Assignee: Freudenberg; Carl

Location: Weinheim/Bergstr, DE
No. of patents: 4

Number	Title	Issue Date
5466517	Spundbonded fabrics comprising biodegradable polycaprolactone filaments and process for its manufacture A spunbonded fabric comprises continuous thermoplastic filaments, which adhere to one another at their intersecting points without binder, and whose material comprises at least 50 weight % biodegradable polycaprolactone having a mean molecular weight of f...	11/14/1995
5316832	Biodegradable sheet for culturing sewage denitrifiers A biodegradable substrate in sheet form which acts as a source of carbon and hydrogen in oxygen-poor water in biological water-treatment stages. The substrate is covered with at least one layer of a population of spontaneously growing denitrifiers. The su...	05/31/1994
5279878	Flame barrier made of nonwoven fabric Disclosed is a flame barrier made of a nonwoven fabric of partially graphitized polyacrylonitrile fibers having a weight per unit area of 40 to 100 g/m2 and a maximum thhickness of 1.8 mm. The nonwoven fabric is bonded with highly energetic wat...	01/18/1994
5167740	Method of making a filter insert of nonwoven material in the form of a pleated pack A filter insert of nonwoven material in the form of a pleated pack is self-supporting and consists of thermally weldable nonwoven (1). Each of the two outside ends (3) of the pleated pack (2) is hemmed by the nonwoven material (1) forming the pleats, whic...	12/01/1992

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