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US-12617969-B2 - Layered product

US12617969B2US 12617969 B2US12617969 B2US 12617969B2US-12617969-B2

Abstract

A laminated product in which a first base material layer, an adhesive layer and a second base material layer are stacked in this order, wherein an edge of the laminated product is covered with a layer formed by a curable composition including at least one perfluoropolyether group-containing compound.

Inventors

  • Yoshiaki Honda
  • Teruyuki Fukuda
  • Akiko Ohya

Assignees

  • DAIKIN INDUSTRIES, LTD.
  • DAIKIN AMERICA, INC.

Dates

Publication Date
20260505
Application Date
20181030
Priority Date
20171031

Claims (10)

  1. 1 . A laminated product in which a first base material layer, an adhesive layer and a second base material layer are stacked in this order, wherein the adhesive layer on an edge face of the laminated product is directly covered with a layer formed by a curable composition comprising a perfluoropolyether group-containing compound, at least a part of a main surface of the laminated product is not covered with a layer formed by the curable composition comprising a perfluoropolyether group-containing compound, the layer formed by a curable composition comprising a perfluoropolyether group-containing compound has a thickness of 10 μm or more and 1.0 mm or less, and the thickness of the first base material layer and the second base material layer are each independently 0.01 mm or more and 10.0 mm or less.
  2. 2 . The laminated product according to claim 1 , wherein the perfluoropolyether group-containing compound is at least one perfluoropolyether group-containing silane compound represented by formula (A), (B), (C) or (D): wherein: PFPE, at each occurrence, is each independently a group represented by formula: —(OC 6 F 12 ) a —(OC 5 F 10 ) b —(OC 4 F 8 ) c —(OC 3 X 10 6 ) d —(OC 2 F 4 ) e —(OCF 2 ) f — wherein a, b, c, d, e and f are each independently an integer of 0 or more and 200 or less, the sum of a, b, c, d, e and f is at least 1, the occurrence order of the respective repeating units in parentheses with a, b, c, d, e or f is not limited in the formula, and X 10 , at each occurrence, is each independently a hydrogen atom, a fluorine atom or a chlorine atom; R 13 , at each occurrence, each independently represents a hydroxyl group or a hydrolyzable group; R 14 , at each occurrence, each independently represents a hydrogen atom or an alkyl group having 1 to 22 carbon atoms; R 11 , at each occurrence, each independently represents a hydrogen atom or a halogen atom; R 12 , at each occurrence, each independently represents a hydrogen atom or a lower alkyl group; R 11 ″, R 12 ″, R 13 ″ and R 14 ″ are as defined for R 11 , R 12 , R 13 and R 14 , respectively; n1 with respect to each (—SiR 13 n1 R 14 3-n1 ) unit or each (—SiR 13″ n1 R 14″ 3-n1 ) unit is independently an integer of 0 to 3; provided that at least two groups, at each occurrence, each independently selected from the group consisting of R 13 and R 13 ″ are present in formulae (A) and (B); X 1 , at each occurrence, each independently represents a single bond or a 2-10 valent organic group; X 2 , at each occurrence, each independently represents a single bond or a divalent organic group; t, at each occurrence, is each independently an integer of 1 to 10; α1, at each occurrence, is each independently an integer of 1 to 9; X 3 , at each occurrence, each independently represents a single bond or a 2-10 valent organic group; β1, at each occurrence, is each independently an integer of 1 to 9; X 5 , at each occurrence, each independently represents a single bond or a 2-10 valent organic group; γ1, at each occurrence, is each independently an integer of 1 to 9; R a , at each occurrence, each independently represents —Z 3 —SiR 71 p1 R 72 q1 R 73 r1 ; Z 3 , at each occurrence, each independently represents an oxygen atom or a divalent organic group; R 71 , at each occurrence, each independently represents R a′ ; R a′ is as defined for R a ; the number of Si linearly linked via a Z 3 group in R a is at most 5; R 72 , at each occurrence, each independently represents a hydroxyl group or a hydrolyzable group; R 73 , at each occurrence, each independently represents a hydrogen atom or a lower alkyl group; p1, at each occurrence, is each independently an integer of 0 to 3; q1, at each occurrence, is each independently an integer of 0 to 3; r1, at each occurrence, is each independently an integer of 0 to 3; R a″ , at each occurrence, each independently represents —Z 3 —SiR 71 p1 R 72 ″ q1 R 73 r1 ; R 72″ is as defined for R 72 ; provided that the sum of p1, q1 and r1 with respect to each (—Z 3 —SiR 71 p1 R 72 q1 R 73 r1 ) or with respect to each (—Z 3 —SiR 71 p1 R 72 ″ q1 R 73 r1 ) is 3 and at least one q1 in formula (C) is an integer of 1 to 3; R b , at each occurrence, each independently represents a hydroxyl group or a hydrolyzable group; R c , at each occurrence, each independently represents a hydrogen atom or a lower alkyl group; R b″ and R c″ are as defined for R b and R c , respectively; k1, at each occurrence, is each independently an integer of 0 to 3; l1, at each occurrence, is each independently an integer of 0 to 3; m1, at each occurrence, is each independently an integer of 0 to 3; provided that the sum of k1, l1 and m1 with respect to each (SiR a k1 R b l1 R c m1 ) or with respect to each (SiR a″ k1 R b″ l1 R c″ m1 ) is 3; at least two groups selected from the group consisting of R b , R b″ , R 72 and R 72″ are present in formula (C); X 7 each independently represents a single bond or a 2-10 valent organic group; δ1 is each independently an integer of 1 to 9; R d , at each occurrence, each independently represents —Z 4 —CR 81 p2 R 82 q2 R 83 r2 ; Z 4 , at each occurrence, each