US4344860A
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Stabilization of silicates using salts of substituted nitrogen or sulfur containing siliconates
Assignee: Dow Silicones Corp
•
Filing: 1981-03-30
•
Granted: 1982-08-17
•
Expires: 2001-03-30
Abstract
Abstract Salts of substituted nitrogen or sulfur containing siliconates are effective stabilizers for aqueous silicates in such applications as treating boiler water, geothermal water and other aqueous silicates. They are also useful in antifreeze and coolant solutions.
Inventors
- 👤 Edwin P. Plueddemann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:11
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C01; C01B; C01B33/00; C01B33/20; C01B33/32; C01B33/325; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0836; C07F7/18; C07F7/1804; C11; C11D; C11D3/00; C11D3/0005; C11D3/0073; C11D3/02; C11D3/04; C11D3/08; C11D3/16; C11D3/162
Claims Analysis
Total Claims: 116
Claim 1
Independent Claim
260 words
A method of stabilizing soluble silicates comprising adding to the soluble silicates a siliconate selected from a group consisting essentially of (I) a siliconate having the general formula ##STR56## and (II) a siliconate having the general formula ##STR57## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR58## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR59## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR60## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2 wherein R' is selected from a group consisting of ##STR61## when p is 1 and q is 1 and R' is selected from a group consisting of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR62## when p is 0 and q is 2, wherein M and z have the same meaning as set forth above.
Claim 2
Independent Claim
260 words
A method of stabilizing soluble silicates comprising adding to the soluble silicates a siliconate selected from a group consisting essentially of (I) a siliconate having the general formula ##STR56## and (II) a siliconate having the general formula ##STR57## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR58## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR59## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR60## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2 wherein R' is selected from a group consisting of ##STR61## when p is 1 and q is 1 and R' is selected from a group consisting of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR62## when p is 0 and q is 2, wherein M and z have the same meaning as set forth above.
Claim 3
Dependent Claim
14 words
A method as claimed in claim 1 wherein the siliconate has the formula ##STR63##
Claim 4
Dependent Claim
17 words
A method as claimed in claim 2 wherein M is an alkali metal and z is 2.
Claim 5
Dependent Claim
17 words
A method as claimed in claim 3 wherein M is an alkali metal and z is 3.
Claim 6
Dependent Claim
13 words
A method as claimed in claim 3 wherein the alkali metal is sodium.
Claim 7
Dependent Claim
13 words
A method as claimed in claim 3 wherein the alkali metal is potassium.
Claim 8
Dependent Claim
13 words
A method as claimed in claim 4 wherein the alkali metal is sodium.
Claim 9
Dependent Claim
13 words
A method as claimed in claim 4 wherein the alkali metal is potassium.
Claim 10
Dependent Claim
13 words
A method as claimed in claim 2 wherein M is a tetraorganoammonium radical.
Claim 11
Dependent Claim
15 words
A method as claimed in claim 9 wherein the tetraorganoammonium radical is a tetraalkylammonium radical.
Claim 12
Dependent Claim
13 words
The method as claimed in claim 10 wherein the tetraalkylammonium radical is tetramethylammonium.
Claim 13
Dependent Claim
14 words
A method as claimed in claim 1 wherein the siliconate has the formula ##STR64##
Claim 14
Dependent Claim
17 words
A method as claimed in claim 12 wherein M is an alkali metal and z is 2.
Claim 15
Dependent Claim
17 words
A method as claimed in claim 12 wherein M is an alkali metal and z is 3.
Claim 16
Dependent Claim
13 words
A method as claimed in claim 13 wherein the alkali metal is sodium.
Claim 17
Dependent Claim
13 words
A method as claimed in claim 13 wherein the alkali metal is potassium.
Claim 18
Dependent Claim
13 words
A method as claimed in claim 14 wherein the alkali metal is sodium.
Claim 19
Dependent Claim
13 words
A method as claimed in claim 14 wherein the alkali metal is potassium.
Claim 20
Dependent Claim
13 words
A method as claimed in claim 12 wherein M is a tetraorganoammonium radical.
Claim 21
Dependent Claim
15 words
A method as claimed in claim 19 wherein the tetraorganoammonium radical is a tetraalkylammonium radical.
Claim 22
Dependent Claim
13 words
A method as claimed in claim 20 wherein the tetraalkylammonium radical is tetramethylammonium.
Claim 23
Dependent Claim
14 words
A method as claimed in claim 1 wherein M in each case is sodium.
Claim 24
Dependent Claim
14 words
A method as claimed in claim 1 wherein M in each case is potassium.
Claim 25
Dependent Claim
16 words
A method as claimed in claim 1 wherein M in each case is a tetraalkylammonium cation.
