EP 1106724 B1 20030730 - Process for pre-binding fibrous materials
Title (en)
Process for pre-binding fibrous materials
Title (de)
Verfahren zur Vorbindung von Fasermaterialien
Title (fr)
Procédé de pré-liage de matériaux fibreux
Publication
Application
Priority
DE 19959415 A 19991209
Abstract (en)
[origin: EP1106724A1] Pre-bonded fibrous material is prepared by use of a binding agent composition in powder form containing a mixed polymer powder prepared by emulsion polymerization and containing 0.01-25 wt.% of at least one ethylenically unsaturated carboxyl group containing monomer, whereby the mixed polymer has a glass transition temperature (Tg) or m.pt. of greater than 35 degrees C. Pre-bonded fibrous material (I) is prepared by use of a binding agent composition in powder form containing: (A) a mixed polymer powder prepared by emulsion polymerization and drying of monomers comprising vinyl ester, acrylic acid ester, methacrylic acid ester, vinyl aromatics and/or vinyl chloride and 0.01-25 wt.% of at least one ethylenically unsaturated carboxyl group containing monomer, whereby the mixed polymer has a glass transition temperature (Tg) or m.pt. of greater than 35 degrees C; and optionally (B) at least one compound, in powder form, having at least 2 reactive groups that can react with carboxyl groups and having a m.pt. of 35-150 degrees C that is mixed with the fibrous material and spread out or the powdered binding agent is dispersed over the spread fibers and bonded to the fibrous material by heating at 50-250 degrees C. An Independent claim is included for a molded article prepared using the fibrous material (I).
IPC 1-7
D04H 1/60; D04H 1/64; D06M 15/55; D06M 23/08; B29B 11/16; B29C 70/48; B29C 70/44
IPC 8 full level
B29B 11/16 (2006.01); B29C 70/44 (2006.01); B29C 70/48 (2006.01); D04H 1/4218 (2012.01); D04H 1/4242 (2012.01); D04H 1/4334 (2012.01); D04H 1/587 (2012.01); D04H 1/60 (2006.01); D04H 1/64 (2012.01); D04H 1/645 (2012.01); D06M 15/227 (2006.01); D06M 15/233 (2006.01); D06M 15/263 (2006.01); D06M 15/273 (2006.01); D06M 15/333 (2006.01); D06M 15/55 (2006.01); D06M 23/08 (2006.01)
CPC (source: EP US)
D04H 1/4218 (2013.01 - EP US); D04H 1/4242 (2013.01 - EP US); D04H 1/4334 (2013.01 - EP US); D04H 1/587 (2013.01 - EP US); D04H 1/60 (2013.01 - EP US); D06M 15/227 (2013.01 - EP US); D06M 15/233 (2013.01 - EP US); D06M 15/263 (2013.01 - EP US); D06M 15/273 (2013.01 - EP US); D06M 15/333 (2013.01 - EP US); D06M 15/55 (2013.01 - EP US); D06M 23/08 (2013.01 - EP US)
DOCDB simple family (publication)
EP 1106724 A1 20010613; EP 1106724 B1 20030730; DE 19959415 A1 20010621; DE 19959415 C2 20020307; DE 50003093 D1 20030904; US 6472462 B1 20021029
DOCDB simple family (application)
EP 00124328 A 20001116; DE 19959415 A 19991209; DE 50003093 T 20001116; US 70764900 A 20001106