公开(公告)号：EP0646624A4

公开(公告)日：1996-03-20

申请号：EP94904013

申请日：1994-01-11

Applicant: MITSUI PETROCHEMICAL IND

Inventor： HASHIMOTO MIKIO ,  UEDA TAKASI ,  KAWASAKI MASAAKI ,  MORIYA SATORU ,  MIZUNO AKIRA ,  FUKUOKA DAISUKE ,  IMUTA JUNICHI ,  HIROSE KEIJI ,  SAITO JUNJI ,  KISO YOSHIHISA

IPC: C08F4/642 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L23/00 ,  C08L101/00

CPC classification number: C08L23/12 ,  C08L23/0815 ,  C08L23/10 ,  C08L23/142 ,  C08L23/16 ,  C08L2205/02 ,  C08L2314/06 ,  C08L2666/04

Abstract: A propylene polymer composition composed of a propylene polymer (A1) produced by using a metallocene catalyst and having a melt flow rate (MFR) of 0.01-30 g/10 min, a propylene polymer (A2) having an MFR of 30-1,000 g/10 min and, if necessary, a flexible polymer, wherein the ratio of the MFR of the polymer (A2) to that of the polymer (A1) is at least 30. A propylene polymer composition composed of a propylene polymer produced by using a titanium catalyst and having an MFR of 0.01-30 g/10 min, the above polymer (A2) and, if necessary, a flexible polymer. A propylene polymer composition composed of a propylene polymer produced by using a titanium catalyst and having an MFR of 0.01-50 g/10 min and an ethylene-olefin random copolymer produced by using a metallocene catalyst. A propylene polymer composition composed of a propylene polymer produced by using a catalyst containing a specified metallocene compound and at least one synthetic resin selected from among a propylene polymer other than the above propylene polymer, an olefin elastomer and an olefin polymer. All of the above polymer compositions are excellent in heat resistance, mechanical strengths and tensile elongation at break and are suitable for producing various structural materials of automobiles, household electric appliances, etc., daily necessities, films, sheets, and so forth.

公开(公告)号：CA2117699C

公开(公告)日：2001-05-29

申请号：CA2117699

申请日：1994-01-11

Applicant: MITSUI PETROCHEMICAL IND

Inventor： HASHIMOTO MIKIO ,  UEDA TAKASI ,  KAWASAKI MASAAKI ,  MORIYA SATORU ,  MIZUNO AKIRA ,  FUKUOKA DAISUKE ,  IMUTA JUNICHI ,  HIROSE KEIJI ,  SAITO JUNJI ,  KISO YOSHIHISA

IPC: C08F4/642 ,  C08L23/08 ,  C08L23/10 ,  C08L23/12 ,  C08L23/14 ,  C08L23/16 ,  C08L21/00 ,  C08L23/02

Abstract: A propylene polymer composition comprising a propylene polymer (A1) prepared by using a metallocene catalyst and having a melt flow rate (MFR) of 0.01 to 30 g/10 min and a propylene polymer (A2) prepared by using a metallocene catalyst and having a melt flow rate (MFR) of 30 to 1,000 g/10 min and, if desired, a soft polymer, a ratio [(A2)/(A1)] of the MFR of said propylene polymer (A2) to the MFR of said propylene polymer (A1) being not less than 30. A propylene polymer composition comprising a propylene polymer prepared by using a titanium catalyst and having MFR of 0.01 to 30 g/10 min and the above-mentioned propylene polymer (A2) and, if desired, a soft polymer. A propylene polymer composition comprising a propylene polymer prepared by using a titanium catalyst and having MFR of 0.01 to 50 g/10 min and an ethylene/olefin random copolymer prepared by using a metallocene catalyst. A propylene polymer composition comprising a propylene polymer prepared by using a catalyst containing a specific metallocene compound and at least one synthetic resin selected from a propylene polymer different from the above propylene polymer, an olefin elastomer and an olefin polymer. These propylene polymer compositions are excellent in heat resistance, mechanical strength, tensile elongation at break, etc., and hence they can be favorably used for 291 various structural materials such as those of automobiles and electrical appliances, daily necessaries, various films and sheets.