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1. (WO2018180862) METHOD FOR PRODUCING LAMINATE

Pub. No.:    WO/2018/180862    International Application No.:    PCT/JP2018/011344
Publication Date: Fri Oct 05 01:59:59 CEST 2018 International Filing Date: Fri Mar 23 00:59:59 CET 2018
IPC: B32B 27/00
B32B 27/32
B32B 27/36
C09J 123/14
C09J 123/20
C09J 123/26
Applicants: MITSUI CHEMICALS, INC.
三井化学株式会社
Inventors: MAEDA Takahiro
前田 峻宏
OGAWA Yoshiyuki
小川 慶之
Title: METHOD FOR PRODUCING LAMINATE
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.