Title:
MULTILAYER FILM
Document Type and Number:
WIPO Patent Application WO/2016/121868
Kind Code:
A1
Abstract:
Provided are a multilayer film, a method for producing the multilayer film, and a method for producing a molded body using the multilayer film. The multilayer film: has an adhesive layer; has excellent three-dimensional covering formability and adhesiveness after being formed into a three-dimensional cover; can easily be used when being bonded to an adherend; maintains adhesive strength without breaking or wrinkling in a wide range of range temperatures; and is suitable for forming a vacuum. Specifically, the multilayer film has: an adhesive layer comprising a thermoplastic polymer composition containing a thermoplastic elastomer (A) which is a block copolymer or a hydrogenated product thereof having a polymer block (a1) containing aromatic vinyl compound units and having a polymer block (a2) containing conjugated diene compound units; and a base layer comprising an amorphous resin which has a modulus of elasticity of 2 to 600 MPa at an arbitrary temperature of 110 to 160°C. The tensile elongation at break of the multilayer film at a temperature 5°C lower than the glass transition temperature of the amorphous resin is at least 160%.
Inventors:
KAWAKITA HIROSHI (JP)
NAKANO KIRIHIRO (JP)
TAKEDA HIDEAKI (JP)
NAKANO KIRIHIRO (JP)
TAKEDA HIDEAKI (JP)
Application Number:
PCT/JP2016/052489
Publication Date:
August 04, 2016
Filing Date:
January 28, 2016
Export Citation:
Assignee:
KURARAY CO (JP)
International Classes:
B29C48/21; B32B27/00; B29C51/10; C09J7/02; C09J123/10; C09J129/14; C09J153/02; B29K33/00
Domestic Patent References:
| WO2013105392A1 | 2013-07-18 | |||
| WO2014167868A1 | 2014-10-16 | |||
| WO2005095081A1 | 2005-10-13 |
Foreign References:
| JP2005111765A | 2005-04-28 | |||
| JP2000185333A | 2000-07-04 | |||
| JP2009113385A | 2009-05-28 | |||
| JP2012077177A | 2012-04-19 | |||
| JP2012139826A | 2012-07-26 |
Other References:
See also references of EP 3251840A4
Download PDF: