- 专利标题: Hot melt adhesive composition including a crystalline block composite
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申请号: US15505485申请日: 2015-08-20
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公开(公告)号: US10233363B2公开(公告)日: 2019-03-19
- 发明人: Yi Jin , Kim L. Walton , Gary R. Marchand
- 申请人: Dow Global Technologies LLC
- 申请人地址: US MI Midland
- 专利权人: Dow Global Technologies LLC
- 当前专利权人: Dow Global Technologies LLC
- 当前专利权人地址: US MI Midland
- 国际申请: PCT/US2015/046008 WO 20150820
- 国际公布: WO2016/028961 WO 20160225
- 主分类号: C09J153/00
- IPC分类号: C09J153/00 ; C08L23/14 ; C09J123/14 ; C09J11/06 ; C08L53/00 ; C09J123/20
摘要:
A hot melt adhesive composition includes (A) 10-95 wt % of a random or homogeneous propylene-based interpolymer having: (i) a comonomer content of at least one of C2 and C4-10 a-olefin of 7 wt % to 49 wt % based on the total weight of the propylene-based interpolymer, (ii) an MWD of 4 or less, (iii) a density of 0.90 g/cc or less, and (iv) a Brookfield viscosity of less than 50,000 centipoise, (B) 1-60 wt % of a crystalline block composite comprising: (1) a crystalline ethylene based polymer; (2) a crystalline alpha-olefin based polymer derived from at least one of a C3-10 a-olefin; and (3) a block copolymer comprising 10-90 wt % of a crystalline ethylene block comprising greater than 90 mol % units derived from ethylene and comprising 10-90 wt % of a crystalline alpha-olefin block comprising greater than 90 mol % units derived from at least one of a C3-10 a-olefin, (C) Optionally, from greater than zero to 70 wt % tackifier, and (D) Optionally, from greater than zero to 40 wt % of at least one selected from the group of a wax and an oil.