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Covering and method for trapping of emissions from surfaces

A covering and discharge technology, applied in chemical instruments and methods, separation methods, covering/lining, etc., which can solve problems such as insufficient investigation and research, incomplete understanding, discharge of chemical degradation products, etc.

Active Publication Date: 2013-04-17
CTRAP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages of using titanium in this application include the emission of potentially hazardous chemical degradation products
Furthermore, the fire hazard of this form of titanium has not been adequately investigated when combined with flammable materials (for example, when applied to flammable surfaces such as wooden walls of rooms)
[0008] Furthermore, the suitability of the compositions disclosed in US2009060778(A1), WO9216291(A1) or US2006024196(A1) to allow the escape of water vapor from underlying wet surfaces (e.g. a water-damaged wall of a house) is not fully appreciated

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0109] Example 1 - Reducing emissions of 1-octen-3-ol from wooden surfaces

[0110] Will flake (10x10cm) soaked in 1-octen-3-ol aqueous solution (100μL / 500ml) for 30 minutes and then stored at room temperature for 24 hours to obtain soaked 2 tablespoons grated (hydrophobic cross-linked polystyrene copolymer resin), four heaped spoons of activated carbon, and five heaped spoons of Ca(OH) 2 to be mixed and subsequently suspended in a glass of water. A sheet of tissue paper is coated with the obtained suspension, followed by sprinkling activated carbon on the wet surface to obtain treated paper. Cover a soaked piece with treated paper so that the painted side of the paper faces for paper-covered 24 hours after preparation one soaked covered with a piece of paper Each was placed in a separate container through which air was pumped at 2 l / min for 10 minutes, following standard procedures. Outgoing air was directed through sampling tubes supplied and analyzed by Che...

example 2-4

[0111] Example 2-4. Reducing Particulate and Vapor Emissions from Solid and Liquid Surfaces

[0112] In examples 3-4 below, the covering has dimensions of 0.1x0.2m. A 0.3 mm thick fiberglass sheet purchased at a local shop was used as the carrier. The collector consisted of 2.2 g of a mixture of commercially available ingredients: activated carbon spheres from Sigma (70%), phenol formaldehyde ion exchange resin XAD-4 from Sigma (10%), and Zeocat z-400 zeolite (1.2-2mm pellets) (20%). The collector mixture was attached to the fiberglass sheet by dots using a thin layer of wallpaper glue available at a local store. The interlayer consisted of a cellophane sheet with high permeability to water vapor and low permeability to air (including oxygen) and VOCs (Cellophane 335PS, purchased from Innovia), and was attached to the glass by small glue dots spaced every 5 cm Fiber sheet; collector is located between glass fiber sheet and cellophane sheet. Some experiments were performed ...

example 4

[0126] Example 4 - Comparison Between VOC Emissions Reduction from Aqueous Surfaces Using Covers with Semi-Permeable Barriers, Covers Without Semi-Permeable Barriers, and Semi-Permeable Barriers Only

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PUM

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Abstract

The present invention discloses a covering for placement on a surface, such as a wall on the inside of a house,for reduction or prevention of a singularity or a plurality of emissions, such as harmful emissions,released from the surface. The covering comprises a trapping agent and a carrier for retaining and supporting the trapping agent, such that the trapping agent can trap the singularity or plurality of emissions without being released from the carrier. The trapping agent is a substantially irreversible trapping agent independently selected from one or several of the group consisting of absorbing agents and adsorbing agents, such that the trapping agent is capable of fully or partly trapping the singularity or plurality of emissions substantially irreversibly by absorption or adsorption, or a combination of absorption and adsorption. The covering may further comprise a semi-permeable barrier. Methods for use and manufacturing of the covering are also disclosed.

Description

technical field [0001] The present invention relates to coverings placed on surfaces to reduce or prevent emissions from being released from the surfaces and methods thereof. Background technique [0002] Water damage to buildings resulting in dampness is common throughout the world due to unsatisfactory construction methods and maintenance of existing buildings. This problem can be expected to intensify as global warming leads to more precipitation in many parts of the world in the future. Indoor humidity is associated with adverse health effects and / or unpleasant odors and is, for example, estimated to be responsible for 30% of all asthma cases in the United States. Adverse effects and / or bad odors are due to various emissions from wet building parts such as wood, concrete, glue or plaster in affected buildings. These discharges form in different ways due to the action of water on specific substances. For example, materials such as wood, paper, and plasterboard that con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L9/014D06N7/04E04B1/62E04B1/92
CPCE04F13/002B01J20/321B01J20/3212B01J20/3223B01J20/3236B01J20/3238B01J20/324B01J20/327B01J20/3272A61L2209/22Y10T29/49885Y10T428/2495Y10T156/10Y10T29/49888Y10T442/69Y10T428/249982Y10T428/249981Y10T428/249953Y10T442/60Y10T442/681A61L9/00B01J20/20B01J20/24B01J20/26B01J20/28035B01J20/28038B01D53/04B01D53/0407B01D53/229B01D53/82B01J20/3231B32B3/26B32B5/022B32B38/00E04B1/92
Inventor L·拉尔森
Owner CTRAP