Title:
PROPYLENE POLYMER AND ITS MOLDED ARTICLE, AND PRODUCTION OF PROPYLENE POLYMER
Document Type and Number:
Japanese Patent JP2001064322
Kind Code:
A
Abstract:
To obtain a propylene polymer that is excellent in low-temperature heat sealability and excellent in transparency and scratch resistance, or the like, and that is suitably used in the field of a packaging film.
A propylene polymer has the properties as given below: (1) melting point Tm as measured by a differential scanning calorimeter is 110°C≤Tm≤ 140°C; (2) heat of fusion ΔH (j/g) as measured by the differential scanning calorimeter and the melting point Tm satisfy the relationship: δH≥0.45μTm+22; (3) a half width Th (°C) of a peak top of an elution curve as measured by temperature rising elution fractionation satisfies the relationship: Th≤5; and (4) an intrinsic viscosity [η] (dl/g) as measured in tetralin solvent at 135°C is 0.5-5.
Inventors:
KANAMARU MASAMI
MINAMI YUTAKA
KAKIUE KOJI
FUNABASHI HIDEO
MINAMI YUTAKA
KAKIUE KOJI
FUNABASHI HIDEO
Application Number:
JP2000119890A
Publication Date:
March 13, 2001
Filing Date:
April 20, 2000
Export Citation:
Assignee:
IDEMITSU PETROCHEMICAL CO
International Classes:
C08F4/64; C08F4/645; C08F2/34; C08F4/6592; C08F10/06; C08F4/659; C08F110/06; C08F210/06; (IPC1-7): C08F10/06; C08F2/34; C08F4/645
Domestic Patent References:
| JPH11130807A | 1999-05-18 | |||
| JPH06329726A | 1994-11-29 | |||
| JPH08231640A | 1996-09-10 |
Foreign References:
| WO1999067303A1 | 1999-12-29 | |||
| US5708101A | 1998-01-13 | |||
| WO1995009172A1 | 1995-04-06 | |||
| WO1996030380A1 | 1996-10-03 |
Attorney, Agent or Firm:
Tohei Masamichi
Previous Patent: STORAGE CONTAINER FOR CURABLE RESIN
Next Patent: POLYVINYL ACETAL RESIN AND COATING MATERIAL COMPOSITION CONTAINING THE SAME
Next Patent: POLYVINYL ACETAL RESIN AND COATING MATERIAL COMPOSITION CONTAINING THE SAME