Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Durable low emissivity window film construction

A radiation curing and irradiation technology, applied in building structures, windows/doors, building components, etc., can solve problems such as low emissivity

Active Publication Date: 2021-10-22
3M INNOVATIVE PROPERTIES CO
View PDF19 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While a typical glass or plastic window film surface has a thermal emissivity in the range of 0.84 to 0.91, insulating materials such as aluminum foil can have emissivity as low as 0.02

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Durable low emissivity window film construction
  • Durable low emissivity window film construction
  • Durable low emissivity window film construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[2662] The present invention is more particularly described in the following examples which are intended to be illustrative only, since many modifications and variations within the scope of the invention will be apparent to those skilled in the art. All parts, percentages and ratios mentioned in the following examples are by weight unless otherwise indicated. Reagents were purchased from Sigma-Aldrich Corporation, St. Louis, MO unless otherwise indicated.

[2663] Material

[2664]

[2665]

[2666] Emissivity

[2667] Emissivity was measured according to ASTM C1371 using a model AE1 emissivity meter and read directly from a model RD1 calibrated digital voltmeter, both purchased from Devices and Services Company, Dallas, TX.

[2668] Visible light transmittance

[2669] Spectral properties of the films were measured according to ASTM E903 in a Perkin Elmer Lambda 1050 spectrophotometer. The transmission and reflection spectra were format converted for software ...

preparation example 1

[2691] To a 500 mL round bottom flask equipped with an overhead stirrer was added 140.52 g of 3-trimethoxysilylpropyl isocyanate and 0.22 g of DBTDL and heated to 55°C. Using the dropping funnel, 79.48 g of 2-hydroxyethyl acrylate was added over about one hour. At a total time of about 4 hours, the products shown below were isolated and bottled:

[2692]

Embodiment 1

[2709] A multilayer optical stack comprising zinc tin oxide, silver alloy, silicon oxide or oxynitride and a radiation cured acrylate layer is deposited on a PET film substrate. Use similar to WO2009085741 image 3 The vacuum coating equipment described in forms all the individual layers without breaking the vacuum. will be traded under the trade name Melinex TM 454 0.075 mm thick PET film from DuPont Teijin Films was used for the substrate. No distinction is made between the sides of the substrate to be coated. The layers are deposited in the following order:

[2710] Layer 1: The roll of substrate is loaded into the vacuum coater and the chamber is pumped down to less than 1 x 10 -4 Support the base pressure. The film was exposed to N using a titanium target operated at 200 W 2 Plasma pretreatment process. An acrylate monomer mixture comprising SR833S (Arkema) and CN147 (Arkema) in a 94:6 ratio was flashed, condensed on a PET film substrate, and deposited using an el...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

In certain embodiments, the present disclosure relates to low-E films and articles comprising the same. Other embodiments relate to methods of reducing the emissivity of an article comprising the use of low emissivity films. In some embodiments, the low emissivity film includes a metal layer and a pair of layers, one layer comprising a metal oxide such as zinc tin oxide and the other layer comprising a silicon compound adjacent to each of two sides of the metal layer. This type of assembly can be used for a variety of purposes, including as a solar insulation film. These constructions are useful, for example, as window films on glazing units for reducing the trans-film transmission of infrared radiation in both directions.

Description

[0001] In certain embodiments, the present disclosure relates to low-E films and articles comprising the same. Other embodiments relate to methods of reducing the emissivity of an article comprising the use of low emissivity films. In some embodiments, the low emissivity film includes a metal layer and a pair of layers, one layer comprising a metal oxide such as zinc tin oxide and the other layer comprising a silicon compound adjacent to each of two sides of the metal layer. This type of assembly can be used for a variety of purposes, including as a solar insulation film. These constructions are useful, for example, as window films on glazing units for reducing the trans-film transmission of infrared radiation in both directions. Background technique [0002] Various methods are used to reduce energy consumption in commercial or residential buildings and the automotive industry to help maintain a comfortable temperature in the passenger cabin with minimal energy consumption. ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09J7/30B32B15/04
CPCC08K3/22C08K2003/282C09J2400/163C09J2433/006C09J7/29B32B2255/20B32B27/36B32B2307/204B32B2255/205B32B7/02B32B27/34B32B2250/24B32B27/30B32B2307/704B32B2255/26B32B27/08B32B7/06B32B27/283B32B27/304B32B27/365B32B2270/00B32B2307/712B32B2307/414B32B2307/73B32B27/302B32B27/286B32B2307/422B32B2307/584B32B2255/10B32B2255/28B32B27/40B32B2307/714B32B2307/732B32B2419/00B32B2307/554B32B27/281B32B2307/42B32B27/32B32B27/308B32B2307/412B32B7/12B32B27/325B32B2307/748B32B2307/402C09J2301/122C09J2301/41C09J2301/302C08J7/0423G02B5/208G02B5/26E06B2009/2417C09J2467/006B32B33/00E06B9/24C09J2301/16C23C14/18C23C14/02C23C14/0676C23C14/28B32B2307/416C09J2301/312C23C14/35C23C14/081C23C14/086C23C14/12
Inventor 拉古纳特·帕迪亚斯格雷戈里·F·金斯蒂芬·P·梅基
Owner 3M INNOVATIVE PROPERTIES CO
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com