Global Patent Index - EP 0819788 A3

EP 0819788 A3 20000202 - Needling aid for producing needle felts, a needle felt produced by using it, and a method for production thereof

Title (en)

Needling aid for producing needle felts, a needle felt produced by using it, and a method for production thereof

Title (de)

Verfahrenshilfsmittel für ein Nadelfilz, ein unter Anwendung diese Verfahrenshilfsmittel hergestellter Nadelfilz und Verfahren zur Herstellung

Title (fr)

Aide d'aiguilletage pour le production de feutres aiguilletés, feutre aiguillete fabrique utilisant cette aide et procédéde production

Publication

EP 0819788 A3 (EN)

Application

EP 97111983 A

Priority

DE 19628477 A

Abstract (en)

[origin: EP0819788A2] The present invention concerns a needle felt of mineral wool, in particular glass wool, which even at elevated temperatures does not release any toxic products, in particular no formaldehyde, into the surrounding atmosphere and therefore has optimum suitability for use as a heat insulating material in household appliances such as ovens or cookers. Freeness from formaldehyde of the needle felt results from utilisation of a novel needling aid on the basis of halogenated polymers, in particular fluorated polymers.

IPC 1-7

D04H 1/46; C03C 25/02; D06M 15/507; D06M 15/53

IPC 8 full level

C03C 25/00 (2006.01); D04H 1/4218 (2012.01); D04H 1/46 (2012.01); D06M 15/507 (2006.01); D06M 15/53 (2006.01)

CPC (source: EP)

D04H 1/4218 (2013.01); D04H 1/46 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0819788 A2 19980121; EP 0819788 A3 20000202; EP 0819788 B1 20030507; DE 19628477 C1 19980122; ES 2197268 T3 20040101; SI 0819788 T1 20031031

DOCDB simple family (application)

EP 97111983 A 19970714; DE 19628477 A 19960715; ES 97111983 T 19970714; SI 9730567 T 19970714