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US 2015/0307754 A1Published application
Adhesives that include highly-plasticized cellulose esters and methods and articles relating thereto
AssigneeCelanese Acetate LLC
InventorsMichael Combs, Wendy Bisset, Lizbeth Milward, Adam Larkin, Naresh Budhavaram
Life of this patent
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Abstract
Adhesives may include a base polymer composition, optionally a tackifying resin, optionally a wax, and optionally additives (e.g., plasticizers, fillers, antioxidants, and the like, and combinations thereof), where the base polymer comprises a highly plasticized cellulose ester and optionally polymers traditionally used in pressure sensitive adhesives, hot melt pressure sensitive adhesives, or hot melt adhesives (e.g., ethylene vinyl acetate copolymers, polysiloxanes, and polyurethanes).
Claims20
An adhesive comprising:
- a base polymer composition that includes a highly plasticized cellulose ester and an additional polymer, the highly plasticized cellulose ester at about 1% to about 99% by weight of the base polymer, the additional polymer at about 1% to about 99% by weight of the base polymer, the highly plasticized cellulose ester comprising a cellulose ester and a plasticizer at about 15% or greater by weight of the highly plasticized cellulose ester, and the additional polymer being selected from the group consisting of a polyolefin, a polyalphaolefin, a polyester, an ethylene vinyl acetate copolymer, a polyvinyl acetate, a polyvinyl alcohol, a polyethyleneimine, a polyacrylate, a polymethacrylate, a polyacrylamide, a polyacrylonitrile, a polyimide, a polyamide, polyvinyl chloride, a polysiloxane, a polyurethane, polystyrene, a polyetheramide copolymer, a styrene-butadiene copolymer, a styrene-butadiene-styrene copolymer, a styrene-isoprene-styrene copolymer, a styrene-ethylene-butylene-styrene copolymer, a styrene-ethylene-propylene-styrene copolymer, butyl rubber, polyisobutylene, a isobutylene-isoprene copolymer, an acrylic, a nitrile, and a combination thereof.
An adhesive comprising:
- a base polymer composition that consists of a highly plasticized cellulose ester comprising a cellulose ester and a plasticizer at about 15% or greater by weight of the highly plasticized cellulose ester;
- and
- at least one selected from the group consisting of a tackifying resin, a wax, and any combination thereof.
An method comprising:
- blending a highly plasticized cellulose ester and an additional polymer, the highly plasticized cellulose ester at about 1% to about 99% by weight of the blend, the additional polymer at about 1% to about 99% by weight of the blend, the highly plasticized cellulose ester comprising a cellulose ester and a plasticizer at about 15% or greater by weight of the highly plasticized cellulose ester, and the additional polymer being selected from the group consisting of a polyolefin, a polyalphaolefin, a polyester, an ethylene vinyl acetate copolymer, a polyvinyl acetate, a polyvinyl alcohol, a polyethyleneimine, a polyacrylate, a polymethacrylate, a polyacrylamide, a polyacrylonitrile, a polyimide, a polyamide, polyvinyl chloride, a polysiloxane, a polyurethane, polystyrene, a polyetheramide copolymer, a styrene-butadiene copolymer, a styrene-butadiene-styrene copolymer, a styrene-isoprene-styrene copolymer, a styrene-ethylene-butylene-styrene copolymer, a styrene-ethylene-propylene-styrene copolymer, butyl rubber, polyisobutylene, a isobutylene-isoprene copolymer, an acrylic, a nitrile, and a combination thereof.
Dependencies are inferred from the claim text.