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COMPOSITIONS WITH FREEZE THAW STABILITY

  • US 20110223125A1
  • Filed: 02/14/2011
  • Published: 09/15/2011
  • Est. Priority Date: 02/12/2010
  • Status: Active Grant
First Claim
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1. A freeze thaw stable composition with improved freeze thaw stability, comprising:

  • a continuous phase comprising;

    a freeze thaw stability polymer selected from at least one member of the group consisting of;

    a copolymer having a weight average molecular weight of greater than or equal to about 30,000 grams per mole,a blend of a first polymer and a second polymer,a crosslinked alkali swellable acrylate copolymer, andat least one polymerizable reactive alkoxylated acrylate monomer;

    A. said copolymer having a weight average molecular weight of greater than or equal to about 30,000 grams per mole comprising;

    (a) one or more first monomeric units, each independently comprising at least one bicycloheptyl-polyether, bicycloheptenyl-polyether or branched (C5-C50)alkyl-polyether group per monomeric unit, wherein the bicycloheptyl-polyether or bicycloheptenyl-polyether group may optionally be substituted on one or more ring carbon atoms by one or two (C1-C6)alkyl groups per carbon atom,(b) one or more second monomeric units, each independently comprising at least one pendant linear or branched (C5-C50)alkyl-polyether group per monomeric unit, provided that the first and second monomeric units cannot both comprise a branched (C5-C50)alkyl-polyether group, and(c) at least one polymerizable functional group per molecule of copolymer,B. said blend of said first polymer comprising one or more first monomeric units, each independently comprising at least one bicycloheptyl-polyether, bicycloheptenyl-polyether or branched (C5-C50)alkyl-polyether group per monomeric unit, wherein the bicycloheptyl-polyether or bicycloheptenyl-polyether group may optionally be substituted on one or more ring carbon atoms by one or two (C1-C6)alkyl groups per carbon atom at least one polymerizable functional group per molecule of first polymer, and said second polymer comprising one or more second monomeric units, each independently comprising at least one pendant linear or branched (C5-C50)alkyl-polyether group per monomeric unit, provided that the first and second monomeric units each have a weight average molecular weight of greater than or equal to about 30,000 grams per mole and cannot both comprise a branched (C5-C50)alkyl-polyether group, and at least one polymerizable functional group per molecule of second polymer;

    C. said crosslinked alkali swellable acrylate copolymer comprising from about 20% to about 80% by weight of at least one carboxylic acid monomer comprising acrylic acid, methacrylic acid, itaconic acid, fumaric acid, crotonic acid, aconitic acid, or maleic acid, or combinations thereof;

    from about 80% to about 15% by weight of at least one alpha, beta-ethylenically unsaturated monomer; and

    from about 0.01 to about 5% by weight of at least one polyunsaturated compound useful in forming a partially or substantially crosslinked three dimensional network,wherein the at least one alpha, beta-ethylenically unsaturated monomerhas the formula;

    CH2

    CXY, wherein X is H and Y is —

    COOR, —

    C6H4R′

    , —

    CN, —

    CONH2, —

    Cl, —

    NC4H6O, NH(CH2)3COOH, —

    NHCOCH3, —

    CONHC(CH3)3, —

    CO—

    N(CH3)2;

    or X is CH3 and Y is —

    COOR, —

    C6H4R′

    , —

    CN, or —

    CH═

    CH2;

    or X is Cl and Y is Cl, wherein R is C1-C18 alkyl, or hydroxy C2-C18 alkyl, R′

    is H or C1-C18 alkyl;

    orhas the formula;

    CH2

    CH(OCOR1), wherein R1 is C1-C18 alkyl;

    orhas the formula;

    CH2

    CH2 or CH2

    CHCH3; and

    D. said at least one polymerizable reactive alkoxylated acrylate monomer having the structural formula selected from the group consisting of structural formula IA or structural formula IB;

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