摘要:
A curable film-forming composition is provided comprising (i) 10 to 90 percent by weight based on the total weight of resin solids in the film-forming composition of a crosslinking agent; (ii) 10 to 90 percent by weight of a polymer containing a plurality of functional groups reactive with the crosslinking agent; and (iii) 5 to 85 percent by volume of particles having a mean particle size less than 100 nm. The particles comprise 1 to 99 percent by weight of at least one metal oxide wherein the metal is selected from zinc, titanium, cerium, manganese, bismuth, copper, zirconium and iron.A multi-component composite coating composition is also provided, comprising a pigmented basecoat and a clear coat. The basecoat and/or clearcoat may be derived from the curable film-forming composition described above.Also provided are coated substrates in which the curable coating compositions or the multi-component composite coating compositions described above are applied to a substrate and cured to form a cured coating.Further provided is a pigment comprising particles having a mean particle size less than 100 nm and comprising 1 to 99 percent by weight metal oxide wherein the metal is selected from zinc, titanium, cerium, manganese, bismuth, copper, zirconium and iron and 1 to 99 percent by weight silica. These particles may be used in the curable film-forming compositions described above.
摘要:
Gray-black inclusion pigments are made using zirconium silicate as the encasing substance and carbon black particles as the inclusion phase by annealing a mixture of zirconium dioxide, a source for silicon dioxide, carbon black and mineralizers under reducing conditions at 900.degree.-1400.degree. C. The process uses zeolites with an SiO.sub.2 /Al.sub.2 O.sub.3 molar ratio of more than 4, preferably more than 10, as the SiO.sub.2 source. The depth of the color can be increased by also using an adhesion agent, especially silicon oil. The use of the zeolites facilities the employment of different zirconium dioxide qualities and permits the production of pigments with higher carbon black inclusion rates.
摘要翻译:灰黑色夹杂物颜料是通过在900-114℃的还原条件下退火二氧化锆,二氧化硅源,炭黑和矿化剂的混合物,使用硅酸锆作为包裹物质和炭黑颗粒作为夹杂相来制备的。 该方法使用SiO 2 / Al 2 O 3摩尔比大于4,优选大于10的SiO 2源的沸石。 也可以通过使用粘合剂,特别是硅油来增加颜色的深度。 使用沸石设备使用不同的二氧化锆质量,并允许生产具有较高碳黑夹杂率的颜料。
摘要:
The invention relates to new brown to gray inclusion pigments, based on zirconium silicate as casing substance, which are characterized in that they contain mixed crystals of the type (Fe.sub.1-x Mn.sub.x).sub.2 O.sub.3, in which x stands for a number in the range from 0.05 to 0.60, as colored compounds. The production takes place by means of annealing a mixture of SiO.sub.2 and ZrO.sub.2, or of precursors, in the presence of iron compounds and manganese compounds, in an Fe/Mn atomic ratio of 90:10 to 20:80, and mineralizers at 750.degree. to 1200.degree. C. The brown pigments are formed especially at temperatures of 850.degree. to 1000.degree. C. and if x is between 0.05 and 0.20. The gray pigments are formed especially at 1050.degree. to 1200.degree. C. and if x is 0.30 to 0.60.
摘要:
The preparation of gray-green unitary pigment bodies based on zirconium silicate-vanadium oxide wherein a mixture of zirconium oxide and silicon oxide in the presence of a vanadium and lithium compound is calcined above 600.degree. C. and wherein the amount of V.sub.2 O.sub.5 is more than 17 percent by weight and the amount of lithium compound added is such that the atom ratio Li/Li+V is from 0.1 to 0.5.
摘要翻译:制备基于硅酸锆 - 氧化钒的灰绿色整体色素体,其中在钒和锂化合物的存在下,氧化锆和氧化硅的混合物在600℃以上煅烧,其中V 2 O 5的量大于 17重量%,添加的锂化合物的量使得Li / Li + V的原子比为0.1〜0.5。
摘要:
The grayish-black encapsulated pigments contain carbon black particles with specific surface areas of 10 to 1000 m.sup.2 /g (BET) encapsulated in colorless crystals of zirconium silicate. In order to produce the pigments, mixtures of zirconium oxide with a particle size distribution (D50 values) between 7 and 10 .mu.m and a spec. surface between 2 and 4 m.sup.2 /g, silicon oxide, carbon black and mineralizers are heated under reducing conditions to 900.degree. to 1400.degree. C. and calcined for 0.5 to 8 hours and recalcined under oxidizing conditions to remove the non-included carbon black. The encapsulated pigments of the invention are suitable for the pigmented coloration of glazes.
摘要:
Pigments which are unstable at high temperatures are protected by inclusion in zirconium silicate crystals. Improved protected pigments are produced by the step of precipitating the constituents of the protected pigments from aqueous or non-aqueous solution. Especially applicable to pigments for ceramics such as those containing cadmium and pigments for use in plastics where contamination of foodstuffs is to be avoided.
摘要:
In the production of annealed products such as inorganic pigments wherein pigment-forming starting materials are mixed, optionally with the addition of auxiliary substances, thereafter annealed, optionally ground, washed and then dried, the improvement which comprises adding water to the mixture of pigment-forming materials to form an aqueous suspension containing at least about 10% by weight of H.sub.2 O, and applying said suspension to the surface of a hearth which has been heated to at least about 500.degree.C, thereby to heat said materials and to effect annealing. Advantageously the hearth is a horizontal, flat ring rotating about its center and in the course of one rotation of the ring the applied material is heated to the temperature of formation of the desired annealed product, calcined and removed from the surface of the ring before the one rotation has been completed.
摘要:
A plural phase ceramic zirconium silicate pigment is prepared that there are included in clear crystals of glaze stable zirconium silicate sulfides, selenides, tellurides of zinc, cadmium, mercury or mixed crystals of these compounds as a separate internal phase.