发明公开
EP0420160A2 Polyolefin compositions of high impact strength
失效
Hochschlagfeste Polyolefinzusammensetzungen。
- 专利标题： Polyolefin compositions of high impact strength
- 专利标题（中）： Hochschlagfeste Polyolefinzusammensetzungen。
-
申请号： EP90118412.7申请日： 1990-09-25
-
公开(公告)号： EP0420160A2公开(公告)日： 1991-04-03
- 发明人: Milani, Federico, Dr. , Massari, Paola , Lori, Domenico
- 申请人： SPHERILENE S.r.l.
- 申请人地址： 31, Foro Buonaparte I-20121 Milano IT
- 专利权人： SPHERILENE S.r.l.
- 当前专利权人： SPHERILENE S.r.l.
- 当前专利权人地址： 31, Foro Buonaparte I-20121 Milano IT
- 代理机构： Barz, Peter, Dr.
- 优先权： IT2183189 19890926
- 主分类号： C08L23/10
- IPC分类号： C08L23/10 ; C08L23/16
摘要：
Described are polyolefinic compositions endowed with a high impact strength, comprising:
a) 35-45% by weight of an ethylene-propylene copolymer containing from 4 to 10% by weight of ethylene and exhibiting a melt flow rate of 10 to 20 g/10 minutes at 230°C and 2.16 kg;
b) 35-45% by weight of an ethylene-propylene copolymer containing from 4 to 10% by weight of ethylene and exhibiting a M.F.R. of 35 to 45 g/10 minutes at 230°C and 2.16 kg;
c) 10-30% by weight of an ethylene/propylene/ (diene) elastomer containing from 40 to 55% by weight of propylene and from 0 to 5% by weight of a diene monomer, which is amorphous under X-ray diffraction and is characterized by:
- (α₂ + α₄) higher than 16%
- (R₁ x R₂) lower than 0.5
- M w /M n lower than 3
- Mooney viscosity (ML 1 + 4, 100°C) from 30 to 38
- /η/ from 1.5 to 2 dl/g, measured in tetrahydronaphthalene at 135°C.
a) 35-45% by weight of an ethylene-propylene copolymer containing from 4 to 10% by weight of ethylene and exhibiting a melt flow rate of 10 to 20 g/10 minutes at 230°C and 2.16 kg;
b) 35-45% by weight of an ethylene-propylene copolymer containing from 4 to 10% by weight of ethylene and exhibiting a M.F.R. of 35 to 45 g/10 minutes at 230°C and 2.16 kg;
c) 10-30% by weight of an ethylene/propylene/ (diene) elastomer containing from 40 to 55% by weight of propylene and from 0 to 5% by weight of a diene monomer, which is amorphous under X-ray diffraction and is characterized by:
- (α₂ + α₄) higher than 16%
- (R₁ x R₂) lower than 0.5
- M w /M n lower than 3
- Mooney viscosity (ML 1 + 4, 100°C) from 30 to 38
- /η/ from 1.5 to 2 dl/g, measured in tetrahydronaphthalene at 135°C.
公开/授权文献
- EP0420160B1 Polyolefin compositions of high impact strength 公开/授权日：1995-02-01
信息查询
