Title:
METHOD FOR PRODUCING LAMINATE
Document Type and Number:
WIPO Patent Application WO/2018/180862
Kind Code:
A1
Abstract:
Provided is a method for producing a laminate that includes a polypropylene-based adhesive layer (I) and a base material layer (II), the method satisfying at least requirements (1) to (5) below and including a heat treatment step in which a heat treatment is carried out for 5-120 minutes at a temperature of 80-140ºC.
Requirement (1): The adhesive layer (I) contains 97-70 wt% of a propylene copolymer (A) and 3-30 wt% of a copolymer (B) having structural units derived from butene (here, the total quantity of copolymers (A) and (B) is 100 wt%).
Requirement (2): The copolymer (A) has a melting point (TmA) of 70-120ºC, as measured by differential scanning calorimetry (DSC), and has a content of structural units derived from butene of less than 1 mol%.
Requirement (3): The copolymer (B) has a melting point (TmB) of 130ºC or lower, as measured by differential scanning calorimetry (DSC), and has a content of structural units derived from butene of 1 mol% or more.
Requirement (4): The adhesive layer (I) contains a polymer (C) having structural units derived from at least one type of graft monomer selected from the group consisting of unsaturated carboxylic acids and derivatives thereof.
Requirement (5): The base material layer (II) contains a polyester-based resin.
Inventors:
MAEDA TAKAHIRO (JP)
OGAWA YOSHIYUKI (JP)
OGAWA YOSHIYUKI (JP)
Application Number:
PCT/JP2018/011344
Publication Date:
October 04, 2018
Filing Date:
March 22, 2018
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
B32B27/00; B32B27/32; B32B27/36; C09J123/14; C09J123/20; C09J123/26
Domestic Patent References:
| WO2008093805A1 | 2008-08-07 | |||
| WO2012115195A1 | 2012-08-30 | |||
| WO2018016460A1 | 2018-01-25 | |||
| WO2007086425A1 | 2007-08-02 |
Foreign References:
| JP2000143903A | 2000-05-26 | |||
| JP2002326660A | 2002-11-12 | |||
| US20110129666A1 | 2011-06-02 | |||
| US20120171405A1 | 2012-07-05 | |||
| JPH09111069A | 1997-04-28 | |||
| JPH04300933A | 1992-10-23 |
Other References:
See also references of EP 3603959A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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