EP 0446870 A1 19910918 - High strength papers from floc and fibers.
Title (en)
High strength papers from floc and fibers.
Title (de)
Hochfestpapiere aus Flocken und Fasern.
Title (fr)
Papiers à haute résistance faits à partir de flocs et de fibres.
Publication
Application
Priority
- US 49158190 A 19900312
- US 64059291 A 19910118
Abstract (en)
Fibrid-floc papers from a novel combination of materials yield unexpected improvements in strength.
IPC 1-7
IPC 8 full level
D21H 13/26 (2006.01); D21H 13/40 (2006.01); D21H 13/50 (2006.01); D21H 15/02 (2006.01)
CPC (source: EP US)
D21H 13/26 (2013.01 - EP US); D21H 13/40 (2013.01 - EP); D21H 13/50 (2013.01 - EP); Y10S 428/902 (2013.01 - EP); Y10S 428/903 (2013.01 - EP); Y10T 428/2969 (2015.01 - EP US)
Citation (search report)
- [XP] EP 0366316 A1 19900502 - DU PONT [US]
- [A] US 4840838 A 19890620 - WYSS KURT H [CH]
- [AD] US 2999788 A 19610912 - WINTHROP MORGAN PAUL
- [Y] RESEARCH DISCLOSURE, HAVANT, GB, vol 188, dec.1979, disclosure nr 18823 : " Mixed aramid papers "
Designated contracting state (EPC)
BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0446870 A1 19910918; EP 0446870 B1 19940518; AU 645529 B2 19940120; AU 7274791 A 19910912; CA 2037232 A1 19910913; CA 2037232 C 20020129; DE 69101997 D1 19940623; DE 69101997 T2 19941201; JP 2841905 B2 19981224; JP H0533289 A 19930209
DOCDB simple family (application)
EP 91103757 A 19910312; AU 7274791 A 19910307; CA 2037232 A 19910227; DE 69101997 T 19910312; JP 6757191 A 19910308