Abstract:
A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A′ from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B′ from a pigmented coating composition B onto the substrate provided with coating layer A′, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A′ exhibits low NIR absorption, wherein the pigment content of coating composition A comprises
Abstract translation:一种用于生产深色多层涂层的方法,包括以下连续步骤:(1)将不透明涂层A'从着色的溶剂或水性涂料组合物A施加到基材上,(2) 将涂层B'从着色涂料组合物B涂布到具有涂层A'的基材上,其中涂料组合物A的颜料含量为90-100重量份。 至少一种铝片状颜料的%和0〜10重量% 至少一种另外的颜料的%,其以使得NIR不透明涂层A'显示低NIR吸收的方式选择,其中涂料组合物A的颜料含量包含<90wt。 10至80nm厚的铝薄片颜料的%,其中涂料组合物B的颜料含量为50至100wt。 %的至少一种低NIR吸收的黑色颜料和0至50wt。 至少一种另外的颜料的%,其以这样的方式选择,使得涂层B'显示低的近红外吸收,并且深色多层涂层表现出亮度L *(根据CIEL * a * b *,DIN 6174),其以相对于垂直角45度的照明角度和与镜面成45度的观察角度测量为至多10个单位,其中, %等于100wt。 %,并且其中涂层A'和B'固化。
Abstract:
A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A′ from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B′ from a pigmented coating composition B onto the substrate provided with coating layer A′, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one 10 to 80 nm thick aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A′ exhibits low NIR absorption, wherein the pigment content of coating composition B consists 50 to 100 wt. % of at least one black pigment with low NIR absorption and 0 to 50 wt. % of at least one further pigment, which is selected in such a way that coating layer B′ exhibits low NIR absorption and that the dark-color multi-layer coating exhibits a brightness L* (according to CIEL*a*b*, DIN 6174), measured at an illumination angle of 45 degrees to the perpendicular and an observation angle of 45 degrees to the specular, of at most 10 units, wherein the sum of the respective wt. % equals 100 wt. %, and wherein the coating layers A′ and B′ are cured.
Abstract translation:一种用于生产深色多层涂层的方法,包括以下连续步骤:(1)将不透明涂层A'从着色的溶剂或水性涂料组合物A施加到基材上,(2) 将涂层B'从着色涂料组合物B涂布到具有涂层A'的基材上,其中涂料组合物A的颜料含量为90-100重量份。 至少一个10至80nm厚的铝片状颜料和0至10wt。 至少一种另外的颜料的%,其以使得NIR不透明涂层A'显示低NIR吸收的方式选择,其中涂料组合物B的颜料含量为50至100wt。 %的至少一种低NIR吸收的黑色颜料和0至50wt。 至少一种另外的颜料的%,其以这样的方式选择,使得涂层B'显示低的近红外吸收,并且深色多层涂层表现出亮度L *(根据CIEL * a * b *,DIN 6174),其以相对于垂直角45度的照明角度和与镜面成45度的观察角度测量为至多10个单位,其中, %等于100wt。 %,并且其中涂层A'和B'固化。
Abstract:
A process for the production of a multi-layer composite comprising applying a coating layer from a pigmented coating composition A onto the back face of a transparent plastic film and then applying an NIR-opaque coating layer from a pigmented coating composition B, wherein the pigment content of coating composition A consists 50 to 100 wt. % of black pigment with low NIR absorption and 0 to 50 wt. % of further pigment, which is selected in such a way that coating layer A′ exhibits low NIR absorption and that the multi-layer composite exhibits a brightness L* of at most 10 units, wherein the pigment content of coating composition B is either a pigment content PC1 consisting 90 to 100 wt. % of aluminum flake pigment and 0 to 10 wt. % of further pigment, which is selected in such a way that NIR-opaque coating layer B′ exhibits low NIR absorption, or a pigment content PC2 comprising
Abstract:
A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A′ from a solventborne coating composition A to a substrate, (2) applying a coating layer B′ from a solventborne coating composition B onto the substrate provided with coating layer A′, (3) subjecting the coated substrate obtained in step (2) to a drying step, (4) applying a clear coat layer, and (5) curing the coating layers simultaneously; wherein both coating compositions A and B comprise binders and crosslinkers comprising melamine-formaldehyde resin crosslinker, wherein both coating compositions A and B comprise certain proportions of cellulose ester binder and NAD binder and/or sheet silicate and/or fumed silica and/or urea SCA and/or polyolefine wax, wherein the pigment content of coating composition A consists 90 to 100 wt. % of aluminum flake pigment and 0 to 10 wt. % of further pigment, wherein the pigment content of coating composition B consists 50 to 100 wt. % of black pigment with low NIR absorption and 0 to 50 wt. % of further pigment.
Abstract:
The invention relates to a method for verifying the leakproofness of a container used for accommodating preferably liquid media as well as a plastic container that is composed of several segments (22a, 24). The invention further relates to a method for producing a container from several segments and a container comprising a closed barrier layer. The disclosed container is composed of at least two segments (22a, 24) which are joined together circumferentially at the edges of the faces thereof by means of one respective welded connection (16, 17) such that an enclosed space is formed. An inner pressure that is different from the ambient pressure is applied within the enclosed space while a change in pressure is monitored.
Abstract:
A process for the production of special effect multi-layer coatings, comprising the successive steps: (1) applying a 10 to 30 μm thick base coat layer onto a substrate provided with an EDC primer, (2) applying a clear coat layer onto the base coat layer, (3) jointly curing the base coat and clear coat layers, wherein the base coat layer is applied in a first layer and in a second layer; the first layer comprises a modified water-borne base coat produced by mixing an unmodified water-borne base coat with an admixture component and the second layer comprises the unmodified water-borne base coat, wherein the unmodified water-borne base coat has a ratio by weight of pigment content to resin solids content of 0.05:1 to 0.6:1 and wherein the pigment content of the unmodified water-borne base coat comprises at least one metal flake pigment having a thickness of 10 to 100 nm corresponding to a proportion of 0.1 to 5 wt. %, relative to the resin solids content of the unmodified water-borne base coat and at least one additional special effect pigment and wherein the composition of the pigment content is such that the UV light transmission through the base coat layer formed of the first and second layers is less than 0.1% in the wavelength range of from 290 to 380 nm and less than 0.5% in the wavelength range of from 380 to 400 nm.
Abstract:
A method for manufacturing large-volume hollow bodies of plastics material with multiple-layer walls. The apparatus defines an accumulation chamber and has a nozzle outlet. A plurality of material layers are joined into a multiple-layer plastic material melt within a tubular plunger which is movable in axial direction of the apparatus. The multiple-layer plastics material melt is conducted in a flow duct which widens in the shape of a funnel toward the accumulation chamber. The tubular plunger is forced by the melt to move in axial direction away from the nozzle outlet. The material melt is ejected as a multiple-layer extruded material by moving the tubular plunger in axial direction toward the nozzle outlet.
Abstract:
A honing process using a honing machine as a honing arbor or spindle, the travel or stroke limit points of which can be set, and that also has a measuring device, with at least one sensor, mounted on the honing tool for the workpiece that is to be honed, as well as a regulating mechanism for controlling the honing process. The workpiece is measured during the honing process via the sensors, and during at least one measurement procedure, at least one parameter of the honing procedure is at least reduced.