Anionic/cationic masonry sealing systems
First Claim
1. A composition comprising an aqueous first mixture, having a maximum molar ratio of acid to base of 0.6 and providing water repellency when applied to a substrate surface without etching of said surface, of A. an anionic aqueous fluoroalkyl phosphate solution which provides at least about 75% of the total fluorine content of said first mixture comprising a second mixture of mono(perfluoroalkyl) phosphate and bis(perfluoroalkyl) phosphate of Formula IA,
[Rf—
- (O)j]x—
P(O)—
O−
X+)(3-x)
Formula 1A wherein;
Rf is selected from the group consisting of F(CF2CF2)d(CH2)a—
, F(CF2CF2)dCH2CH2(OCH2CH2)b—
, F(CF2CF2)d—
, F(CF2CF2)dCH═
CH(CH2)c—
, and C8F17SO2N(R5)CH2CH2—
;
a is from about 2 to about 10, b is from about 3 to about 20, c is from about 2 to about 20, d is 1 to about 8, or a mixture thereof, R5 is H or an aliphatic group containing 1 to about 4 carbon atoms, x is from about 1 to about 2, j is 1 or 0, or a mixture thereof, and X is hydrogen or M, M is an ammonium ion, an alkali metal ion, or an alkanolammonium ion, or 2) a phosphate of the structure of Formula IB wherein Rf′
is a fluoroaliphatic group having a linear or branched perfluorocarbon chain having from about 2 to about 20 carbon atoms, R6 is an alkylene group having from 1 to about 8 carbon atoms, Z is —
O—
, —
S—
, or —
NH—
, and M is as defined above in Formula IA, and B. a cationic fluoroalkyl(meth)acrylate or perfluoroalkylether (meth)acrylate copolymer present at a minimum of 0.3 g per 100 g of said first mixture, and comprising monomers copolymerized in the following percentages by weight;
(a) from about 40% to about 92% of at least one monomer of formula 2A
Rf′
-Q-A-C(O)—
C(R7)═
CH2
2A wherein;
Rf′
is a fluoroaliphatic group having a linear or branched perfluorocarbon chain having from about 2 to about 20 carbon atoms, R7 is H or an aliphatic group containing 1 to about 4 carbon atoms, A is O, S or NR1 wherein R1 is H or an alkyl of 1 to about 4 carbon atoms, and Q is alkylene of 1 to about 15 carbon atoms, hydroxyalkylene of 3 to about 15 carbon atoms, —
(CnH2n)(OCqH2q)m—
, —
SO2—
NR1(CnH2n)—
, or —
CONR1(CnH2n)—
, wherein R1 is H or alkyl of 1 to about 4 carbon atoms, n is 1 to about 15, q is 2 to about 4, and m is 1 to about 15; and
R is hydrogen or a C1 to about C2 alkyl group, (b) from about 1% to about 50% of a monomer of formula 2B
(CH2═
C(R7)COW(CH2)r+NR2R3R4)Y−
2B wherein R7 is H or an aliphatic group containing 1 to about 4 carbon atoms, R2 and R3 are each independently alkyl of 1 to about 4 carbon atoms, hydroxyethyl, or benzyl or R2 and R3 together with the nitrogen atom form a morpholine, pyrrolidine, or piperidine ring, R4 is H or alkyl of 1 to about 4 carbon atoms or R2, R3, and R4 together with the nitrogen form a piperidine ring, W is —
O—
or —
NR4—
r is 2 to 4, and Y−
is an anion, provided that the nitrogen is from about 40% to 100% quaternized; and
(c) from 0% to about 20% of an anionic monomer or a monomer which is potentially anionic by varying the pH;
(d) from about 0% to about 10% of a vinyl derivative of formula 2C
R8—
CH═
CH2
2C wherein R8 is an alkyl carboxylate or alkyl ether group containing from 1 to about 18 carbon atoms; and
(e) from 0 to about 25% of at least one monomer of formula 2D
CH2═
C(R9)—
C(O)—
O—
V—
OH
2D wherein R9 is H or an alkyl of 1 to about 4 carbon atoms, and V is an alkylene of from about 2 to about 4 carbon atoms; and
(f) from 0 to about 30% of any monomer other than the monomers of components (a) to (e) described above;
provided that the weight percents for components (a) to (f) described above total 100%.
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Abstract
A composition comprising a mixture, having a maximum molar ratio of acid to base of 0.6 and providing water repellency when applied to a substrate surface without etching of said surface, of A) an anionic aqueous fluoroalkyl phosphate solution which provides at least about 75% of the total fluorine content of said composition, and B) a cationic copolymer of fluoroalkyl(meth)acrylate or perfluoroalkylether(meth)acrylate present at a minimum of 0.3 g per 100 g of said composition.
