Multilayer interlayer and glass laminate

An interlayer and surface layer technology, applied in glass/slag layered products, layered products, transportation and packaging, etc., can solve problems such as the decline of sound insulation properties, and achieve the suppression of sound insulation performance decline, low sound insulation performance, and excellent sound insulation performance stability. Effect

Active Publication Date: 2019-02-05
KURARAY EURO GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0018] In addition, the plasticizer balance depends on temperature, so even if the interlayer film used for laminated glass has high sound insulation properties at normal temperature, it involves a problem that the sound insulation properties are greatly reduced in summer or winter

Method used

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  • Multilayer interlayer and glass laminate
  • Multilayer interlayer and glass laminate
  • Multilayer interlayer and glass laminate

Examples

Experimental program
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preparation example Construction

[0139] Although there is no particular limitation on the preparation method of the block copolymer, the block copolymer can be prepared, for example, by an anionic polymerization method, a cationic polymerization method, a radical polymerization method, or the like. For example, in the case of anionic polymerization, specific examples thereof include:

[0140] (i) A method of continuously polymerizing an aromatic vinyl monomer, a conjugated diene monomer, and subsequently an aromatic vinyl monomer by using an alkyllithium compound as an initiator;

[0141] (ii) A method of continuously polymerizing an aromatic vinyl monomer and a conjugated diene monomer by using an alkyllithium compound as an initiator and then adding a coupling agent to perform coupling;

[0142] (iii) A method of continuously polymerizing a conjugated diene monomer and subsequently an aromatic vinyl monomer by using a dilithium compound as an initiator; and the like.

[0143] In the case of using a conjuga...

Embodiment A-1 to A-5

[0336] The laminated glass obtained in the following examples A-1 to A-5, B-1 to B-3, C-1 to C-3, D-1 and comparative examples CEX-1 to CEX-6 was subjected to the following physical property evaluation.

[0337] Material

[0338] The materials used in the following examples are as follows.

[0339] Melt index (MI) is measured according to ASTM D1238 at a polymer melt temperature of 190°C and a weight of 2.16 kg.

[0340] Soda lime silica float glass (1.6 mm nominal thickness) used in the examples was obtained from Technical Glass Products, Inc. (Ivyland, PA, USA).

[0341] PVB1 - a single layer PVB interlayer sold under the trademark "BUTACITE" by Kuraray America, Inc. (Wilmington, DE, USA).

[0342] AC-PVB - A three-layer PVB acoustic interlayer marketed under the trademark "S-LEC Sound Acoustic Film" by Sekisui America, LLC.

[0343] CI1 - at least partially neutralized ethylene acid dimer ionomer obtained from E.I. du Pont de Nemours & Co. (Wilmington, DE, USA) (21.7%...

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Abstract

A multilayer interlayer containing a specified ionomer skin layer and an acoustic damping intermediate layer, and laminate containing such interlayer are provided, wherein the laminate has a desirablecombination of sound insulating, flexural strength and optical properties suitable for use in transportation and architectural end uses.

Description

technical field [0001] The present invention generally relates to a multilayer interlayer and glass laminates containing such an interlayer. More specifically, the present invention relates to a multilayer interlayer comprising at least one ionomer skin layer and at least one acoustically insulating interlayer, wherein glass laminates containing such interlayers have acoustic damping, acoustic A desired combination of barrier, flexural strength, flexural stiffness, and optical properties, and optionally solar heat shielding properties, that can allow for a reduction in the weight of the resulting glass laminate. Background of the invention [0002] While glass sheets for glazing etc. have excellent durability and optical properties, their acoustic damping and barrier properties (tan δ against bending vibrations) and breakage resistance may be insufficient for many end uses. This is especially true if the application requires lightweight glazing elements in which thin glass ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B17/10
CPCB32B17/10633B32B17/10678B32B17/10743B32B2250/03B32B7/02B32B27/08B32B27/18B32B27/302B32B27/308B32B2250/05B32B2264/102B32B2307/54B32B2307/71B32B2419/00B32B2605/00B32B17/10036B32B2307/102B32B2307/306B32B2307/546B32B2307/718B32B17/10779B32B2307/732B32B2307/51B32B17/00
Inventor S.本尼森C.A.史密斯S.M.汉森井口利之R.L.史密斯楠藤健小林卓哉
Owner KURARAY EURO GMBH
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