Global patent index - EP 0986656 A1

EP 0986656 A1 2000-03-22 - MONOFILAMENTS WITH SPLIT ENDS

Title (en)

MONOFILAMENTS WITH SPLIT ENDS

Title (de)

MONOFILAMENTE MIT GESPALTENEN ENDEN

Title (fr)

MONOFILAMENTS A EXTREMITES FENDUES

Publication

EP 0986656 A1 (EN)

Application

EP 97918786 A

Priority

US 9706780 W

Abstract (en)

[origin: WO9848086A1] Monofilaments with split ends. The monofilaments can be used to form toothbrush bristles having flagged or feathered tips. Each of the monofilaments has a plurality of internal fusion lines and at least four voids, wherein the voids comprise between 5 and 20 % of the cross-sectional area of the monofilaments. Preferably, the monofilaments each have a diameter in a range of 0.0025 to 0.012 inches, and have a hexalocular or an octalocular configuration. The monofilaments are manufactured by extruding a plurality of thermoplastic polymeric streams, rotating a plurality of cutting blades above 1000 rpm, and placing a plurality of cutting blades in contact with end portions of the plurality of thermoplastic polymeric streams to form split ends.

IPC 1-7 (main, further and additional classification)

D01D 5/08; A46B 1/00; A46B 9/04

IPC 8 full level (invention and additional information)

A46B 9/04 (2006.01); A46D 1/00 (2006.01); D01D 4/02 (2006.01); D01D 5/24 (2006.01); D01D 5/253 (2006.01); D01F 6/60 (2006.01); D01F 6/62 (2006.01)

CPC (invention and additional information)

A46D 1/0238 (2013.01); A46D 1/00 (2013.01); A46D 1/0292 (2013.01); D01D 5/24 (2013.01); D01D 5/253 (2013.01); A46B 2200/1066 (2013.01)

Citation (search report)

See references of WO 9848086A1

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

WO 9848086 A1 19981029; AU 2680197 A 19981113; CA 2287342 A1 19981029; CA 2287342 C 20070116; DE 69731666 D1 20041223; DE 69731666 T2 20060216; EP 0986656 A1 20000322; EP 0986656 B1 20041117; JP 2001523308 A 20011120; JP 3958801 B2 20070815

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