EP 0003481 A2 19790822 - Highly filled sheets and method of preparation thereof.
Title (en)
Highly filled sheets and method of preparation thereof.
Title (de)
Hochgefüllte Blätter und Verfahren zu ihrer Herstellung.
Title (fr)
Feuilles fortement chargées et procédé pour leur préparation.
Publication
Application
Priority
US 87445878 A 19780202
Abstract (en)
A sheet which is a composite of (A) from about 1 percent to about 30 percent of a water-dispersible fiber such as wood fiber, (B) from about 2 percent to about 30 percent of a film-forming, water-insoluble organic polymer such as a copolymer of styrene and butadiene, and (C) from about 60 percent to about 95 percent of a finely-divided, substantially water-insoluble, non-fibrous, inorganic filler such as magnesium hydroxide is prepared by steps comprising: (I) providing an aqueous dispersion of the fiber; (II) mixing therewith (A) the inorganic filler and (B) the organic polymer in the form of an ionically stabilized latex; (III) colloidally destabilizing the resulting mixture to form a fibrous agglomerate in aqueous suspension; (IV) distributing and draining the aqueous dispersion on a porous substrate such as a wire to form a wet web; and (V) drying the web.
IPC 1-7
IPC 8 full level
D21H 17/33 (2006.01); D21H 17/35 (2006.01); D21H 17/43 (2006.01); D06N 7/00 (2006.01); D21H 17/67 (2006.01); D21H 23/76 (2006.01)
CPC (source: EP)
D21H 17/35 (2013.01); D21H 17/43 (2013.01); D21H 17/67 (2013.01); D21H 17/675 (2013.01); D21H 23/765 (2013.01)
Designated contracting state (EPC)
DE GB NL SE
DOCDB simple family (publication)
EP 0003481 A2 19790822; EP 0003481 A3 19790905; EP 0003481 B1 19821027; AU 4298178 A 19790809; AU 524468 B2 19820916; BE 872966 A 19790621; BR 7900060 A 19790911; CA 1112006 A 19811110; CH 640026 A5 19831215; DE 2862076 D1 19821202; DK 153575 B 19880725; DK 153575 C 19890102; DK 580378 A 19790803; ES 476778 A1 19800301; FI 64675 B 19830831; FI 64675 C 19831212; FI 783958 A 19790803; FR 2416291 A1 19790831; FR 2416291 B1 19821126; IT 1110869 B 19860106; IT 7852400 A0 19781221; JP S54106605 A 19790821; JP S57112500 A 19820713; JP S5749680 B2 19821023; NO 154350 B 19860526; NO 154350 C 19860903; NO 784302 L 19790803; NZ 189303 A 19820531
DOCDB simple family (application)
EP 78101807 A 19781221; AU 4298178 A 19781229; BE 192481 A 19781221; BR 7900060 A 19790105; CA 318286 A 19781220; CH 1303578 A 19781221; DE 2862076 T 19781221; DK 580378 A 19781222; ES 476778 A 19790111; FI 783958 A 19781221; FR 7836629 A 19781228; IT 5240078 A 19781221; JP 15842278 A 19781221; JP 9016881 A 19810611; NO 784302 A 19781220; NZ 18930379 A 19790104