Title:
MATERIAL FOR TUBULAR MOLDING AND HEAT-SHRINK FILM USING THE SAME
Document Type and Number:
Japanese Patent JP2016216541
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a material for tubular molding excellent in moldability upon drawing, and further, to provide a heat-shrink film produced using the molding material and excellent in heat shrinkability.SOLUTION: Provided is a material for molding a tubular molding comprising a block copolymer made of a vinyl aromatic hydrocarbon and conjugated diene, in which the block copolymer is made of a block part shown by (A)-B-(A), the total number average molecular weight of the total of the (A)and the number average molecular weight of the total of the (A)are respectively 50,000 or more, the glass transition temperature of the block copolymer is 55 to 70°C, and the number average moleculare weight is 20,000 to 350,000, thus a heat-shrink film excellent in moldability and heat shrinkability upon drawing can be obtained.SELECTED DRAWING: None
Inventors:
UMEYAMA MASAYA
SUZUKI SHIGERU
WATANABE JUN
SUZUKI SHIGERU
WATANABE JUN
Application Number:
JP2015099941A
Publication Date:
December 22, 2016
Filing Date:
May 15, 2015
Export Citation:
Assignee:
DENKA CO LTD
International Classes:
C08F297/04; B29C48/32; B29C61/08; C08J5/18
Domestic Patent References:
| JP2016524027A | 2016-08-12 | |||
| JP2011525561A | 2011-09-22 | |||
| JP2001151982A | 2001-06-05 | |||
| JPS60224520A | 1985-11-08 | |||
| JPH0249014A | 1990-02-19 | |||
| JPH02227412A | 1990-09-10 |
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