EXTRUDED RESIN PLATE AND MANUFACTURING METHOD FOR SAME

Title:

EXTRUDED RESIN PLATE AND MANUFACTURING METHOD FOR SAME

Document Type and Number:

WIPO Patent Application WO/2018/199213

Kind Code:

A1

Abstract:

The present invention provides a manufacturing method for an extruded resin plate that is suitable as a protective plate for a liquid crystal display or the like. A laminate body, in which a methacrylic resin-containing layer has been laminated on least one surface of a polycarbonate-containing layer, is co-extruded from a T-die in a molten state and is cooled using three or more mutually-adjacent cooling rollers, and the obtained extruded resin plate is taken out by take-out rollers. The total temperature (TX) of the laminate body when interposed between the second cooling roller and third cooling roller is set to be at least +10°C relative to the glass transition temperature (Tg (PC)) of the polycarbonate-containing layer, and the total temperature (TT) of the laminate body at the position of detachment from the final cooling roller is set to be a range of -2°C to +19°C relative to the glass transition temperature (Tg (PC)). The peripheral speed ratio (V4/V2) between the peripheral speed (V4) of the take-out rollers and the peripheral speed (V2) of the second cooling roller is set to be at least 0.98 but less than 1.0.

Inventors:

FUNAZAKI KAZUO (JP)

Application Number:

PCT/JP2018/016931

Publication Date:

November 01, 2018

Filing Date:

April 26, 2018

Export Citation:

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Assignee:

KURARAY CO (JP)

International Classes:

B29C48/885

Domestic Patent References:

WO2016042727A1	2016-03-24
WO2015093037A1	2015-06-25
WO2011145630A1	2011-11-24
WO2015093037A1	2015-06-25
WO2016038868A1	2016-03-17
WO2010013557A1	2010-02-04

Foreign References:

JP2007185956A	2007-07-26
JP2009248416A	2009-10-29
JP2007118597A	2007-05-17
JP2004299199A	2004-10-28
JP2006103169A	2006-04-20
JP2010085978A	2010-04-15
JP2017089450A	2017-05-25

Other References: