Laminate and application for same

Patent metadata

Field	Value
Publication number	US-2019047264-A1
Application number	US-201716078612-A
Country	US
Kind code	A1
Filing date	Mar 1, 2017
Priority date	Mar 4, 2016
Publication date	Feb 14, 2019
Grant date	—

Abstract

The layered product includes at least one type of layer selected from the layers (1) and (2), and at least one type of layer selected from the layers (3) and (4), in which at least one layer of the at least one type of layer selected from the layers (1) and (2) is directly in contact with or adjacent via an adhesive layer to at least one layer of the at least one type of layer selected from the layers (3) and (4): layer (1): a layer prepared using an ethylene/α-olefin/non-conjugated polyene copolymer; layer (2): a layer prepared using an ethylene/carboxylic acid copolymer; layer (3): a layer prepared using an acrylic-type rubber; and layer (4): a layer prepared using a halogen-containing polymer.

First claim

1 . A layered product comprising at least one type of layer selected from the following layers (1) and (2) and at least one type of layer selected from the following layers (3) and (4),
wherein at least one layer of the at least one type of layer selected from the layers (1) and (2) is directly in contact with or adjacent via an adhesive layer to at least one layer of the at least one type of layer selected from the layers (3) and (4): layer (1): a layer prepared using an ethylene/α-olefin/non-conjugated polyene copolymer; layer (2): a layer prepared using an ethylene/carboxylic acid copolymer; layer (3): a layer prepared using an acrylic-type rubber; and layer (4): a layer prepared using a halogen-containing polymer.

2 . The layered product according to claim 1 , wherein the at least one type of layer selected from the layers (1) and (2) contains 0.2 parts by mass or more of an onium salt with respect to 100 parts by mass of the copolymer, and further contains 7 parts by mass or more of an inorganic compound containing oxygen and at least one element selected from Group 2 elements and Group 13 elements with respect to 100 parts by mass of the copolymer.

3 . The layered product according to claim 1 , wherein the at least one type of layer selected from the layer (1) and the layer (2) contains from 0.2 parts by mass to 10 parts by mass of an onium salt with respect to 100 parts by mass of the copolymer, and further contains from 7 parts by mass to 100 parts by mass of an inorganic compound containing oxygen and at least one element selected from Group 2 elements and Group 13 elements with respect to 100 parts by mass of the copolymer.

4 . The layered product according to claim 1 , wherein the layer (1) and the layer (4) are directly in contact with each other.

5 . The layered product according to claim 1 , wherein the at least one type of layer selected from the layers (1) and (2) is bonded to the layer (3) via the adhesive layer.

6 . The layered product according to claim 1 , wherein the ethylene/α-olefin/non-conjugated polyene copolymer satisfies the following requirements (I) to (III):
requirement (I): a molar ratio of a structural unit derived from ethylene and a structural unit derived from α-olefin (ethylene/α-olefin) is from 40/60 to 99.9/0.1;
requirement (II): a structural unit derived from non-conjugated polyene accounts for 0.07% to 10% by mass with respect to 100% by mass of the ethylene/α-olefin/non-conjugated polyene copolymer; and
requirement (III): an intrinsic viscosity [η] measured in decalin at 135° C. is from 1.0 to 4.0 dl/g.

7 . The layered product according to claim 1 , wherein the ethylene/α-olefin/non-conjugated polyene copolymer has a structural unit derived from 5-vinyl-2-norbornene (VNB).

8 . The layered product according to claim 1 , wherein the ethylene/α-olefin/non-conjugated polyene copolymer satisfies the following requirement (IV):
requirement (IV): a B value represented by the following formula (i) is 1.20 or more;
B value=([ EX ]+2[ Y ])/[2×[ E ]×([ X ]+[ Y ])]  (i)

[where [E], [X], and [Y] represent molar fractions of ethylene, an α-olefin, and a non-conjugated polyene, respectively, and [EX] represents an ethylene-α-olefin diad chain fraction].

9 . A hose comprising the layered product according to claim 1 as at least a part thereof.

10 . The hose according to claim 9 , which is used in any one of applications for an automobile, a motorbike, industrial machinery, construction machinery, and agricultural machinery.

11 . The hose according to claim 9 , which is used for a turbocharger hose for an automobile.

Assignees

• Mitsui Chemicals Inc

Inventors

• Kikuchi Yoshiharu
• Ichino Kotaro

Classifications

• F02M35/10321

  Plastics; Composites; Rubbers · CPC title

• F02M35/10137

  Flexible ducts, e.g. bellows or hoses · CPC title

• F02M35/10157

  Supercharged engines · CPC title

• B32B1/08

  Tubular products · CPC title

• B32B27/26

  using curing agents · CPC title