EP 0532445 A1 19930317 - Process for forming paper-based products having cement-based coatings.
Title (en)
Process for forming paper-based products having cement-based coatings.
Title (de)
Verfahren zur Herstellung von Papierprodukten mit Zement enthaltenden Beschichtungen.
Title (fr)
Procédé pour fabriquer des produits à base de papier ayant des revêtements à base de ciment.
Publication
Application
Priority
US 74803191 A 19910821
Abstract (en)
A process for forming a moulded paper product which is degradable in a moisture active landfill is disclosed. The process involves providing a paper pulped paper feedstock, moulding the feedstock to produce a shaped product, drying the shaped product, applying a coating composition on to at least one surface of the shaped product, curing the coating composition and, optionally, hot pressing the resulting product to form a moulded paper product. When the moulded paper product is coated utilizing a particularly preferred coating composition described herein, which is comprised of a cement, at least one of a clay and a sulphate, an aqueous emulsion polymer, and preferably, at least one of an organic acid and a wax, it is readily degradable in a moisture active landfill. <IMAGE>
IPC 1-7
IPC 8 full level
D21H 17/00 (2006.01); D21H 19/64 (2006.01)
CPC (source: EP)
D21H 17/00 (2013.01); D21H 19/64 (2013.01)
Citation (search report)
[A] US 2236900 A 19410401 - GREIDER HAROLD W, et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU MC NL PT SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 92610001 A 19920107; CA 2057474 A 19911210