发明名称 |
RECOVERY OF POLYESTER FROM SPENT FILM |
摘要 |
<p>Spent photographic film having at least a polyester base, blue dye, and a polyvinylidene binder layer, and from which the photographic emulsion has been removed, is treated to recover usable polyester. The spent photographic film is heated in cyclohexanone at a temperature sufficient and for a time sufficient to remove both polyvinylidene and dye compounds from the polyester base. The recovered polyester may then be mixed with virgin polyester and extruded to produce a polyester product comprising in part recovered polyester and in part virgin polyester.</p> |
申请公布号 |
WO9301525(A1) |
申请公布日期 |
1993.01.21 |
申请号 |
WO1992US05493 |
申请日期 |
1992.06.30 |
申请人 |
FIBER INDUSTRIES, INC. |
发明人 |
MOORE, TONY, C.;NICHOLS, CARL, S.;TUCKER, JOSEPH, C. |
分类号 |
C08J11/08;G03C11/24 |
主分类号 |
C08J11/08 |
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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