EP 1045937 A1 20001025 - FOAM PROCESS WEB MANUFACTURE OF FILTER OR OTHER PAPERS FROM MECHANICAL PULP
Title (en)
FOAM PROCESS WEB MANUFACTURE OF FILTER OR OTHER PAPERS FROM MECHANICAL PULP
Title (de)
SCHAUMVERFAHREN ZUR HERSTELLUNG VON PAPIERBAHNEN FÜR FILTER ODER ÄHNLICHEM AUS MECHANISCHER PULPE
Title (fr)
FABRICATION, SELON LE PROCEDE PAR MOUSSE, DE BANDES DE PAPIER POUR FILTRES OU AUTRES A PARTIR DE PATE MECANIQUE
Publication
Application
Priority
- FI 9800706 W 19980909
- US 5955997 P 19970919
- US 9845898 A 19980617
Abstract (en)
[origin: WO9915730A1] Non-woven webs of fibrous material are made by the foam process using mechanical (e.g. CTMP, CMP, TMP, or ground wood) pulp, typically at least 50 % mechanical pulp and desirably from about 60 - substantially 100 % mechanical pulp. The webs produced are preferably made into automotive filter paper, such as by impregnation with resin or latex, grooving, pleating, curing the resin or latex, etc. For example, a sheet made from the foam process may have at least 60 % mechanical pulp and at least 5 % long fibers, which may be rayon, HPZ, cotton, wool, and mixtures thereof. The filter element is typically placed in combination with an automotive oil filter casing, an automotive air filter casing, an automotive fuel filter casing, or an automotive cabin filter casing.
IPC 1-7
IPC 8 full level
B01D 39/18 (2006.01); D21F 11/00 (2006.01); D21H 17/00 (2006.01); D21H 27/08 (2006.01)
CPC (source: EP KR)
D21F 11/002 (2013.01 - EP KR)
Citation (search report)
See references of WO 9915730A1
Designated contracting state (EPC)
AT BE CH DE DK ES FI FR GB IT LI LU NL SE
DOCDB simple family (publication)
WO 9915730 A1 19990401; CN 1270648 A 20001018; EP 1045937 A1 20001025; JP 2001522946 A 20011120; KR 20010030634 A 20010416
DOCDB simple family (application)
FI 9800706 W 19980909; CN 98809295 A 19980909; EP 98943914 A 19980909; JP 2000513013 A 19980909; KR 20007002965 A 20000320