发明名称 |
HIGH FREQUENCY WELDABLE POLYOLEFIN COMPOSITIONS INCLUDING POLAR POLYMERS |
摘要 |
A polyolefin-based composition showing improved weldability using high frequency(HF) includes (1) a base polymer selected from (a) a homogeneously branched, linear or substantially linear ethylene/alpha-olefin copolymer; (b) a homogeneously branched propylene/alpha-olefin copolymer; or (c) a combination thereof; and (2) at least one secondary component selected from (a) an ethylene vinyl acetate copolymer having from 5 to 40 wt% vinyl acetate; (b) an ethylene-ethyl acrylate having from 5 to 25 wt% ethyl acrylate; and (c) a combination thereof. The combination of the specified polyolefin with the specified secondary component, which is a polar polymer, makes these formulations HF weldable, with a cohesive welding failure, a weld strength for 10 mil thick film greater than 7 lb/in (1.23 N/mm) at a weld time of less than or equal to 6 seconds. The formulations may also exhibit good calendering processability and mechanical properties. |
申请公布号 |
WO2013096711(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
WO2012US71110 |
申请日期 |
2012.12.21 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
WEAVER, LAURA BAUERLE;HU, YUSHAN;REGO, JOSE M.;LI, GUANG MING;DANIEL, SHERRIKA D.;WALTON, KIM L. |
分类号 |
C08L23/08;C08L23/14 |
主分类号 |
C08L23/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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