PROCESSO PARA A FABRICACAO DE SEMI-FABRICADOS DE COURO

A tanning agent formulation obtained by reacting 1 mole of an aliphatic omega , omega '- dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formula R1-O-[(C2H4O)x-(C3H6O)y-(C4H8O)z]n-H whereby n is an...

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Bibliographic Details
Main Authors HEINZ MATSCHKAL, FRIEDRICH LANDBECK, JOZEF SAGALA, PAUL RATHFELDER
Format Patent
LanguagePortuguese
Published 21.11.1989
Edition4
Subjects
APPARATUS THEREFOR
CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING
CHEMISTRY
COMPOSITIONS FOR TANNING
HIDES
LEATHER
METALLURGY
PELTS
SKINS
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Abstract A tanning agent formulation obtained by reacting 1 mole of an aliphatic omega , omega '- dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formula R1-O-[(C2H4O)x-(C3H6O)y-(C4H8O)z]n-H whereby n is an integer from 0 to 10, x+y+z is an integer from 1 to 20, wherein the alkoxy groups may be arranged in any order, and R1 is H, C1-C12 alkyl, or C1C12 alkyl having one or more hydroxyl groups, wherein n is not 0 for R1=H is disclosed. Pelts pretanned with the formulation have improved mold resistance and are free of tanning metal salts and formaldehyde.
AbstractList A tanning agent formulation obtained by reacting 1 mole of an aliphatic omega , omega '- dialdehyde having 2-8 carbon atoms in the form of an aqueous solution of about 3-60% strength with about 0.2-4 moles of a hydroxy compound of the formula R1-O-[(C2H4O)x-(C3H6O)y-(C4H8O)z]n-H whereby n is an integer from 0 to 10, x+y+z is an integer from 1 to 20, wherein the alkoxy groups may be arranged in any order, and R1 is H, C1-C12 alkyl, or C1C12 alkyl having one or more hydroxyl groups, wherein n is not 0 for R1=H is disclosed. Pelts pretanned with the formulation have improved mold resistance and are free of tanning metal salts and formaldehyde.
Author JOZEF SAGALA
FRIEDRICH LANDBECK
HEINZ MATSCHKAL
PAUL RATHFELDER
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Snippet A tanning agent formulation obtained by reacting 1 mole of an aliphatic omega , omega '- dialdehyde having 2-8 carbon atoms in the form of an aqueous solution...
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SubjectTerms APPARATUS THEREFOR
CHEMICAL TREATMENT OF HIDES, SKINS OR LEATHER, e.g. TANNING,IMPREGNATING, FINISHING
CHEMISTRY
COMPOSITIONS FOR TANNING
HIDES
LEATHER
METALLURGY
PELTS
SKINS
Title PROCESSO PARA A FABRICACAO DE SEMI-FABRICADOS DE COURO
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