发明名称 PE-based crosslinked elastomeric foam with high filler loadings for making shockpads and articles used in footwear and flooring applications
摘要 Crosslinked foams having high filler loadings, which may be formed from A) a polyolefin having a crystallinity of 21 percent or less, an ethylene vinyl acetate copolymer having a vinyl acetate content of less than 15 mole percent, or a combination thereof; B) a polyolefin having a viscosity between 500 and 20,000 cP, as measured using ASTM D1084 (Brookfield Viscosity at 350° F.); and C) a filler, wherein the crosslinked foam includes from 10 to 80 parts filler per hundred parts of components A, B, and C, by weight. In other aspects of embodiments disclosed herein, the crosslinked foam may optionally include one or more of: D) at least one polyolefin having a crystallinity of greater than 21 weight percent, an ethylene vinyl acetate copolymer having a vinyl acetate content of 15 mole percent or greater, or a combination thereof; and E) a scorch retarder.
申请公布号 US9115252(B2) 申请公布日期 2015.08.25
申请号 US200812345056 申请日期 2008.12.29
申请人 DOW GLOBAL TECHNOLOGIES LLC 发明人 Prieto Miguel A.;Oswald Katja;Torres Enrique;Allgeuer Thomas T.
分类号 B32B5/22;C08J9/00;A43B13/18;C08L23/08;D06N7/00;C08L23/02 主分类号 B32B5/22
代理机构 Osha Liang LLP 代理人 Osha Liang LLP
主权项 1. A crosslinked foam for use in footwear or as a shockpad, the foam comprising the reaction product of: A. a first polyolefin having a crystallinity of 21 percent or less, an ethylene vinyl acetate copolymer having a vinyl acetate content of less than 15 mole percent, or a combination thereof; B. a second polyolefin having a viscosity between 500 and 20,000 cP, as measured using ASTM D1084, the second polyolefin having a crystallinity of greater than 21 percent; C. a filler, wherein the crosslinked foam comprises from 40 to 80 parts filler per hundred parts of components A, and B, by weight; D. a scorch retarder; and E. a third polyolefin having a crystallinity of greater than 21 percent; wherein the crosslinked foam, prior to crosslinking, comprises a thermoplastic composition, the thermoplastic composition comprising: i. 20 to 80 weight percent of component A; ii. 25 to 75 weight percent of component E; iii. greater than 0 to 6 weight percent of component B; iv. greater than 0 to 1 weight percent of component D; and v. 27 to 50 weight percent of component C; wherein the above weight percentages are based on the total weight of components A, B, C, D, and E.
地址 Midland MI US