Claim 26
Dependent Claim
15 words
A method as claimed in claim 24 wherein the tetraalkylammonium cation is a tetra(methyl)ammonium cation.
Claim 27
Dependent Claim
236 words
An alcohol composition comprising a combination of (A) an alcohol; (B) a corrosion inhibiting amount of a composition which is selected from a group consisting of (I) a siliconate having the general formula ##STR65## and (II) a siliconate having the general formula ##STR66## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR67## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR68## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR69## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2, and (C) a soluble silicate represented by the general formula ##EQU3## wherein M has the meaning above and a has a value of 1-3 and (D) water.
Claim 28
Dependent Claim
236 words
An alcohol composition comprising a combination of (A) an alcohol; (B) a corrosion inhibiting amount of a composition which is selected from a group consisting of (I) a siliconate having the general formula ##STR65## and (II) a siliconate having the general formula ##STR66## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR67## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR68## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR69## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2, and (C) a soluble silicate represented by the general formula ##EQU3## wherein M has the meaning above and a has a value of 1-3 and (D) water.
Claim 29
Dependent Claim
48 words
An aqueous alcohol composition as claimed in claim 26 comprising (A) 85 to 98 percent by weight of alkylene glycol, (B) 0.01 to 0.5 percent by weight of a siliconate, (C) 0.025 to 1.0 percent by weight of an alkali metal silicate, and (D) the remainder being water.
Claim 30
Dependent Claim
16 words
An aqueous alcohol composition as claimed in claim 27 wherein the siliconate has the formula ##STR70##
Claim 31
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 28 wherein M is an alkali metal.
Claim 32
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 29 wherein the alkali metal is sodium.
Claim 33
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 29 wherein the alkali metal is potassium.
Claim 34
Dependent Claim
21 words
A composition as claimed in claim 30 wherein the siliconate is NaOOCH 2 SCH 2 CH 2 SiO 1 .5 (Na).
Claim 35
Dependent Claim
12 words
A composition as claimed in claim 30 wherein the siliconate is ##STR71##
Claim 36
Dependent Claim
12 words
A composition as claimed in claim 30 wherein the siliconate is ##STR72##
Claim 37
Dependent Claim
12 words
A composition as claimed in claim 30 wherein the siliconate is ##STR73##
Claim 38
Dependent Claim
12 words
A composition as claimed in claim 30 wherein the siliconate is ##STR74##
Claim 39
Dependent Claim
19 words
A composition as claimed in 31 wherein the siliconate is KOOCCH 2 SCH 2 CHhd 2SiO 1 .5 (K).
Claim 40
Dependent Claim
12 words
A composition as claimed in claim 31 wherein the siliconate is ##STR75##
Claim 41
Dependent Claim
12 words
A composition as claimed in claim 31 wherein the siliconate is ##STR76##
Claim 42
Dependent Claim
12 words
A composition as claimed in claim 31 wherein the siliconate is ##STR77##
Claim 43
Dependent Claim
12 words
A composition as claimed in claim 31 wherein the siliconate is ##STR78##
Claim 44
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 28 wherein M is a tetraorganoammonium radical.
Claim 45
Dependent Claim
17 words
An aqueous alcohol composition as claimed in claim 42 wherein the tetraorganoammonium radical is a tetraalkylammonium radical.
Claim 46
Dependent Claim
19 words
An aqueous alcohol composition as claimed in claim 43 wherein the tetraalkylammonium radical is tetramethylammonium and M is sodium.
Claim 47
Dependent Claim
19 words
An aqueous alcohol composition as claimed in claim 43 wherein the tetraalkylammonium radical is tetramethylammonium and M is potassium.
Claim 48
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 28 wherein component (A) is ethylene glycol.
Claim 49
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 29 wherein component (A) is ethylene glycol.
Claim 50
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 30 wherein component (A) is ethylene glycol.
Claim 51
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 31 wherein component (A) is ethylene glycol.
Claim 52
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 28 wherein component (A) is propylene glycol.
Claim 53
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 29 wherein component (A) is propylene glycol.
Claim 54
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 30 wherein component (A) is propylene glycol.
Claim 55
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 31 wherein component (A) is propylene glycol.
Claim 56
Dependent Claim
16 words
An aqueous alcohol composition as claimed in claim 27 wherein the siliconate has the formula ##STR79##
Claim 57
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 54 wherein M is an alkali metal.
Claim 58
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 55 wherein the alkali metal is sodium.
Claim 59
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 55 wherein the alkali metal is potassium.
Claim 60
Dependent Claim
23 words
A composition as claimed in claim 56 wherein the siliconate is (NaOOCCH 2 ) 2 N(CH 2 ) 3 SiO 1 .5 (Na).
