Multilayer polymeric sheets and light weight laminates produced therefrom

Multilayer polymeric sheets and light weight laminates produced therefrom

  • CN 105,555,528 A
  • Filed: 07/22/2014
  • Published: 05/04/2016
  • Est. Priority Date: 07/22/2013
  • Status: Active Application
First Claim
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1. a lamilated body, comprises multilayer polymer sheets and at least one extra play;

  • Wherein said multilayer polymer sheets comprises two skins and comprises internal layer, and wherein said two skins are positioned on the either side of described internal layer;

    Wherein said internal layer comprises ethane-acetic acid ethyenyl ester composition;

    AndWherein said two skins are identical or different, and comprise ionomer compositions;

    Described ionomer compositions comprises ionomer;

    And described ionomer is the product of neutralizing acid copolymer;

    Wherein said acid copolymer comprise derived from alpha-olefin copolymerization repetitive, about 0.1 % by weight to about 30 % by weight derived from a α

    with 3 to 8 carbon atoms, the copolymerization repetitive of β

    -ethylenic unsaturated carboxylic acid and optionally about 2 % by weight to about 25 % by weight derived from the 2nd α

    , the copolymerization repetitive of the ester of β

    -ethylenic unsaturated carboxylic acid, described ester has 4 to 12 carbon atoms;

    And described α

    , a β

    -ethylenic unsaturated carboxylic acid and the 2nd α

    , β

    -ethylenic unsaturated carboxylic acid are identical or different;

    Wherein said percentage by weight is based on the total weight of described acid copolymer, and the summation of the percentage by weight of copolymerized residues in described acid copolymer is 100 % by weight;

    And about 5% to about 100% of hydroxy-acid group is neutralized by one or more alkali comprising metal cation in wherein said acid copolymer;

    AndWherein said lamilated body have as measured by ASTME314 be greater than 25 Sound Transmission Class;

    Or wherein said lamilated body has as the effective bending stiffness by the about 3.0mm measured by ASTMC158 to about 5.0mm.

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