US 8,409,385 B2Granted

Transparent laminate and process for producing the same

AssigneeAsahi Glass Company, Limited

InventorsHiroshige Ito, Satoshi Niiyama, Satoshi Kikuchi

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Abstract

A transparent laminate is produced by preparing a pair of transparent substrates, forming a sealing portion along the periphery on one of the transparent substrates for sealing a curable resin composition, supplying the curable resin composition in a region on the transparent substrate surrounded by the sealing portion, overlaying the other transparent substrate on the supplied curable resin composition in a reduced pressure atmosphere so that the curable resin composition is sealed as it is sandwiched between the pair of transparent substrates, and subsequently curing the curable resin composition in an atmosphere having a higher pressure than the pressure of the atmosphere in which the composition is sandwiched, to produce the transparent laminate.

Claims19

Dependent claims

A process, comprising

evacuating a chamber that comprises a pair of transparent substrates, wherein a first transparent substrate has a sealing member at a periphery of the first transparent substrate and a curable resin composition present within the periphery of the first transparent substrate to produce an atmosphere of reduced pressure in the chamber,
sandwiching the curable resin composition between a pair of transparent substrates in the atmosphere of reduced pressure,
sealing the curable resin composition at the reduced pressure of the reduced pressure atmosphere by a sealing portion that maintains the reduced pressure of the sealed space,
increasing the pressure on the substrates to a pressure higher than the pressure of the atmosphere during said sandwiching to compress the laminate, and
curing the curable resin composition at said pressure higher than the pressure of the atmosphere during said sandwiching,
to obtain a transparent laminate.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/490,407Filed 24 Jun 2009 · continuation
Priority: JP 2006-35496928 Dec 2006
Published: US 2010/0215966 A126 Aug 2010
Granted: 2 Apr 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification46 codes

B32B 17/10706
Characterized by the resin layer, i.e. interlayer: being photo-polymerized
B29C 65/1406
Characterised by the type of electromagnetic or particle radiation: ultraviolet [UV] radiation
B29C 65/1435
Characterised by the way of heating the interface: at least passing through one of the parts to be joined, i.e. transmission welding
B29C 65/1445
Characterised by the way of heating the interface: heating both sides of the joint