发明名称 |
ETHYLENE-MODIFIED POLYVINYL ALCOHOL POLYMER FILM |
摘要 |
The present invention contains an ethylene-modified PVA polymer having favorable stretching characteristics and production characteristics and having an ethylene unit content of 1-4 mol%, and satisfies the belowmentioned formulas (I) and (II): Deltan(MD)Ave-0.1×10-3 <= Deltan(TD)Ave <= Deltan(MD)Ave+0.25×10-3 (I) and Deltan(TD)Ave <= 2.5×10-3 (II) (in the abovementioned formulae: Deltan(MD)Ave indicates value of the birefringence in the direction of machine flow of ethylene-modified PVA polymer film averaged in the thickness direction of the film; and Deltan(TD)Ave indicates the value of the birefringence in the widthwise direction of the ethylene-modified PVA polymer film averaged in the thickness direction of the film). |
申请公布号 |
WO2013137056(A1) |
申请公布日期 |
2013.09.19 |
申请号 |
WO2013JP55935 |
申请日期 |
2013.03.05 |
申请人 |
KURARAY CO.,LTD. |
发明人 |
MORI, YASUJIRO;NAKAI, TOSHIO;SANADA, KYOTA;KAZETO, OSAMU;HIKASA, SHINTARO;KATSUNO, RYOJI |
分类号 |
C08J5/18;B29C55/04;B29K29/00;B29L7/00;G02B5/30 |
主分类号 |
C08J5/18 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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