发明授权
US6071682A Control of core-set curl of photographic film supports by coated layers
失效
通过涂层控制摄影胶片载体的芯组卷曲
- 专利标题： Control of core-set curl of photographic film supports by coated layers
- 专利标题（中）： 通过涂层控制摄影胶片载体的芯组卷曲
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申请号： US948219申请日： 1997-10-09
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公开(公告)号： US6071682A公开(公告)日： 2000-06-06
- 发明人: Jehuda Greener , Paul D. Yacobucci , Beverly A. Contestable , Catherine A. Falkner
- 申请人： Jehuda Greener , Paul D. Yacobucci , Beverly A. Contestable , Catherine A. Falkner
- 申请人地址： NY Rochester
- 专利权人： Eastman Kodak Company
- 当前专利权人： Eastman Kodak Company
- 当前专利权人地址： NY Rochester
- 主分类号： B32B27/08
- IPC分类号： B32B27/08 ; G03C1/795 ; G03C1/81
摘要：
The present invention is photographic film base which includes a polymeric support having a first side and a second side and a glass transition temperature (Tg.sub.s). A polymeric layer is superposed on the first side of the polymeric support, the polymer layer having a glass transition temperature Tg.sub.L which is greater than the glass transition temperature of the support Tg.sub.s. The polymeric layer has a thickness of at least 2.5 percent of the thickness of the support.
公开/授权文献
- US4777188A Process for producing foamed elastomeric compositions 公开/授权日：1988-10-11