发明名称 |
Photographic polyolefin coated base papers and method of making |
摘要 |
Polyolefin coated photographic base papers are stabilized by a polymeric hindered amine (Chimassorb 944) having a mean molecular weight above 2500. The stabilizer is highly effective and overcomes a diminution of opacity noted with the use of phosphonate esters of the prior art.
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申请公布号 |
US4582785(A) |
申请公布日期 |
1986.04.15 |
申请号 |
US19840670060 |
申请日期 |
1984.11.09 |
申请人 |
THE WIGGINS TEAPE GROUP LIMITED |
发明人 |
WOODWARD, ANTONY I.;BARNES, GARRY;TYLER, GEORGE |
分类号 |
C08K5/3492;D21H19/20;G03C1/79;(IPC1-7):G03C1/86 |
主分类号 |
C08K5/3492 |
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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