Claim 61
Dependent Claim
12 words
A composition as claimed in claim 56 wherein the siliconate is ##STR80##
Claim 62
Dependent Claim
25 words
A composition as claimed in claim 56 wherein the siliconate is (NaOOCCH 2 CH 2 ) 2 N(CH 2 ) 3 SiO 1 .5 (Na).
Claim 63
Dependent Claim
27 words
A composition as claimed in claim 56 wherein the siliconate is (NaOOCCH 2 ) 2 N(CH 2 ) 2 NH(CH 2 ) 3 SiO 1 .5 (Na).
Claim 64
Dependent Claim
12 words
A composition as claimed in claim 56 wherein the siliconate is ##STR81##
Claim 65
Dependent Claim
29 words
A composition as claimed in claim 56 wherein the siliconate is (NaOOCH 2 CH 2 ) 2 NCH 2 CH 2 NH(CH 2 ) 3 SiO 1 .5 (Na).
Claim 66
Dependent Claim
12 words
A composition as claimed in claim 56 wherein the siliconate is ##STR82##
Claim 67
Dependent Claim
12 words
A composition as claimed in claim 56 wherein the siliconate is ##STR83##
Claim 68
Dependent Claim
23 words
A composition as claimed in claim 57 wherein the siliconate is (KOOCCH 2 ) 2 N(CH 2 ) 3 SiO 1 .5 (K).
Claim 69
Dependent Claim
21 words
A composition as claimed in claim 57 wherein the siliconate is KOOCCHCH 2 NH(CH 2 ) 3 SiO 1 .5 (K).
Claim 70
Dependent Claim
25 words
A composition as claimed in claim 57 wherein the siliconate is (KOOCCH 2 CH 2 ) 2 N(CH 2 ) 3 SiO 1 .5 K.
Claim 71
Dependent Claim
27 words
A composition as claimed in claim 57 wherein the siliconate is (KOOCCH 2 ) 2 N(CH 2 ) 2 NH(CH 2 ) 3 SiO 1 .5 K.
Claim 72
Dependent Claim
12 words
A composition as claimed in claim 57 wherein the siliconate is ##STR84##
Claim 73
Dependent Claim
29 words
A composition as claimed in claim 57 wherein the siliconate is (KOOCH 2 CH 2 ) 2 NCH 2 CH 2 NH(CH 2 ) 3 SiO 1 .5 (K).
Claim 74
Dependent Claim
12 words
A composition as claimed in claim 57 wherein the siliconate is ##STR85##
Claim 75
Dependent Claim
12 words
A composition as claimed in claim 57 wherein the siliconate is ##STR86##
Claim 76
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 54 wherein M is a tetraorganoammonium radical.
Claim 77
Dependent Claim
17 words
An aqueous alcohol composition as claimed in claim 74 wherein the tetraorganoammonium radical is a tetraalkylammonium radical.
Claim 78
Dependent Claim
19 words
An aqueous alcohol composition as claimed in claim 75 wherein the tetraalkylammonium radical is tetramethylammonium and M is sodium.
Claim 79
Dependent Claim
19 words
An aqueous alcohol composition as claimed in claim 75 wherein the tetraalkylammonium radical is tetramethylammonium and M is potassium.
Claim 80
Dependent Claim
13 words
A composition as claimed in claim 54 wherein component (A) is ethylene glycol.
Claim 81
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 55 wherein component (A) is ethylene glycol.
Claim 82
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 56 wherein component (A) is ethylene glycol.
Claim 83
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 57 wherein component (A) is ethylene glycol.
Claim 84
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 54 wherein component (A) is propylene glycol.
Claim 85
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 55 wherein component (A) is propylene glycol.
Claim 86
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 56 wherein component (A) is propylene glycol.
Claim 87
Dependent Claim
15 words
An aqueous alcohol composition as claimed in claim 57 wherein component (A) is propylene glycol.
Claim 88
Independent Claim
267 words
A method of inhibiting metal corrosion in an aqueous medium by adding to the aqueous medium a composition consisting of a siliconate selected from a group consisting of (I) a siliconate having the general formula ##STR87## and (II) a siliconate having the general formula ##STR88## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR89## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR90## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR91## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2 wherein R' is selected from a group consisting of ##STR92## when p is 1 and q is 1 and R' is selected from a group consisting of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR93## when p is 0 and q is 2, wherein M and Z have the same meaning as set forth above.
Claim 89
Independent Claim
267 words
A method of inhibiting metal corrosion in an aqueous medium by adding to the aqueous medium a composition consisting of a siliconate selected from a group consisting of (I) a siliconate having the general formula ##STR87## and (II) a siliconate having the general formula ##STR88## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR89## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR90## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR91## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2 wherein R' is selected from a group consisting of ##STR92## when p is 1 and q is 1 and R' is selected from a group consisting of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR93## when p is 0 and q is 2, wherein M and Z have the same meaning as set forth above.
