US 9,254,627 B2Granted

Manufacturing method for transparent substrate

AssigneeNitto Denko Corporation

InventorsDaisuke Hattori, Takeshi Murashige, Tadayuki Kameyama

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Abstract

There is provided a manufacturing method for a transparent substrate excellent in bending property, flexibility, impact resistance, and external appearance. A manufacturing method for a transparent substrate according to an embodiment of the present invention includes: a step A of applying a thermoplastic resin (A) composition solution onto a support backing having solvent permeability to form an applied layer; a step B of attaching at least one surface of an inorganic glass and the applied layer to each other via an adhesive composition to form a laminate; a step C of subjecting the laminate to a first heat treatment to reduce an amount of a solvent remaining in the applied layer to a predetermined amount; and a step D including peeling the support backing from the laminate and subjecting the resultant to a second heat treatment to dry the applied layer, thereby forming a thermoplastic resin layer.

Claims13

Dependent claims

A manufacturing method for a transparent substrate, comprising:

a step A of applying a thermoplastic resin (A) composition solution onto a support backing having solvent permeability to form an applied layer;
wherein the thermoplastic resin (A) composition solution comprises a solvent and a thermoplastic resin (A);
then
a step B of attaching at least one surface of an inorganic glass and the applied layer to each other via an adhesive composition to form a laminate;
then
a step C of subjecting the laminate to a first heat treatment to reduce an amount of the solvent to a predetermined amount;
and then
a step D of peeling the support backing from the laminate and then subjecting the resultant to a second heat treatment to dry the applied layer, thereby forming a thermoplastic resin layer,
wherein the adhesive composition comprises a solvent, and the solvent in the adhesive composition exhibits the property of dissolving thermoplastic resin (A) contained in the thermoplastic resin (A) composition solution.

6 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/640,444Filed 28 Apr 2011
Priority: JP 2010-10514030 Apr 2010
Published: US 2013/0032277 A17 Feb 2013
Granted: 9 Feb 2016
Term ends: Not estimatedThe source records don’t support an estimate.

Classification58 codes

B29C 65/482
Non-reactive adhesives, e.g. physically hardening adhesives: drying adhesives, e.g. solvent based adhesives
B29C 66/1122
Single lapped joints: single lap to lap joints, i.e. overlap joints
B29C 66/45
Joining substantially flat articles ; Making flat seams in tubular or hollow articles: joining of substantially the whole surface of the articles
B29C 66/73117
Thermal properties: tg, i.e. glass transition temperature