Treatment of fibrous substrates, such as carpet with fluorochemical

Claim 2

A process for treating fibrous substrate to impart oil and water repellency to the surface thereof, which comprises contacting said substrate with a fluorochemical, characterized in that said fluorochemical is a fluorochemical amine compound containing one or more fluoroaliphatic radicals and one or more salt-forming amino groups which can have, as N-substituents, groups containing electron-withdrawing moieties, or salts, of said compound.

Claim 3

The process of claim 1 further characterized by the feature that said compound and salts thereof have the formula where R f is a fluoroaliphatic radical, Q is an organic linking moiety, N is a salt-forming amino nitrogen atom, R 1 is a hydrogen or an alkyl group, R 2 is a monovalent group selected from the class of R fQ -,-alkyl and aryl groups, and,combinations of such groups, which groups can contain a hetero atom, RCONH- (where R is alkyl or aryl), and (where R is alkylene), or R 2 is a divalent group selected from the class of alkylene and arylene groups, combinations thereof, and - R CONH- (where R is alkylene or arylene), R 3 is an alkyl group which can be substituted with one or more polar moieties or R 3 can be R f -Q-, or -CH 2 CH 2 E where E is an electron-withdrawing moiety, R 4 is an alkylene or arylene group, A is an anion derived from a protonic acid or an alkylating agent, s is 0 or 1, x is 0 or 1, y is 1 to 4, p is 0 or 1, z is 0 to 4, with the provisos that when y is 1, then p is 0 and z is 0 or 1, when y is 2, then R 2 is said divalent group, and the sum of s and x is at least 1.

Claim 4

The process of claim 1 further characterized by the feature that said compound and salts thereof have the formula where Rf is a fluoroaliphatic radical, Q is.an organic linking moiety, N is a salt-forming amino nitrogen atom, R 1 is a hydrogen or an alkyl group, R 2 is a monovalent group selected from the class of R fQ -, alkyl and aryl groups, and combinations of such groups, which groups can contain a hetero atom, RCONH- (where R is alkyl or aryl), and (where R is alkylene), or R 2 is a divalent group selected from the class of alkylene and arylene groups, combinations thereof, and -RCONH- (where R is alkylene or arylene), R 3 is an alkyl group which can be substituted with one or more polar moieties or R 3 can be R f -Q-, or -CH 2 CH 2 E where E is an electron-withdrawing moiety, R 4 is an alkylene or arylene group, A is an anion derived from a protonic acid or an alkylating agent, s is 0 or 1, y is 1 or 2, p is 0 or 1, and z is 0 to 2, with the provisos that when y is 1, then p is 0 and z is 0 or 1, when y is 2, then R 2 is said divalent group.

Claim 5

The process of claim 1, further characterized by the feature that said substrate is textile fiber, paper, or leather.

Claim 6

The process of claim 1, further characterized by the feature that said substrate is carpet.

Claim 7

The process of claim 1, further characterized by the feature that said contacting is carried out by immersing said substrate in an aqueous bath containing said compound or salt thereof.

Claim 8

The process of claim 6, further characterized by the feature that said bath is a dyebath containing a dye for said substrate.

Claim 9

The process of claim 1, further characterized by the feature that said dyeing carpet using a compound has the formula

Claim 10

A fibrous substrate having deposited on the surface thereof fluorochemical amine compound containing unc or more fluoroaliphatic radicals and one or more salt-forming amino groups which have, as N-substituents, groups containing electron-withdrawing moieties, or salt of said compound.

Claim 11

A fibrous substrate having deposited on the surface thereof fluorochemical amine compound containing unc or more fluoroaliphatic radicals and one or more salt-forming amino groups which have, as N-substituents, groups containing electron-withdrawing moieties, or salt of said compound.

Claim 12

Fluorochemical compound containing one or more fluoroaliphatic radicals and characterized by one or more salt-forming amino groups which have, as N-substituents, groups containing an electron-withdrawing moiety.

Claim 13

Fluorochemical compound containing one or more fluoroaliphatic radicals and characterized by one or more salt-forming amino groups which have, as N-substituents, groups containing an electron-withdrawing moiety.

Claim 14

Compounds of claim 10 further characterized by the formula where R f is a fluoroaliphatic radical, Q is an organic linking moiety, N is a salt-forming amino nitrogen atom, H 1 is a hydrogen or an alkyl group, R 2 is a monovalent group selected from the class of R fQ -, alkyl and aryl groups, and combinations of s.uch groups, which groups can contain a hetero atom, RCONH- (where R is alkyl or aryl), and (where R is alkylene), or R 2 is a divalent group selected from the class of alkylene and arylene groups, combinations thereof, and -RCONH- (where R is alkylene or arylene), R 3 is an alkyl group which can be substituted with one or more polar moieties or R 3 can be R f -Q-, or -CH 2 CH 2 E where E is an electron-withdrawing moiety, R 4 is an alkylene or arylene group, A is an anion derived from a protonic acid or an alkylating agent, s is 0 or 1, x is 1, y is 1 to 4, p is 0 or 1, z is 0 to 4, with the provisos that when y is 1, then p is 0 and z is 0 or 1, when y is 2, then R 2 is said divalent group, and the sum of s and x is at least 1.

Claim 15

A compound of claim 10 further characterized bv the formula