C - Chemistry – Metallurgy – 09 – D
Patent
C - Chemistry, Metallurgy
09
D
C09D 191/06 (2006.01) B27N 3/08 (2006.01) C09D 123/30 (2006.01)
Patent
CA 2363004
The invention provides improved release agents used in processes for preparing molded lignocellulosic articles. The release agents are preferably applied as an emulsion in processes for preparing molded articles such as oriented strand board, waferboard or plywood. The release agents contain a co-oxidized blend of a first wax and a second wax, wherein the first wax has a Brookfield viscosity which is at least about 150 mPas at 140 ° C and the second wax has a Brookfield viscosity which is less than about 100 mPas at 140 ° C.
L'invention concerne des agents de libération améliorés, utilisés dans des procédés de préparation d'articles lignocellulosiques moulés. Ces agents de libération sont de préférence appliqués sous forme d'émulsion dans des procédés de préparation d'articles moulés tels que des panneaux, des panneaux de grandes particules ou du contre-plaqué. Ils contiennent un mélange co-oxydé d'une première et d'une seconde cire, la première cire possédant une viscosité Brookfield d'au moins environ 150 mPas à 140 ·C, et la seconde cire possédant une viscosité Brookfield inférieure à environ 100 mPas à 140 ·C.
Danneels Dirk
Dekerf Marc
Seven Manfred K.
Alliedsignal Inc.
Gowling Lafleur Henderson Llp
Honeywell International Inc.
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