Olefin acrylate emulsion copolymerization
AssigneeLubrizol Advanced Materials, Inc.
InventorsStuart L. Bartley, James D. Burrington, Shui-Jen Raymond Hsu, Naser Pourahmady
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Abstract
A polymerization process to copolymerize hydrophobic ethylenically unsaturated C4-C30. J olefins with polar monomers such as acrylates is described. The process utilizes an acid source to modify/catalyze the reactivity of the polar monomer and/or radically activated repeat unit from the polar monomer to promote incorporation of the ethylenically unsaturated olefin. The copolymer shows excellent adhesion to a variety of polymeric and/or polar substrates such as polyolefins, acrylate coatings, wood, etc.
Claims15
A polymeric reaction product from polymerizing in a media containing water with a free radical initiator source in the presence of a solid Brönsted acid a) at least one ethylenically unsaturated aliphatic olefin with 4 to 30 carbon atoms of the formula CH2═CR′R″ where R′ is a linear or branched C1 to C28 alkyl that may be linear, branched or cyclic and R″ is hydrogen or a linear or branched alkyl as set forth for R′, with the proviso that R′ and R″ together have no more than 28 carbon atoms with b) at least one ethylenically unsaturated monomer containing an electron withdrawing group, and c) optionally with other ethylenically unsaturated monomers forming a copolymer comprising repeating units within the same copolymer from said olefin and said monomer containing an electron withdrawing group.
A process for copolymerizing ethylenically unsaturated aliphatic olefin with ethylenically unsaturated monomer containing an electron withdrawing groups into a copolymer comprising:
- a) free radically copolymerizing in an aqueous medium at least one ethylenically unsaturated aliphatic olefin monomer with 4 to 30 carbon atoms of the formula CH2═CR′R″ where R′ is a linear or branched C1 to C28 alkyl that may be linear, branched or cyclic and R″ is hydrogen or a linear or branched alkyl as set forth for R′, with the proviso that R′ and R″ together have no more than 28 carbon atoms with at least one polar monomer utilizing a solid Brönsted acid to increase the incorporation rate of said olefin into said copolymer.
A polymeric reaction product from polymerizing in a media containing water utilizing a solid Brönsted catalyst a) at least one ethylenically unsaturated aliphatic olefin with 4 to 30 carbon atoms of the formula CH2═CR′R″ where R′ is a linear or branched C1 to C28 alkyl that may be linear, branched or cyclic and R″ is hydrogen or a linear or branched alkyl as set forth for R′, with the proviso that R′ and R″ together have no more than 28 carbon atoms with b) at least one ethylenically unsaturated monomer containing an electron withdrawing group, and c) optionally with other ethylenically unsaturated monomers forming a copolymer comprising repeating units within the same copolymer from said olefin and said monomer containing an electron withdrawing group.
Dependencies are inferred from the claim text.