Insulating assembly for a storage vessel and process for its preparation
An adiabatic element, a heat-insulating technology, which is applied to household containers, chemical instruments and methods, containers, etc., can solve the problems of limited temperature stability of the adiabatic element, accelerated degradation of the adiabatic element, and difficulty in adjusting the shape of the element, etc.
Pending Publication Date: 2021-09-10
BASF AG
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Problems solved by technology
However, it is difficult to adjust the shape of the element, for example to change the thickness of the insulation covering the tank perimeter
Furthermore, insulating elements prepared according to the prior art—that is, by cutting suitable elements from foam blocks and covering said surface with foil—generally contain gases, such as oxygen, which when subjected to temperatures e.g. Oxygen accelerates the degradation of insulation elements when changing
Thus, the resulting insulating element has only limited temperature stability
Method used
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Experimental program
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Embodiment
[0106] 1. Preparation of Molded Foam Samples
[0107] 1.1 The insulation element of the present invention:
[0108] A diffusion-tight metal foil was placed at the bottom inside a mold measuring 400 mm x 300 mm x 80 mm. Secure the second foil to the inside of the mold's lid. Then with the help of a high pressure foaming machine (such as PU 30 / 80IQ, Elastogran GmbH) The formulated polyol component was mixed with the isocyanate component required to obtain an isocyanate index of 120 (eg Lupranate M20) at a discharge rate of 250 g / sec. A total of 432 g of the reaction mixture was injected into the above mold while maintaining the temperature of the mold at 40 degrees Celsius. The lid of the mold was closed and the reaction mixture was allowed to foam between two metal foils. It must be ensured that the air can be easily removed. After a demold time of 15 minutes, the insulating elements were removed and the temperature stability investigated as described below.
[0109] Deta...
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Abstract
The present invention relates to a process for preparing an insulating element for a tank comprising the steps of covering at least two surfaces of a mold with a metal foil; introducing a foam forming composition in the mold; and allowing a foam to form between the metal foils. The present invention further relates to the insulating element as such, an insulating assembly for a tank comprising insulating elements which are designed to fit closely to the periphery of the tank, wherein the insulating element is obtained or obtainable according to the process of the present invention; and also the use of said insulating assembly to insulate a tank, a tank wagon or a container.
Description
[0001] This application is a divisional application of the No. 201580007213.X invention patent application entitled "Heat insulation assembly for storage container and its preparation method". The original application corresponds to the international application PCT / EP2015 / 050651, the filing date is January 15, 2015, and the priority date is February 6, 2014. technical field [0002] The present invention relates to a method for the production of thermal insulation elements for tanks, comprising the steps of: covering at least two surfaces of a mold with a metal foil; introducing into said mold a composition for forming a foam; and making the foam in formed between metal foils. The invention also relates to said insulating element itself, an insulating assembly for tanks, comprising an insulating element designed to closely fit the perimeter of the tank, wherein said insulating element is obtained or obtainable according to the method of the invention ; Also relates to the us...
Claims
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IPC IPC(8): B29C44/12B32B15/04B32B33/00B65D81/38B29K705/00
CPCB29K2995/0015B32B5/20B29K2075/00B29C44/1233B32B2266/0278B32B2307/304B32B2439/00B32B2439/40B32B15/046B29C44/129B29C44/12B29K2105/04B29K2705/00B29L2031/712B32B2305/022
Inventor N·蒙梅耶M·埃尔宾B·弗里克
Owner BASF AG