| 发明名称 |
Polyolefinic resin and a resin composition comprising said resin |
| 摘要 |
A propylenic resin which is a homopolymer of propylene or a copolymer of propylene, has (i) intrinsic viscosity [ eta ] measured in decaline at the temperature of 135 DEG C. in the range of 0.5 to 10 deciliter/g and (ii) content of insoluble fraction in boiling n-heptane (W) in the range of 10 to 99 weight % and shows (iii) relation between relaxation time of rubber component measured by pulse NMR at the temperature of 30 DEG C. [T2HR(30): mu s], relaxation time of rubber component measured by pulse NMR at the temperature of 80 DEG C. [T2HR(80): mu s] and the content of insoluble fraction in boiling n-heptane (W) satisfying the following equations:T2HR(80)</=670-2.2xWT2HR(80)/T2HR(30)</=8.8+0.086xWand a propylenic resin composition comprising (A) 10 to 95 weight % of the propylenic resin, particularly a propylenic resin which is at least one kind selected from a homopolymer of propylene and copolymers of propylene containing 4 mol % or less of other olefinic units, and (B) 90 to 5 weight % of a propylenic random copolymer having intrinsic viscosity [ eta ] measured in decaline at the temperature of 135 DEG C. in the range of 0.5 to 10 deciliter/g and containing 10 to 80 mol % of olefinic units other than the propylenic unit are disclosed. The polyolefinic resin and the composition have high heat resistance and excellent mechanical properties in a wide range of modulus, show small temperature dependence of the mechanical properties and do not cause stickiness on the surface of molded articles.
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| 申请公布号 |
US5986007(A) |
申请公布日期 |
1999.11.16 |
| 申请号 |
US19980063004 |
申请日期 |
1998.04.20 |
| 申请人 |
IDEMITSU PETROCHEMICAL CO., LTD. |
发明人 |
TSURUOKA, MASAYUKI;TANAKA, AKIRA;NAKAGAWA, MASARU |
| 分类号 |
C08F4/654;C08F10/06;C08F110/06;C08F210/06;C08L23/10;C08L23/14;C08L23/16;(IPC1-7):C08L23/12 |
主分类号 |
C08F4/654 |
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