independently represents an oxygen atom or a divalent organic group; R 81 , at each occurrence, each independently represents R d′ ; R d′ is as defined for R d ; the number of C linearly bonded via a Z 4 group in R d is at most 5; R 82 , at each occurrence, each independently represents —Y—SiR 85 n2 R 86 3-n2 ; Y, at each occurrence, each independently represents a divalent organic group; R 85 , at each occurrence, each independently represents a hydroxyl group or a hydrolyzable group; R 86 , at each occurrence, each independently represents a hydrogen atom or a lower alkyl group; R 83 , at each occurrence, each independently represents a hydrogen atom, a hydroxyl group or a lower alkyl group; p2, at each occurrence, is each independently an integer of 0 to 3; q2, at each occurrence, is each independently an integer of 0 to 3; r2, at each occurrence, is each independently an integer of 0 to 3; R d″ , at each occurrence, each independently represents —Z 4 —CR 81 p2 R 82″ q2 R 83 r2 ; R 82″ represents —Y—SiR 85″ n2 R 86″ 3-n2 ; provided that the sum of p2, q2 and r2 with respect to each (—Z 4 —CR 81 p2 R 82 q2 R 83 r2 ) or with respect to each (—Z 4 —CR 81 P2 R 82″ q2 R 83 r2 ) is 3; n2 with respect to each (—Y—SiR 85 n2 R 86 3-n2 ) unit or with respect to each (—Y—SiR 85″ n2 R 86″ 3-n2 ) unit independently represents an integer of 0 to 3; R 85″ and R 86″ are as defined for R 85 and R 86 , respectively; R e , at each occurrence, each independently represents —Y—SiR 85 n2 R 86 3-n2 ; R e″ , at each occurrence, each independently represents —Y—SiR 85″ , R 86″ 3-n2 ; R f , at each occurrence, each independently represents a hydrogen atom, a hydroxyl group or a lower alkyl group; R f″ is as defined for R f ; k2, at each occurrence, is each independently an integer of 0 to 3; l2, at each occurrence, is each independently an integer of 0 to 3; and m2, at each occurrence, is each independently an integer of 0 to 3; provided that the sum of k2, l2 and m2 with respect to each (CR d k2 R e l2 R f m2 ) or with respect to each (CR d″ k2 R e″ l2 R f″ m2 ) is 3, and two or more groups selected from the group consisting of a group represented by —Y—SiR 85 n2 R 86 3-n2 wherein n2 is 1 or more and a group represented by —Y—SiR 85″ n2 R 86″ 3-n2 wherein n2 is 1 or more are present in formula (D).
  3. 3 . The laminated product according to claim 1 , wherein the perfluoropolyether group-containing compound is a compound represented by the following formula: CH 2 ═CH—R k1 -PFPE-R k1 —CH—CH 2 (I) wherein: PFPE, at each occurrence, is each independently a group represented by formula: —(OC 6 F 12 ) a —(OC 5 F 10 ) b —(OC 4 F 8 ) c —(OC 3 X 10 6 ) d —(OC 2 F 4 ) e —(OCF 2 ) f — wherein a, b, c, d, e and f are each independently an integer of 0 or more and 200 or less, the sum of a, b, c, d, e and f is at least 1, the occurrence order of the respective repeating units in parentheses with a, b, c, d, e or f is not limited in the formula, and X 10 , at each occurrence, each independently represents a hydrogen atom, a fluorine atom or a chlorine atom; and R k1 , at each occurrence, is each independently a single bond or a divalent organic group.
  4. 4 . The laminated product according to claim 1 , wherein the adhesive is an adhesive comprising a resin selected from an epoxy resin, an acrylic resin, a silicone resin, a phenol resin, a polyimide resin, an imide resin, a polyvinyl chloride resin, a polyvinyl butyral resin and an ethylene vinyl acetate resin.
  5. 5 . The laminated product according to claim 1 , wherein the first base material layer and the second base material layer are each independently a base material layer formed from a material selected from the group consisting of a resin, a metal, a metal oxide, a ceramic and glass.
  6. 6 . The laminated product according to claim 1 , wherein the thickness of the first base material layer and the second base material layer are each independently 0.5 mm or more and 10.0 mm or less.
  7. 7 . The laminated product according to claim 1 , wherein a thickness of the adhesive layer is 0.01 mm or more and 1.0 mm or less.
  8. 8 . The laminated product according to claim 1 , wherein the laminated product has a first main surface and a second main surface opposite to each other, a surface of the first base material layer is the first main surface of the laminated product, a surface of the second base material layer is the second main surface of the laminated product, at least a part of the first main surface of the laminated product and at least a part of the second main surface of the laminated product are not covered with a layer formed by the curable composition comprising a perfluoropolyether group-containing compound.
  9. 9 . An article comprising the laminated product according to claim 1 .
  10. 10 . A laminated product which has a first main surface and a second main surface opposite to each other, wherein a first base material layer, an adhesive layer and a second base material layer are stacked in this order, the adhesive layer on an edge face of the laminated product is directly covered with a layer formed by a curable composition comprising a perfluoropolyether group-containing compound, a surface of the first base material layer is the first main surface of the laminated product, a surface of the second base material layer is the second main surface of the laminated product, at least a part of the first main surface of the laminated product and at least a part of the second main surface of the laminated product are not covered with a layer formed by the curable composition comprising a perfluoropolyether group-containing compound, and the layer formed by a curable composition comprising a perfluoropolyether group-containing compound has a thickness of 10 μm or more and 1.0 mm or less.