Claim 90
Dependent Claim
34 words
A method as claimed in claim 86 wherein there is also present a soluble silicate represented by the general formula ##EQU4## wherein M has the meaning above and a has a value of 1-3.
Claim 91
Dependent Claim
14 words
A method as claimed in claim 86 wherein the siliconate has the formula ##STR94##
Claim 92
Dependent Claim
16 words
A method as claimed in claim 88 wherein M in the siliconate is an alkali metal.
Claim 93
Dependent Claim
13 words
A method as claimed in claim 89 wherein the alkali metal is sodium.
Claim 94
Dependent Claim
12 words
A method as claimed in claim 90 wherein the siliconate is ##STR95##
Claim 95
Dependent Claim
13 words
A method as claimed in claim 89 wherein the alkali metal is potassium.
Claim 96
Dependent Claim
12 words
A composition as claimed in claim 92 wherein the siliconate is ##STR96##
Claim 97
Dependent Claim
14 words
A method as claimed in claim 86 wherein the siliconate has the formula ##STR97##
Claim 98
Dependent Claim
16 words
A method as claimed in claim 94 wherein M in the siliconate is an alkali metal.
Claim 99
Dependent Claim
13 words
A method as claimed in claim 95 wherein the alkali metal is sodium.
Claim 100
Dependent Claim
13 words
A method as claimed in claim 95 wherein the alkali metal is potassium.
Claim 101
Dependent Claim
12 words
A composition as claimed in claim 96 wherein the siliconate is ##STR98##
Claim 102
Dependent Claim
12 words
A composition as claimed in claim 97 wherein the siliconate is ##STR99##
Claim 103
Dependent Claim
233 words
A composition of matter comprising (A) 0.1 to 20 mole percent of a siliconate selected from a group consisting essentially of (I) a siliconate having the general formula ##STR100## (II) a siliconate having the general formula ##STR101## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR102## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR103## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR104## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2, and (B) 80 to 99.9 mole percent of a soluble silicate represented by the general formula ##EQU5## wherein M has the meaning above and a has a value of 1-3.
Claim 104
Dependent Claim
233 words
A composition of matter comprising (A) 0.1 to 20 mole percent of a siliconate selected from a group consisting essentially of (I) a siliconate having the general formula ##STR100## (II) a siliconate having the general formula ##STR101## wherein in both formulas, M is selected from a group consisting essentially of (i) alkali metal cations and (ii) tetraorganoammonium cations and z has a value of 2 or 3, wherein in formula (I), R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR102## and wherein in formula (II), n has a value of 0 or 1; m has a value of 1 or 2, the sum of n+m is 2 and R is selected from a group consisting essentially of --CH 2 COOM, --CH 2 CH 2 COOM, ##STR103## and --(CH 2 ) 2 N(CH 2 COOM) 2 when n is 0 and m is 2, and R is selected from a group consisting essentially of ##STR104## and (CH 2 ) z NH p R' q when n is 1 and m is 1, p has a value of 0 or 1, q has a value of 1 or 2 and the sum of p+q is 2, and (B) 80 to 99.9 mole percent of a soluble silicate represented by the general formula ##EQU5## wherein M has the meaning above and a has a value of 1-3.
Claim 105
Dependent Claim
16 words
A composition of matter as claimed in claim 100 wherein the siliconate has the formula ##STR105##
Claim 106
Dependent Claim
15 words
A composition of matter as claimed in claim 101 wherein M is an alkali metal.
Claim 107
Dependent Claim
15 words
A composition of matter as claimed in claim 102 wherein the alkali metal is sodium.
Claim 108
Dependent Claim
15 words
A composition of matter as claimed in claim 102 wherein the alkali metal is potassium.
Claim 109
Dependent Claim
12 words
A composition as claimed in claim 103 wherein the siliconate is ##STR106##
Claim 110
Dependent Claim
12 words
A composition as claimed in claim 104 wherein the siliconate is ##STR107##
Claim 111
Dependent Claim
14 words
A composition as claimed in claim 100 wherein the siliconate has the formula ##STR108##
Claim 112
Dependent Claim
16 words
A composition as claimed in claim 107 wherein M in the siliconate is an alkali metal.
Claim 113
Dependent Claim
13 words
A composition as claimed in claim 108 wherein the alkali metal is sodium.
Claim 114
Dependent Claim
13 words
A composition as claimed in claim 108 wherein the alkali metal is potassium.
Claim 115
Dependent Claim
12 words
A composition as claimed in claim 109 wherein the siliconate is ##STR109##
Claim 116
Dependent Claim
12 words
A composition as claimed in claim 110 wherein the siliconate is ##STR110##
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |