Title:
LOWLY CRYSTALLINE POLYPROPYLENE SHEET
Document Type and Number:
WIPO Patent Application WO/2002/083768
Kind Code:
A1
Abstract:
A lowly crystalline polypropylene sheet which has an average spherulite radius of 0.1 to 4 $g(m)m, an average spherulite number of up to 600 per mm?2¿ in a cross section of the sheet, and a solid density of 0.895 g/cm?3¿ or lower, gives a differential scanning calorimetry (DSC) curve in which the enthalpy of melting ($g(D)H) for the maximum endothermic peak is less than 90 J/g, has a gloss of 90% or higher on at least one side, has an exothermic peak of 1 J/g or higher on the lower-temperature side of the maximum endothermic peak, and has a thickness of 50 $g(m)m or larger.
Inventors:
FUNAKI AKIRA (JP)
KUBO MASAHIRO (JP)
KUBO MASAHIRO (JP)
Application Number:
PCT/JP2001/002974
Publication Date:
October 24, 2002
Filing Date:
April 06, 2001
Export Citation:
Assignee:
IDEMITSU PETROCHEMICAL CO (JP)
FUNAKI AKIRA (JP)
KUBO MASAHIRO (JP)
FUNAKI AKIRA (JP)
KUBO MASAHIRO (JP)
International Classes:
C08J5/18; B29C48/08; C08L23/10; C08L55/00; B29C51/00; (IPC1-7): C08J5/18; B29C47/88; B29B11/06; B29C51/02; B29K23/00; B29L7/00
Foreign References:
| JP2001030362A | 2001-02-06 | |||
| JP2000246785A | 2000-09-12 | |||
| EP0803340A2 | 1997-10-29 | |||
| EP0614748A1 | 1994-09-14 | |||
| JPS61130018A | 1986-06-17 | |||
| JPH101548A | 1998-01-06 | |||
| JPS6360726A | 1988-03-16 |
Other References:
See also references of EP 1380614A4
Attorney, Agent or Firm:
Kinoshita, Jitsuzo (Ogikubo TM building 26-13 Ogikubo 5-chome Suginami-ku, Tokyo, JP)
Download PDF:
Previous Patent: SHAPE MEMORY POLYMER STRUCTURE HAVING LATTIC FRAME
Next Patent: HYBRID NANOSTRUCTURED MATERIALS BASED ON II-VI SEMICONDUCTORS
Next Patent: HYBRID NANOSTRUCTURED MATERIALS BASED ON II-VI SEMICONDUCTORS