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Polyalkyl methacrylate plastisols with improved flow properties

  • US 6,355,712 B1
  • Filed: 03/28/2000
  • Issued: 03/12/2002
  • Est. Priority Date: 03/30/1999
  • Status: Expired due to Fees
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First Claim
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1. A plastisol composition, comprising:

  • 1) a copolymer composed of monomer components comprising;

    a) 0-90 wt.-% of a monomer selected from the group consisting of an acrylic acid alkyl ester with at least 3 carbon atoms in the alkyl radical, a methacrylic acid allyl ester with at least 2 carbon atoms in the alkyl radical, styrene and mixtures thereof;

    b) 10-99 wt.-% of monomer selected from the group consisting of methyl methylacrylate and ethyl acrylate;

    c) 1-20 wt. % of a hydrophilic compound of the formula (III);

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    wherein;

    R1 is —

    CH3, —

    H;

    R2 is —

    CH2—

    ;

    —

    (CH2) n—

    , wherein n is 2, 3, or 4; and

    wherein the —

    (CH2)n—

    group is branched or unbranched;

    R3 is —

    OH, —

    NH2, —

    N(R4)2;

    wherein R4 is —

    CH3, or —

    CH2—

    CH3;

    d) 0.01-1 wt. % of a crosslinking agent or a mixture of crosslinking agents; and

    e) 0-20 wt. % of other monomers that are radically polymerizable;

    wherein the relative amounts of components (a)-(e) add up to 100 wt. % of the monomer components; and

    2) a plasticizer.

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