Patent US4439561A successfully refreshed from Google Patents.
US4439561A
Expired / Lapsed
US
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Sealant composition and method
Assignee: Prestone Products Corp USA
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Filing: 1982-03-24
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Granted: 1984-03-27
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Expires: 2002-03-24
Abstract
Abstract Disclosed is a composition for stopping leaks which comprises the combination of a fibrillated fiber and a particulate material, such as a seed meal, in a suspension in a liquid medium. A preferred fibrillated fiber comprises the polymer, poly(imino-1,4-phenyleneiminoterephthaloyl).
Inventors
- 👤 Alan G. Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:47
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/12; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S525/00; Y10S525/935
Claims Analysis
Total Claims: 48
Claim 1
Independent Claim
55 words
A composition for the stopping of liquid leaks in heat exchange systems which comprises a suspension in a liquid medium of: (a) particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) fibrillated fiber coacting with the particulate material to seal the leak by an entwining action.
Claim 2
Dependent Claim
55 words
A composition for the stopping of liquid leaks in heat exchange systems which comprises a suspension in a liquid medium of: (a) particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) fibrillated fiber coacting with the particulate material to seal the leak by an entwining action.
Claim 3
Dependent Claim
83 words
A composition for the stopping of liquid leaks in heat exchange systems which comprises a suspension in a liquid medium of: (a) a particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) a fibrillated fiber coacting with the particulate material to seal the leak by an entwining action, the fibrillated fiber having a length of about 1 mm to about 7 mm and a surface area greater than about 1 square meter per gram.
Claim 4
Dependent Claim
83 words
A composition for the stopping of liquid leaks in heat exchange systems which comprises a suspension in a liquid medium of: (a) a particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) a fibrillated fiber coacting with the particulate material to seal the leak by an entwining action, the fibrillated fiber having a length of about 1 mm to about 7 mm and a surface area greater than about 1 square meter per gram.
Claim 5
Dependent Claim
105 words
The composition of claim 1 or 2 wherein the fibrillated fiber comprises a polymer consisting essentially of the recurring units selected from the group: ##STR7## with the proviso that ##STR8## are present in the polymer in substantially equimolar amounts, and wherein R, R' and R", which may the same or different, are divalent radicals, n may be zero or the integer one, and wherein the R, R', and R" radicals in the polymer are saturated or unsaturated aliphatic or ring aliphatic radicals containing 1 to 10 carbon atoms or single or fused multringed carbocyclic or heterocyclic aromatic ringed radicals or a series of such radicals.
Claim 6
Dependent Claim
37 words
The composition of claim 3 wherein the R, R', and R" radicals in the polymer are single rigid radicals with extended bonds or a series of such rigid radicals which are linked together directly by extended bonds.
Claim 7
Dependent Claim
49 words
The composition of claim 3 wherein n is the integer one and wherein R, and R' are selected from the group 1,4-phenylene, 4,4'-biphenylene, 2,6-naphthylene, 2,5-pyridene, trans-vinylene and trans-1,4-cyclohexylene and R" is 1,4-phenylene with the proviso that at least 50 mole percent of either R or R' radicals are 1,4-phenylene.
Claim 8
Dependent Claim
15 words
The composition of claim 3 wherein the polymer consists essentially of the repeating unit ##STR9##
Claim 9
Dependent Claim
15 words
The composition of claim 1 or 2 wherein the particulate material is a seed meal.
Claim 10
Dependent Claim
12 words
The composition of claim 7 wherein the seed meal is soybean meal.
Claim 11
Dependent Claim
18 words
The composition of claim 1 or 2 having at least one corrosion inhibitor in an inhibitory effective amount.
Claim 12
Independent Claim
57 words
A method for the plugging of liquid leaks in heat exchange systems which comprises forming a suspension in an amount and of a size sufficient to become entrained in the leak and a fibrillated fiber coating with the particulate material to seal the leak by an entwining action; and placing the liquid suspension in the leaky container.
Claim 13
Independent Claim
57 words
A method for the plugging of liquid leaks in heat exchange systems which comprises forming a suspension in an amount and of a size sufficient to become entrained in the leak and a fibrillated fiber coating with the particulate material to seal the leak by an entwining action; and placing the liquid suspension in the leaky container.
Claim 14
Independent Claim
93 words
A method for the plugging of leaks which comprises: (a) forming a suspension in a liquid medium by dispersing in the liquid medium a particulate material in an about and of a size sufficient to become entrained in the leak, and a fibrillated fiber coacting with the particulate material to seal the leak by an entwining action, the fibrillated fiber having a length of about 1 mm to about 7 mm and a surface area greater than about 1 square meter per gram, and (b) placing the suspension in a heat exchange system.
Claim 15
Independent Claim
93 words
A method for the plugging of leaks which comprises: (a) forming a suspension in a liquid medium by dispersing in the liquid medium a particulate material in an about and of a size sufficient to become entrained in the leak, and a fibrillated fiber coacting with the particulate material to seal the leak by an entwining action, the fibrillated fiber having a length of about 1 mm to about 7 mm and a surface area greater than about 1 square meter per gram, and (b) placing the suspension in a heat exchange system.
