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发明名称
METHOD OF PREPARING FIBROUS, NON-WOVEN WEBS
摘要
<p>Paper to be used as a filter element is strengthened by impregnating with aqueous emulsion of a phenolic resin, drying the paper and curing the resin.</p>
申请公布号
WO1990007608(A1)
申请公布日期
1990.07.12
申请号
GB1989001534
申请日期
1989.12.22
申请人
发明人
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