FILTERFILZE UND BEUTELFILTER MIT MISCHUNGEN VON AUS DIAMINODIPHENYLSULFON ABGELEITETEN FASERN UND HITZEBESTÄNDIGEN FASERN
This invention relates to a filter felt and bag filters comprising an intimate staple fiber blend of 20 to 75 parts by weight polymeric staple fiber containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4′diaminodiphenyl sulfone, 3,3′diaminodiphenyl sulfone...
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| Format: | Patent |
| Sprache: | ger |
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| Zusammenfassung: | This invention relates to a filter felt and bag filters comprising an intimate staple fiber blend of 20 to 75 parts by weight polymeric staple fiber containing a polymer or copolymer derived from a monomer selected from the group consisting of 4,4′diaminodiphenyl sulfone, 3,3′diaminodiphenyl sulfone, and mixtures thereof; and 25 to 80 parts by weight of a heat resistant staple fiber selected from the group consisting on meta-aramid fiber, acrylic fiber, polyphenylene sulfide fiber, and para-aramid fiber; based on 100 parts by weight of the polymeric fibers and heat resistant fibers in the felt. |
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