Ionomer compositions with low haze and high moisture resistance and articles comprising the same

Ionomer compositions with low haze and high moisture resistance and articles comprising the same

  • CN 102,325,812 A
  • Filed: 11/02/2009
  • Published: 01/18/2012
  • Est. Priority Date: 12/31/2008
  • Status: Active Application
First Claim
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1. comprise sodium/zinc and mix ionomeric compsn, wherein said sodium/zinc mixing ionomer is the neutralized reaction product of precursor acids multipolymer;

  • And further wherein(a) said precursor acids multipolymer comprises the copolymerization units of the terminal olefin with 2 to 10 carbon atoms and by the α

    with 3 to 8 carbon atoms of the gross weight of said precursor acids multipolymer about 20 to about 30 weight %, the copolymerization units of β

    -ethylenic unsaturated carboxylic acid;

    Wherein measure down with 2.16kg at 190 ℃

    according to ASTM D1238, said precursor acids multipolymer has about 10 to about 4000 and restrains/10 minutes melt flow rate(MFR);

    And the sum of wherein working as by the hydroxy-acid group that exists in the said precursor acids multipolymer is neutralized to about 40% to about 90% content;

    During with the counter ion that comprise carboxylate group and form by sodium ion basically;

    Said precursor acids multipolymer produces the sodium ionomer;

    Said sodium ionomer has and does not detect or less than the enthalpy that solidifies of about 3.0 Jiao/grams, the said enthalpy that solidifies adopts determine with dsc method according to ASTM D3418;

    And(b) said sodium/zinc mixing ionomer comprises carboxylate group and counter ion combination;

    The combination of said counter ion is by the normal sum of carboxylate group in said sodium/zinc mixing ionomer, forms to the zinc cation of about 1 equivalent % to the sodium cation of about 99 equivalent % and complementally about 99 by about 1 basically.

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