Biocidal plastic material
AssigneeLucite International UK Limited
InventorsGordon Maxwell Beverly, Michael John Ellacott
Life of this patent
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Abstract
A plastics material comprises an acrylic polymer containing 5-50% of a rubbery copolymer and a biocidal compound. The plastic material is useful as a component of a refrigerator, worktop etc. or as a building material. The material may be used as a coating for a substrate. Method of manufacturing laminate materials comprising the plastics material are also claimed.
Claims25
A plastics material having biocidal activity comprising a melt compounded acrylic polymeric material comprising a homopolymer of a C1-6alkyl(C0-8alk)acrylate or a copolymer of methyl methacrylate and up to 20% of a comonomer of a C1-6alkyl(C0-8alk)acrylate, and a biocidal compound wherein said acrylic material incorporates from 5% to 50% by weight of the total polymer present of a rubbery copolymer.
A laminate material comprising a substrate material in contact with a layer of a plastics material having biocidal activity comprising a melt compounded acrylic polymeric material comprising a homopolymer of a C1-6alkyl(C0-8alk)acrylate or a copolymer of methyl methacrylate and up to 20% of a comonomer of a C1-6alkyl(C0-8alk)acrylate, and a biocidal compound wherein said acrylic material incorporates from 5% to 50% by weight of the total polymer present of a rubbery copolymer.
A method of manufacturing a laminate material comprising extruding a plastics material having biocidal activity comprising a melt compounded acrylic polymeric material comprising a homopolymer of a C1-6alkyl(C0-8alk)acrylate or a copolymer of methyl methacrylate and up to 20% of a comonomer of a C1-6alkyl(C0-8alk)acrylate, and a biocidal compound wherein said acrylic material incorporates from 5% to 50% by weight of the total polymer present of a rubbery copolymer.
A plastic composition having biocidal activity consisting essentially of a melt compounded acrylic polymeric material comprising a homopolymer of a C1-6alkyl(C0-8alk)acrylate, or a copolymer of methyl methacrylate and up to 20% of a comonomer of a C1-6alkyl(C0-8alk)acrylate, a biocidal compound and a rubbery copolymer, wherein said rubbery copolymer is present in an amount from 5% to 50% based on the total weight of polymeric components.
Dependencies are inferred from the claim text.