发明名称 |
POLYOLEFIN COMPOSITION HAVING A HIGH BALANCE OF STIFFNESS, IMPACT STRENGTH AND ELONGATION AT BREAK AND LOW THERMAL SHRINKAGE |
摘要 |
Polymer composition showing an improved balance of flexural modulus, IZOD impact strength and elongation at break comprising (percent by weight): A) a polymer blend comprising: A1) 50-70% of a crystalline propylene homopolymer or copolymer; and A2) 30-50% of one or more copolymer(s) of ethylene with one or more C4-C10α-olefin(s) containing from 15 to 35% of said C4-C10α-olefin(s); said polymer blend (A) having values of MFR equal to or higher than 10 g/10 min., a total content C4-C10α-olefin(s) equal to or higher than 8% and an intrinsic viscosity value of the fraction soluble in xylene at room temperature of from 1.3 to 2 dl/g, the amounts of (A1) and (A2) being referred to the total weight of the polymer blend; and optionally B) 1-15% of an elastomeric polymer different from A2), having a hardness (Shore A, ASTM D-2240) value equal to or lower than 90 points; and/or C) 0.5-20% of a mineral filler; the amounts of optional components (B) and (C) being referred to the total weight of the composition. |
申请公布号 |
CA2569656(A1) |
申请公布日期 |
2005.12.22 |
申请号 |
CA20052569656 |
申请日期 |
2005.05.30 |
申请人 |
BASELL POLIOLEFINE ITALIA S.P.A. |
发明人 |
GARAGNANI, ENEA;PELLICONI, ANTEO |
分类号 |
C08L23/10;C08F210/16;C08F297/08;C08L23/08;C08L23/12;C08L23/14;C08L23/16;C08L91/00 |
主分类号 |
C08L23/10 |
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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