&agr -OLEFIN POLYMER COMPOSITIONS, MOLDED OBJECTS MADE FROM THE COMPOSITIONS, AND NOVEL POLYMER

Title:

&agr -OLEFIN POLYMER COMPOSITIONS, MOLDED OBJECTS MADE FROM THE COMPOSITIONS, AND NOVEL POLYMER

Document Type and Number:

WIPO Patent Application WO/2005/103141

Kind Code:

A1

Abstract:

A composition excellent in transparency, flexibility, rubber elasticity, heat resistance, impact resistance, wearing resistance, etc.; a composition excellent in rigidity and impact resistance and having an excellent balance among blushing resistance, wearing resistance, and heat sealability; and a composition excellent in rubbery properties, heat resistance, wearing resistance, and flexibility. The compositions contain a specific propylene/&agr -olefin copolymer which, when analyzed by ¹³C-NMR spectroscopy, gives a signal chart in which when the position of the peak present on the highest-magnetic-field side among the signals attributable to the constituent unit CH (methine) derived from a C_4-22 &agr -olefin is taken as 34.4 ppm, then the intensity (A) of absorption at about 22.0-20.9 ppm, the intensity (B) of absorption at about 19.0-20.6 ppm, and the intensity (C) of absorption at about 19.0-22.0 ppm, which is attributable to propylene methyl, satisfy the following relationships (i) and (ii). (A/C)×100≤8 (i) (B/C)×100≥60 (ii) Also provided are: molded objects made from the compositions; and the &agr -olefin copolymer.

Inventors:

Mori, Ryoji c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Nakagawa, Takashi c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Ikenaga, Shigenobu c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Marubayashi, Hiromasa c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Okamoto, Masahiko c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Tohi, Yasushi c/o Mitsui, Chemicals (Inc. 580-32, Nagaur, Sodegaura-shi Chiba, 299-0265, JP)
Nagahashi, Kouji c/o Mitsui, Chemicals (Inc. 1-2, Waki 6-chome, Wakich, Kuga-gun Yamaguchi, 740-0061, JP)

Application Number:

PCT/JP2005/006938

Publication Date:

November 03, 2005

Filing Date:

April 08, 2005

Export Citation:

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Assignee:

MITSUI CHEMICALS, INC. (5-2 Higashi-Shimbashi 1-chome, Minato-ku Tokyo, 17, 10571, JP)
Mori, Ryoji c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Nakagawa, Takashi c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Ikenaga, Shigenobu c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Marubayashi, Hiromasa c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Okamoto, Masahiko c/o Mitsui, Chemicals (Inc. 580-32, Nagaura, Sodegaura-sh, Chiba 65, 29902, JP)
Tohi, Yasushi c/o Mitsui, Chemicals (Inc. 580-32, Nagaur, Sodegaura-shi Chiba, 299-0265, JP)
Nagahashi, Kouji c/o Mitsui, Chemicals (Inc. 1-2, Waki 6-chome, Wakich, Kuga-gun Yamaguchi, 740-0061, JP)

International Classes:

C08F4/64; C08F210/06; C08F210/16; C08L23/00; C08L23/12; C08L23/14; C08L23/16; C08L101/00; (IPC1-7): C08L23/16; C08F4/64; C08F210/16; C08L23/00; C08L23/12; C08L23/14; C08L101/00

Attorney, Agent or Firm:

Suzuki, Shunichiro (S.SUZUKI & ASSOCIATES, Gotanda Yamazaki Bldg. 6F 13-6, Nishigotanda 7-chom, Shinagawa-ku Tokyo, 141-0031, JP)

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