Multilayered articles and method of manufacture thereof
A technology of multi-layer sheet and core layer, applied in the manufacture of multi-layer sheet, multi-layer sheet absorbing infrared radiation and its manufacture, and the field of multi-layer sheet, which can solve the problem of large air-conditioning units, aggravated problems, large-scale air-conditioning problems such as a decrease in the ability of the device to consume power
Active Publication Date: 2006-11-08
SABIC GLOBAL TECH BV
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Automotive engines are being downsized to reduce weight and improve fuel efficiency, and are less able to handle the power draw of large air conditioners
Businesses and governments have recently focused on the role of car air conditioners as a source of chlorofluorocarbons (CFCs) released into the atmosphere, a problem that will be exacerbated by increased cooling loads resulting in larger air conditioning units
Method used
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Examples
Experimental program
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Embodiment
[0114] This example was performed to demonstrate the use of cesium tungsten oxide in polycarbonate panels. Its composition is shown in Table 1 together with some properties. As can be seen in Table 1, the infrared absorbing additive was first mixed with polycarbonate to form a masterbatch. The masterbatch contained cesium tungsten oxide in an amount of 21 wt%, based on the weight of the masterbatch. The masterbatch for each sample was fed together with the components into the throat of the extruder and extruded to form pellets.
[0115] Sample #1 contained no UV absorbers and hindered phenols. Sample #2 contained no hindered phenols.
[0116] All samples were prepared by melt blending the compositions on a Werner & Pfleiderer 25 millimeter (mm) intermeshing twin-screw extruder at 300 rpm. The extruder is equipped with 8 barrels. Set the barrel temperature from the feed throat to the mold at 40-200-250-270-300-300-300-300°C. The extruded pellets were then dried and inject...
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Abstract
Disclosed herein is multilayered sheet comprising a core layer comprising a thermoplastic polymer and an IR absorbing additive; wherein the IR absorbing additive is a metal oxide; and a first cap layer comprising a thermoplastic polymer and an electromagnetic radiation absorbing additive; wherein a surface of the first cap layer is disposed upon and in intimate contact with a surface of the core layer. Disclosed herein too is a method for manufacturing a multilayered sheet comprising melt blending a composition comprising a thermoplastic polymer and an IR absorbing additive to produce a core layer; melt blending a composition comprising a thermoplastic polymer and an ultraviolet radiation absorber to produce a first cap layer; combining the core layer with the first cap layer in such a manner that the cap layer is disposed upon and in intimate contact with a surface of the core layer.
Description
Background technique [0001] The present disclosure relates to multilayer articles and methods of manufacture. In particular, the present disclosure relates to multilayer sheets for absorbing infrared radiation and methods of making the same. [0002] Absorption of excess sunlight by the interior surfaces of a vehicle, domestic dwelling or office building can result in increased interior temperatures, reduced occupant comfort, accelerated degradation of interior materials and increased need for large air conditioning units. Especially in vehicles, under the high static-soak conditions that can occur in vehicles parked in the hot summer sun, especially in desert climates, in closed cars, the surface temperature It can reach more than 100°C, and the entire thermal mass of the car can be raised to high temperature. [0003] Increasing the cooling load of air-conditioning units in vehicles to ameliorate thermal discomfort would go against the current major trends in the automotiv...
Claims
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IPC IPC(8): B32B27/18B29C47/06B32B37/00C08G63/54C08G63/64
CPCB32B27/08B32B27/18B32B27/20B32B27/36B32B27/365B32B2250/244B32B2264/102B32B2264/104B32B2264/12B32B2270/00B32B2274/00B32B2307/42B32B2307/71B32B2419/00B32B2605/00B32B2605/003Y10T428/31855B32B15/04B32B15/08
Inventor 乔斯·范登博格尔德约瑟夫斯·H·C·M·德克尔斯赖因·M·费伯伊尔科·范哈默斯维尔德克里斯蒂安纳斯·J·J·马斯
Owner SABIC GLOBAL TECH BV