Leather treatment
AssigneeMinnesota Mining and Manufacturing Company
InventorNathaniel P. Langford
Life of this patent
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Abstract
Composition useful for treating leather, textiles, and cellulosic materials to impart a high degree of water and oil repellancy thereto. The composition contains a fluorochemical compound having (a) a fluoroaliphatic moiety, (b) an aliphatic moiety, and (c) an organic group which connects moiety (a) and moiety (b).
Claims14
Method of treating a material selected from the group consisting of leather, textiles, and cellulosics in order to provide enhanced water and oil repellancy thereto comprising the step of applying to said material a composition comprising a compound represented by the formula:
- R.sub.f --Q--A
- wherein
- R.sub.f represents a member selected from the group consisting of ##STR14## n represents a positive integer from 3 to 20, inclusive, R represents an alkyl radical having 1 to 4 carbon atoms,
- R.sup.1 represents an alkylene radical having 1 to 12 carbon atoms,
- R.sup.2 represents an alkylene radical having 1 to 4 carbon atoms,
- A represents a hydrocarbon group having from 5 to 36 carbon atoms, said hydrocarbon group having at least one unsaturated site, said hydrocarbon group optionally being substituted with a hydroxyl group or a carboxyl group,
- Q represents a member selected from the group consisting of ##STR15## wherein T represents an aliphatic group, a cycloaliphatic group, or an aromatic group.
Composition for treating leather, textiles, and cellulosic materials in order to provide enhanced water and oil repellancy thereto, said composition comprising:
- (a) a compound represented by the formula
- R.sub.f --Q--A
- wherein
- R.sub.f represents a member selected from the group consisting of ##STR16## n represents a positive integer from 3 to 20, inclusive, R represents an alkylene radical having 1 to 4 carbon atoms,
- R.sup.1 represents an alkylene radical having 1 to 12 carbon atoms,
- R.sup.2 represents an alkylene radical having 1 to 4 carbon atoms;
- A represents a hydrocarbon group having from 5 to 36 carbon atoms, said hydrocarbon group having at least one unsaturated site, said hydrocarbon group optionally being substituted with a hydroxyl group or a carboxyl group;
- Q represents a member selected from the group consisting of ##STR17## wherein T represents an aliphatic group, a cycloaliphatic group, or an aromatic group;
- and
- (b) a vehicle that is not deleterious to said leather, dyes that have been applied to said leather, said textiles, or said cellulosic materials.
Dependencies are inferred from the claim text.