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1. WO2006128091 - MULTILAYER LAMINATES COMPRISING TWISTED NEMATIC LIQUID CRYSTALS

Publication Number WO/2006/128091
Publication Date 30.11.2006
International Application No. PCT/US2006/020655
International Filing Date 26.05.2006
IPC
B32B 17/10 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or fibres of glass, slag or the like
06comprising glass as the main or only constituent of a layer, next to another layer of a specific substance
10of synthetic resin
CPC
B32B 17/10
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
B32B 17/10005
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10005laminated safety glass or glazing
B32B 17/10018
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10005laminated safety glass or glazing
10009characterized by the number, the constitution or treatment of glass sheets
10018comprising only one glass sheet
B32B 17/10036
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10005laminated safety glass or glazing
10009characterized by the number, the constitution or treatment of glass sheets
10036comprising two outer glass sheets
B32B 17/10458
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10005laminated safety glass or glazing
10165Functional features of the laminated safety glass or glazing
10431Specific parts for the modulation of light incorporated into the laminated safety glass or glazing
1044Invariable transmission
10458Polarization selective transmission
B32B 17/10761
BPERFORMING OPERATIONS; TRANSPORTING
32LAYERED PRODUCTS
BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
17Layered products essentially comprising sheet glass, or glass, slag, or like fibres
06comprising glass as the main or only constituent of a layer, next to another layer of a specific ; material
10of synthetic resin
10005laminated safety glass or glazing
1055characterized by the resin layer, i.e. interlayer
10761containing vinyl acetal
Applicants
  • E. I. DU PONT DE NEMOURS AND COMPANY [US]/[US] (AllExceptUS)
  • SILVERMAN, Lee, A. [US]/[US] (UsOnly)
  • GOLDFINGER, Marc, B. [US]/[US] (UsOnly)
  • HAYES, Richard, A. [US]/[US] (UsOnly)
Inventors
  • SILVERMAN, Lee, A.
  • GOLDFINGER, Marc, B.
  • HAYES, Richard, A.
Agents
  • KULLER, Mark, D.
Priority Data
60/685,29226.05.2005US
60/685,71927.05.2005US
60/754,67829.12.2005US
60/754,90429.12.2005US
60/754,97829.12.2005US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) MULTILAYER LAMINATES COMPRISING TWISTED NEMATIC LIQUID CRYSTALS
(FR) LAMINES MULTICOUCHES A HAUTE RESISTANCE COMPRENANT DES CRISTAUX LIQUIDES NEMATIQUES EN HELICE
Abstract
(EN)
Provided are multilayer laminates having one or more layers comprising twisted nematic liquid crystals and one or more layers of a polymeric sheet comprising a polymer with a modulus of 20,000 psi (138 MPa) or less. The twisted nematic liquid crystal layers reflect infrared radiation. Thus, the multilayer laminates are useful to reduce the transmission of infrared energy. For example, in some embodiments the multilayer laminates are useful as windows to reduce energy consumption necessary to cool the interior of a structure such as an automobile or building. Preferably, the multilayer laminates retain the beneficial properties of safety glass. The multilayer laminates may include additional layers such as infrared absorbing layers, half wave plates, and the like, to minimize the transmission of infrared energy. The multilayer laminates may also include further additional layers such as polymeric films, polymeric sheets, rigid sheets, and the like.
(FR)
Laminés multicouches constitués d'une ou de plusieurs couches contenant des cristaux liquides nématiques en hélice, et d'une ou de plusieurs couches de feuille polymère renfermant un polymère dont le module est compris entre 20 000 psi (138 MPa) and 100 000 psi (690 MPa). Les couches de cristaux liquides nématiques en hélice reflètent le rayonnement infrarouge. Ces laminés multicouches permettent donc d'atténuer la transmission de l'énergie infrarouge. Dans certains modes de réalisation, par exemple, les laminés multicouches s'utilisent comme vitres pour réduire la consommation d'énergie nécessaire au refroidissement de l'intérieur d'une structure telle qu'une automobile ou un bâtiment. Les laminés multicouches conservent de préférence les propriétés avantageuses du verre de sécurité. Ils peuvent inclure des couches supplémentaires telles que des couches d'absorption des infrarouges, des lames demi-onde et analogues capables de réduire la transmission de l'énergie infrarouge. Les laminés de l'invention peuvent également comporter d'autres couches telles que des films polymères, des feuilles polymères, des feuilles rigides et analogues.
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