JP2020185719A - 積層体およびその製造方法 - Google Patents
積層体およびその製造方法 Download PDFInfo
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- JP2020185719A JP2020185719A JP2019091676A JP2019091676A JP2020185719A JP 2020185719 A JP2020185719 A JP 2020185719A JP 2019091676 A JP2019091676 A JP 2019091676A JP 2019091676 A JP2019091676 A JP 2019091676A JP 2020185719 A JP2020185719 A JP 2020185719A
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- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
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- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/12—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by using adhesives
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
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- C09J201/00—Adhesives based on unspecified macromolecular compounds
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- C09J7/00—Adhesives in the form of films or foils
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
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Abstract
Description
[式(X)において、Tgはポリマー(A)のガラス転移温度(単位:K)を表し、Tgi(i=1、2、・・・n)は、モノマーiがホモポリマーを形成した際のガラス転移温度(単位:K)を表し、Wi(i=1、2、・・・n)は、モノマーiの全モノマー成分中の質量分率を表す]
第1粘着性組成物中のアクリルポリマーは、(メタ)アクリル酸アルキルエステルを主成分として含むモノマー成分(第1モノマー成分)の重合により得られる。「(メタ)アクリル酸」とは、アクリル酸および/またはメタクリル酸をいうものとする。
10 被着体(フレキシブル被着体)
20 フィルム(補強フィルム)
20A フィルム部分(第1フィルム部分)
20B フィルム部分(第2フィルム部分)
21 基材
21a 端面(第1傾斜端面)
21b 端面(第2傾斜端面)
22 粘着剤層
22a,22b 変性部
S1 第1領域部
S2 第2領域部
G カット溝
Claims (5)
- フレキシブル被着体と、
基材と前記基材上の粘着剤層とを含み且つ前記粘着剤層側にて前記フレキシブル被着体に貼着している補強フィルムと、を備える積層体であって、
前記補強フィルムは、前記フレキシブル被着体上において離隔して隣り合う第1補強フィルム部分および第2補強フィルム部分を含み、
前記第1補強フィルム部分の前記基材は、前記第2補強フィルム部分に対向する第1傾斜端面を有し、当該第1傾斜端面は、前記フレキシブル被着体から離れる箇所ほど第1補強フィルム部分内方側に退避するように傾斜し、
前記第2補強フィルム部分の前記基材は、前記第1補強フィルム部分に対向する第2傾斜端面を有し、当該第2傾斜端面は、前記フレキシブル被着体から離れる箇所ほど第2補強フィルム部分内方側に退避するように傾斜している、ことを特徴とする積層体。 - 前記第1補強フィルム部分の前記粘着剤層は前記第2補強フィルム部分側縁端に変性部を有し、前記第2補強フィルム部分の前記粘着剤層は前記第1補強フィルム部分側縁端に変性部を有する、請求項1に記載の積層体。
- 基材と前記基材上の粘着剤層とを含む補強フィルムを前記粘着剤層側にてフレキシブル被着体に貼り付ける工程と、
前記フレキシブル被着体上の前記補強フィルムに対してカット溝を形成する加工を施して、当該補強フィルムにおいて、離隔する二つの第1領域部と前記第1領域部間の第2領域部とを区画形成するカット工程であって、各第1領域部と前記第2領域部とを区分するカット溝は、前記フレキシブル被着体から離れるほど幅広である、カット工程と、
前記第2領域部を前記フレキシブル被着体から剥離する工程と、
前記第1領域部における粘着剤層の粘着力を上昇させる粘着力上昇工程と、を含むことを特徴とする積層体の製造方法。 - 前記カット工程では、各第1領域部の粘着剤層において、前記第2領域部との間の前記カット溝に臨む変性部を形成する、請求項3に記載の積層体の製造方法。
- 前記カット工程において、各第1領域部と前記第2領域部とを区分する前記カット溝は、前記補強フィルムに対してその基材側から粘着剤層の途中までのハーフカットによって形成される、請求項3または4に記載の積層体の製造方法。
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