-
Citations
20 Claims
-
1. A composition comprising an aqueous first mixture, having a maximum molar ratio of acid to base of 0.6 and providing water repellency when applied to a substrate surface without etching of said surface, of
A. an anionic aqueous fluoroalkyl phosphate solution which provides at least about 75% of the total fluorine content of said first mixture comprising a second mixture of mono(perfluoroalkyl) phosphate and bis(perfluoroalkyl) phosphate of Formula IA,
[Rf—- (O)j]x—
P(O)—
O−
X+)(3-x)
Formula 1Awherein;
Rf is selected from the group consisting of F(CF2CF2)d(CH2)a—
,F(CF2CF2)dCH2CH2(OCH2CH2)b—
,F(CF2CF2)d—
,F(CF2CF2)dCH═
CH(CH2)c—
, andC8F17SO2N(R5)CH2CH2—
;
a is from about 2 to about 10, b is from about 3 to about 20, c is from about 2 to about 20, d is 1 to about 8, or a mixture thereof, R5 is H or an aliphatic group containing 1 to about 4 carbon atoms, x is from about 1 to about 2, j is 1 or 0, or a mixture thereof, and X is hydrogen or M, M is an ammonium ion, an alkali metal ion, or an alkanolammonium ion, or 2) a phosphate of the structure of Formula IB wherein Rf′
is a fluoroaliphatic group having a linear or branched perfluorocarbon chain having from about 2 to about 20 carbon atoms,R6 is an alkylene group having from 1 to about 8 carbon atoms, Z is —
O—
, —
S—
, or —
NH—
, andM is as defined above in Formula IA, and B. a cationic fluoroalkyl(meth)acrylate or perfluoroalkylether (meth)acrylate copolymer present at a minimum of 0.3 g per 100 g of said first mixture, and comprising monomers copolymerized in the following percentages by weight;
(a) from about 40% to about 92% of at least one monomer of formula 2A
Rf′
-Q-A-C(O)—
C(R7)═
CH2
2Awherein;
Rf′
is a fluoroaliphatic group having a linear or branched perfluorocarbon chain having from about 2 to about 20 carbon atoms,R7 is H or an aliphatic group containing 1 to about 4 carbon atoms, A is O, S or NR1 wherein R1 is H or an alkyl of 1 to about 4 carbon atoms, and Q is alkylene of 1 to about 15 carbon atoms, hydroxyalkylene of 3 to about 15 carbon atoms, —
(CnH2n)(OCqH2q)m—
, —
SO2—
NR1(CnH2n)—
, or —
CONR1(CnH2n)—
, wherein R1 is H or alkyl of 1 to about 4 carbon atoms, n is 1 to about 15, q is 2 to about 4, and m is 1 to about 15; and
R is hydrogen or a C1 to about C2 alkyl group, (b) from about 1% to about 50% of a monomer of formula 2B
(CH2═
C(R7)COW(CH2)r+NR2R3R4)Y−
2Bwherein R7 is H or an aliphatic group containing 1 to about 4 carbon atoms, R2 and R3 are each independently alkyl of 1 to about 4 carbon atoms, hydroxyethyl, or benzyl or R2 and R3 together with the nitrogen atom form a morpholine, pyrrolidine, or piperidine ring, R4 is H or alkyl of 1 to about 4 carbon atoms or R2, R3, and R4 together with the nitrogen form a piperidine ring, W is —
O—
or —
NR4—r is 2 to 4, and Y−
is an anion, provided that the nitrogen is from about 40% to 100% quaternized; and
(c) from 0% to about 20% of an anionic monomer or a monomer which is potentially anionic by varying the pH;
(d) from about 0% to about 10% of a vinyl derivative of formula 2C
R8—
CH═
CH2
2Cwherein R8 is an alkyl carboxylate or alkyl ether group containing from 1 to about 18 carbon atoms; and
(e) from 0 to about 25% of at least one monomer of formula 2D
CH2═
C(R9)—
C(O)—
O—
V—
OH
2Dwherein R9 is H or an alkyl of 1 to about 4 carbon atoms, and V is an alkylene of from about 2 to about 4 carbon atoms; and
(f) from 0 to about 30% of any monomer other than the monomers of components (a) to (e) described above;
provided that the weight percents for components (a) to (f) described above total 100%. - View Dependent Claims (2, 3, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
- (O)j]x—
- 4. The composition of claim 4 wherein the copolymer of component B is a copolymer prepared by copolymerization of formula 2A and formula 2B.
Specification