Description

CROSS REFERENCE TO RELATED APPLICATIONS This application is a National Stage of International Application No. PCT/JP2018/040328 filed Oct. 30, 2018, claiming priority based on Japanese Patent Application No. 2017-211200 filed Oct. 31, 2017. TECHNICAL FIELD The present invention relates to a laminated product and an article comprising the laminated product. BACKGROUND ART Display assemblies, touch panel assemblies, solar cell assemblies, and the like include laminated products where various base material layers are pasted, as constituent materials. Such a laminated product includes base material layers such as a liquid crystal panel, a touch panel, electrode glass and cover glass pasted by an adhesive. CITATION LIST Patent Literature Patent Literature 1: JP 2017-105069 A SUMMARY OF INVENTION Technical Problem The present inventors have found that an article including such a laminated product, when used for a long period, may cause an adhesion layer to be swollen in some cases. The reason for this has been considered by the present inventors that such swelling is caused by the presence of an exposed portion where the adhesive layer is exposed on the edge face of the laminated product including the base material layers pasted by an adhesive. If such an exposed portion is present, a problem which can occur is that the adhesive layer is swollen when a chemical substance or the like is externally attached to the edge face of the laminated product. Accordingly, an object of the present invention is to provide a laminated product having excellent resistance to chemical substance. Solution to Problem The present inventors have made intensive studies in order to solve the above problems, and as a result, have found that resistance to chemical substance is enhanced by protecting, by a perfluoropolyether group-containing compound, the edge face of a laminated product in which base material layers are pasted by an adhesive, thereby leading to completion of the present invention. A first aspect of the present invention provides a laminated product in which a first base material layer, an adhesive layer and a second base material layer are stacked in this order, whereinan edge face of the laminated product is covered with a layer formed by a curable composition including a perfluoropolyether group-containing compound. A second aspect of the present invention provides an article comprising the laminated product of the present invention. Effects of Invention The present invention can provide a laminated product having high resistance to chemical substance by protecting the edge face of a laminated product in which a first base material layer, an adhesive layer and a second base material layer are stacked, by a curable composition including a perfluoropolyether group-containing compound. DESCRIPTION OF EMBODIMENTS The laminated product of the present invention comprises a first base material layer, an adhesive layer and a second base material layer. The first base material layer, the adhesive layer and the second base material layer are stacked in this order. That is, the first base material layer and the second base material layer are pasted by the adhesive layer, thereby forming the laminated product. The materials forming the first base material layer and the second base material layer are not limited, and, for example, are selected from the group consisting of a resin, a metal, a metal oxide, a ceramic and glass. The resin is not limited, and examples thereof include an acrylic resin, a polycarbonate-based resin, an ABS resin, a polyester-based resin, a polyimide-based resin, a polyamide-based resin and a polyolefin-based resin. The metal is not limited, and examples thereof include aluminum, copper, iron, stainless steel and an alloy thereof. The metal oxide is not limited, and examples thereof include ITO (indium tin oxide) and anodized aluminum. The ceramic is not limited, and examples thereof include aluminum oxide, silicon oxide and zirconium. The glass is not limited, and is preferably soda-lime glass, alkali aluminosilicate glass, borosilicate glass, alkali-free glass, crystal glass or quartz glass, and examples include chemically strengthened soda-lime glass, chemically strengthened alkali aluminosilicate glass and chemically bonded borosilicate glass. The materials forming the first base material layer and the second base material layer may be the same as or different from each other. The shapes of the first base material layer and the second base material layer are not limited, and may be each, for example, a film shape or a plate shape. The thicknesses of the first base material layer and the second base material layer are not limited, and may be each, for example, 0.01 mm or more and 10.0 mm or less, 0.1 mm or more and 5 mm or less, or 0.5 mm or more and 2 mm or less. The first base material layer and the second base material layer may be each one member. Examples of such a member include a touch panel, cover