EP 0694094 B1 19970903 - FIBROUS PRODUCTS AND A PROCESS FOR PREPARING FLAME RETARDANT FIBROUS PRODUCTS
Title (en)
FIBROUS PRODUCTS AND A PROCESS FOR PREPARING FLAME RETARDANT FIBROUS PRODUCTS
Title (de)
FASERIGE PRODUKTE UND VERFAHREN ZUR HERSTELLUNG VON FLAMMHEMMENDEN FASERIGEN PRODUKTEN
Title (fr)
PRODUITS FIBREUX ET PROCEDE DE PREPARATION DE PRODUITS FIBREUX NON INFLAMMABLES
Publication
Application
Priority
- FI 931721 A 19930415
- FI 9400142 W 19940415
Abstract (en)
[origin: WO9424359A1] The invention relates to organic fiber-based products and a method of manufacturing such products. According to the method, the fibrous raw material is milled together with a fire-retardant agent to a desired degree of defibering to the end of producing an at least essentially fire-retardant product. According to the invention, the fibrous raw material is admixed with at least a portion of the amount of the fire-retardant agent to be used, after which the material is milled to a desired degree of defibering using a refiner capable of exerting a milling action. Accordingly, when making a product suited for use as thermal insulation, 1/4 - 1/2 of the fire-retardant material is introduced to the fibrous base material prior to defibering in anhydrous form and 1/2 - 3/4 of the fire-retardant material is introduced to the fibrous base material after defibering in hydrous form. According to the invention, recycled paper can be used in the production of an at least essentially fire-retardant organic fiber-based material in which the anhydrous component incorporated therein swells during moisturizing, binds the fibers to each other and thus achieves a structure free from self-compressive settling.
IPC 1-7
IPC 8 full level
D04H 1/407 (2012.01); D04H 1/42 (2012.01); D04H 1/425 (2012.01); D04H 1/4266 (2012.01); D04H 1/4382 (2012.01); D21H 21/34 (2006.01)
CPC (source: EP)
D04H 1/407 (2013.01); D04H 1/4209 (2013.01); D04H 1/425 (2013.01); D04H 1/4266 (2013.01); D21H 21/34 (2013.01)
Designated contracting state (EPC)
AT BE CH DE FR GB LI NL SE
DOCDB simple family (publication)
WO 9424359 A1 19941027; AT E157716 T1 19970915; AU 6431294 A 19941108; DE 69405385 D1 19971009; DE 69405385 T2 19980326; EP 0694094 A1 19960131; EP 0694094 B1 19970903; FI 931721 A0 19930415; FI 931721 A 19941016; FI 95401 B 19951013; FI 95401 C 19960125
DOCDB simple family (application)
FI 9400142 W 19940415; AT 94911975 T 19940415; AU 6431294 A 19940415; DE 69405385 T 19940415; EP 94911975 A 19940415; FI 931721 A 19930415