发明名称 Polyolefin foams for footwear foam applications
摘要 A composition that can be used as foam composition is disclosed, which comprises or is produced from an ethylene acrylate dipolymer, an acid copolymer, and optionally a soft ethylene polymer. The ethylene acrylate dipolymer comprises repeat units derived from ethylene and at least one alkylacrylate. The acid copolymer comprises repeat units derived from ethylene and acrylic acid, methacrylic acid, or combinations thereof. The soft ethylene polymer comprises ethylene and an α-olefin, vinyl acetate, or combinations thereof.
申请公布号 US8772410(B1) 申请公布日期 2014.07.08
申请号 US201113293532 申请日期 2011.11.10
申请人 E I du Pont de Nemours and Company 发明人 Chou Richard T.
分类号 C08L33/02;C08L33/00;C08J9/00;A43B1/00;A43B1/10 主分类号 C08L33/02
代理机构 代理人
主权项 1. An article comprising, or produced from, an ethylene acrylate dipolymer, an acid copolymer, and optionally a copolymer of ethylene and an α-olefin wherein the article is a footwear foam having a density lower than 2 g/cc, a foam hardness of about 25 to about 55 Asker C; a split tear strength of at least 2.5 kg/cm; and a compression strength of at least 28 pounds/in2; the ethylene acrylate dipolymer is derived from ethylene and a comonomer selected from the group consisting of methacrylate, acrylate, C1 to C8 alkyl acrylate, and combinations of two or more thereof; and the ethylene acrylate dipolymer is substantially free of a third comonomer; and the acid copolymer comprises repeat units derived from ethylene and an acid monomer selected from the group consisting of (meth)acrylic acid, maleic acid, fumaric acid, maleic anhydride, fumaric anhydride, maleic acid monoester, fumaric acid monoester, and combinations of two or more thereof.
地址 Wilmington DE US