid functionalized polymer particles adsorbed to the surfaces of TiO2 particles; wherein the phosphorus acid functionalized polymer particles have a core-shell morphology wherein the core protuberates from the shell. The composition of the present invention provides formulators with flexibility in their use of low and mid shear rate thickeners to balance paint performance properties.
摘要:
An optical filter includes an absorption layer containing a near-infrared absorbing dye with an absorption characteristic in dichloromethane satisfying (i-1) to (i-3). (i-1) In an absorption spectrum of a wavelength of 400 to 800 nm, there is a maximum absorption wavelength λmax in 670 to 730 nm. (i-2) Between a maximum absorption coefficient ∈A of light with a wavelength of 430 to 550 nm and a maximum absorption coefficient ∈B of light with a wavelength of 670 to 730 nm, the following relational expression: ∈B/∈A≧65 is established. (i-3) In a spectral transmittance curve, the difference between a wavelength λ80 with which the transmittance becomes 80% on a shorter wavelength side than the maximum absorption wavelength with the transmittance at the maximum absorption wavelength λmax set to 10% and the maximum absorption wavelength λmax is 65 nm or less.
摘要:
Aspects of the invention include color change compositions having a color former and color developer composition that transitions from a first color state to a second color state upon application of an applied stimulus and an amount of a copolymer sufficient to eliminate background color of the color former and color developer composition during transition from the first color state to the second color state. Methods for preparing and devices employing the color change compositions of the invention are also described.
摘要:
Provided are a black pigment composition for heat-shielding coatings that has superior infrared radiation transmittance, approximates the hue of chromium-based black coatings not only in a dark color, but also in a light color as well and therefore facilitates hue adjustment when mixed with a chromatic coating, has superior weather resistance and is also advantageous in terms of cost, as well as a heat-shielding coating that uses the same, and a shading method. The black pigment composition for heat-shielding coatings contains, at least, a phthalocyanine blue pigment as a first pigment and a phthalocyanine green pigment as a second pigment, and further contains at least one other chromatic pigment, wherein, regarding the amounts in parts by weight of the phthalocyanine blue pigment as Mb, of the phthalocyanine green pigment as Mg, and of the total of the at least one other chromatic pigment as Mn, 1.5
摘要:
The present technology relates to a transparent coating system or film which comprises a transparent, polymeric material, one or more pearlescent pigments, and one or more transparent dyes, organic pigments, organic pigment derivatives or inorganic pigments. The coating may be used to give well-defined transmission and reflection spectra in the visible region while having a high degree of reflection in the NIR region.
摘要:
An electromagnetic-wave-absorbing film comprising an electromagnetic-wave-absorbing layer comprising fine graphene particles and a binder resin, the electromagnetic-wave-absorbing layer being formed by repeating plural times a cycle of applying a dispersion comprising 1-10% by mass of flaky fine graphene particles and 0.05-5% by mass of a binder resin in an organic solvent to a plastic film, and then drying the dispersion; the electromagnetic-wave-absorbing layer having a thickness of 2-15 g/m2 (expressed by the weight of fine graphene particles per 1 m2); a mass ratio of the binder resin to fine graphene particles in the electromagnetic-wave-absorbing layer being 0.05-1; and the total area ratio of the fine-graphene-particles-free regions in the electromagnetic-wave-absorbing layer being 5% or less.
摘要翻译:一种电磁波吸收膜,其特征在于,具有包含精细石墨烯颗粒和粘结剂树脂的电磁波吸收层,所述电磁波吸收层通过重复多次施加包含1-10质量% 的薄片状石墨烯颗粒和0.05-5质量%的粘合剂树脂在有机溶剂中的塑料膜,然后干燥该分散体; 电磁波吸收层的厚度为2-15g / m 2(以每1μm2的细石墨烯颗粒的重量计); 电磁波吸收层中的粘结剂树脂与细石墨烯颗粒的质量比为0.05-1; 并且电磁波吸收层中的细石墨烯无颗粒的区域的总面积比为5%以下。
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, separating the thus produced quaternary alkyl-ammonium salt treated mineral clay mixture from the aqueous medium, in which the aqueous hormite clay slurry (a) being formed by (i.1) 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 the aqueous smectite clay slurry (b) being formed by (ii.1) 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 dispersions formed in (i.1) and (ii.1) to high speed fluid shear before carrying out step iii. and/or after having carried out step and wherein the fraction of one or more hormite clays employed in the formation of the aqueous hormite clay slurry (a) has an integral breadth B defined according of the reflection with Miller indices (110) of less than 0.800 scan units in an X-ray powder pattern recorded on an oriented glycolated sample of the hormite clay fraction using Cu-Kα1-radiation, in a liquid composition comprising at least one unsaturated polyester. 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.