IP Library › Granted Patent US 10,590,317
Granted Patent B2
US 10,590,317 · App. 15/891,636 · Granted Mar 17, 2020

Adhesive resin laminate, laminate, and method of producing same

Inventors: Toshiyuki Takeda (Tokyo, JP); Nagako Takahashi (Tokyo, JP)
Assignee: FUJIMORI KOGYO CO., LTD.
C09J163/04B32B7/12B32B27/08C09J7/10C09J123/14C09J151/06C09J163/00C08L2312/04C09J2201/134C09J2201/36C09J2423/105C09J2451/00C09J2463/00C09J2463/005
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Quick Facts
Patent No.
US 10,590,317
App. No.
15/891,636
Granted
Mar 17, 2020
Kind
B2
Abstract

Provided are an adhesive resin laminate having an excellent adhesive force to two adherends, a laminate in which this adhesive resin laminate is laminated with two adherends, and a method of producing them. An adhesive resin laminate having at least a first adhesive layer and a second adhesive layer, in which the first adhesive layer includes a base resin and a crosslinking agent, the base resin is a modified polyolefin resin, the crosslinking agent is an epoxy-based compound, the second adhesive layer includes a polyolefin-based resin, and the first adhesive layer has a viscoelastic modulus measurement value E (150) at 150° C. of 1.0×10 4 Pa or more and 1.0×10 8 Pa or less.

Claims (18)

1. An adhesive resin laminate having at least a first adhesive layer and a second adhesive layer,

wherein

said first adhesive layer comprises a base resin and a crosslinking agent, said base resin is a modified polyolefin resin, and said crosslinking agent is an epoxy-based compound,

said second adhesive layer comprises a polyolefin-based resin, and

said first adhesive layer has a viscoelastic modulus measurement value E (150) at 150° C. of 1.0×10 4 Pa or more and 1.0×10 8 Pa or less.

2. The adhesive resin laminate according to claim 1 , wherein said epoxy-based compound contained in said first adhesive layer is a phenol novolak-type epoxy resin.

3. The adhesive resin laminate according to claim 1 , wherein said epoxy-based compound contained in said first adhesive layer comprises a bisphenol A skeleton.

4. The adhesive resin laminate according to claim 1 , wherein said second adhesive layer is a laminate of a plurality of polyolefin-based resin layers.

5. The adhesive resin laminate according to claim 1 , wherein said second adhesive layer comprises a layer including block polypropylene.

6. The adhesive resin laminate according to claim 1 , wherein said second adhesive layer has a film thickness five times or more of a film thickness of said first adhesive layer.

7. A laminate, comprising:

an adhesive resin laminate having at least a first adhesive layer and a second adhesive layer; and

first and second adherends,

the adhesive resin laminate and the first and second adherends being laminated in an order of the first adherend, said first adhesive layer of said adhesive resin laminate, said second adhesive layer of said adhesive resin laminate, and the second adherend, wherein

said first adhesive layer comprises a base resin and a crosslinking agent, said base resin is a modified polyolefin resin, and said crosslinking agent is an epoxy-based compound,

said second adhesive layer comprises a polyolefin-based resin, and

said first adhesive layer has a viscoelastic modulus measurement value E (150) at 150° C. of 1.0×10 4 Pa or more and 1.0×10 8 Pa or less.

8. The laminate according to claim 7 , wherein said first adherend is metal, and said second adherend is selected from any one of the group consisting of a polyolefin resin, a polyamide resin, and a polyester resin.

Assignments (3)
CHANGE OF NAME Recorded Jan 30, 2025
From: FUJIMORI KOGYO CO., LTD.
To: ZACROS CORPORATION
Reel/Frame 070060/0612 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE ASSIGNEE (BY ADDING A PERIOD AT THE END OF THEIR NAME) PREVIOUSLY RECORDED ON REEL 045289 FRAME 0317. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Dec 5, 2019
From: TAKEDA, TOSHIYUKI; TAKAHASHI, NAGAKO
To: FUJIMORI KOGYO CO., LTD.
Reel/Frame 051208/0776 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 8, 2018
From: TAKEDA, TOSHIYUKI; TAKAHASHI, NAGAKO
To: FUJIMORI KOGYO CO., LTD
Reel/Frame 045289/0317 →
Priority Claims (1)
JP 2017-026762 · Feb 16, 2017 · national
Continuity (1)
Related Publication 20180230345A1 · Aug 16, 2018