Claim 16
Dependent Claim
104 words
The method of claim 10 or 11 wherein the fibrillated fiber comprises a polymer consisting essentially of any of the recurring units selected from the group; ##STR10## with the proviso that ##STR11## are present in the polymer in substantially equimolar amounts, R, R' and R", which may the same or different, are divalent radicals, n may be zero or the integer one, and wherein the R, R', and R" radicals in the polymer are saturated or unsaturated aliphatic or ringed aliphatic radicals containing 1 to 10 carbon atoms, or single or fused multiringed carboycyclic or heterocyclic aromatic radicals or a series of such radicals.
Claim 17
Dependent Claim
37 words
The method of claim 12 wherein the R, R, and R" radicals in the polymer are single rigid radicals with extended bonds or a series of such rigids radicals which are linked together directly by extended bonds.
Claim 18
Dependent Claim
49 words
The method of claim 12 wherein n is the integer one and wherein R, and R' are selected from the group 1,4-phenylene, 4,4'-biphenylene, 2,6-naphthylene, 2,5-pyridene, trans-vinylene and trans-1,4-cyclohexylene and R" is 1,4-phenylene with the proviso that at least 50 mole percent of either R or R' radicals are 1,4-phenylene.
Claim 19
Dependent Claim
15 words
The method of claim 12 wherein the polymer consists essentially of the repeating unit, ##STR12##
Claim 20
Dependent Claim
15 words
The method of claim 10 or 11 wherein the particulate material is a seed meal.
Claim 21
Dependent Claim
12 words
The method of claim 16 wherein the seed meal is soybean meal.
Claim 22
Dependent Claim
21 words
The method of claim 10 or 11 wherein the suspension has at least one corrosion inhibitor in an inhibitory effective amount.
Claim 23
Independent Claim
62 words
A method for making a composition for the stopping of liquid leaks in heat exchange systems which comprises suspending in a liquid medium (a) particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) fibrillated fiber in an amount which will coact with the particulate material to seal the leak by an entwining action.
Claim 24
Independent Claim
62 words
A method for making a composition for the stopping of liquid leaks in heat exchange systems which comprises suspending in a liquid medium (a) particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) fibrillated fiber in an amount which will coact with the particulate material to seal the leak by an entwining action.
Claim 25
Independent Claim
87 words
A method for making a composition for the stopping of liquid leaks in heat exchange systems which comprises a suspension in a liquid medium of: (a) a particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) a fibrillated fiber coacting with the particulate material to seal the leak by an entwining action, the fibrillated fiber having a length of about 1 mm to about 7 mm and a surface area greater than about 1 square meter per gram.
Claim 26
Independent Claim
87 words
A method for making a composition for the stopping of liquid leaks in heat exchange systems which comprises a suspension in a liquid medium of: (a) a particulate material in an amount and of a size sufficient to become entrained in the leak, and (b) a fibrillated fiber coacting with the particulate material to seal the leak by an entwining action, the fibrillated fiber having a length of about 1 mm to about 7 mm and a surface area greater than about 1 square meter per gram.
Claim 27
Dependent Claim
103 words
The method of claim 19 or 20 wherein the fibrillated fiber comprises a polymer consisting essentially of any of the recurring units selected from the group: ##STR13## wherein ##STR14## are present in the polymer in substantially equimolar amounts, R, R' and R", which may the same or different, are divalent radicals, n may be zero or the integer one, and wherein the R, R', and R" radicals in the polymer are saturated or unsaturated aliphatic or ringed aliphatic radicals containing 1 to 10 carbon atoms or single ringed or fused multiringed carboncyclic aromatic radicals, or a series of such aliphatic or aromatic radicals.
Claim 28
Dependent Claim
37 words
The method of claim 21 wherein the R, R', and R" radicals in the polymer are single rigid radicals with extended bonds or a series of such rigid radicals which are linked together directly by extended bonds.
Claim 29
Dependent Claim
49 words
The method of claim 21 wherein n is the integer one and wherein R, and R' are selected from the group 1,4-phenylene, 4,4'-biphenylene, 2,6-naphthylene, 2,5-pyridene, trans-vinylene and trans-1,4═cyclohexylene and R" is 1,4-phenylene with the proviso that at least 50 mole percent of either R or R' radicals are 1,4-phenylene.
Claim 30
Dependent Claim
15 words
The method of claim 21 wherein the polymer consists essentially of the repeating unit, ##STR15##
Claim 31
Dependent Claim
15 words
The method of claim 19 or 20 wherein the particulate material is a seed meal.
Claim 32
Dependent Claim
12 words
The method of claim 25 wherein the seed meal is soybean meal.
Claim 33
Dependent Claim
21 words
The composition of claim 1 having a weight ratio of fibrillated fiber to particulate material of about 1:20 to about 20:1.
Claim 34
Dependent Claim
22 words
The composition of claim 27 wherein the weight ratio of fibrillated fiber to particulate material is from about 1:5 to about 1:15.
Claim 35
Dependent Claim
18 words
The composition of claim 28 wherein the weight ratio of fibrillated fiber to particulate material is about 1:10.
Claim 36
Dependent Claim
22 words
The method of claim 19 or 20 wherein the liquid medium contains at least one corrosion inhibitor in an inhibitory effective amount.
Claim 37
Dependent Claim
15 words
The composition of claim 1 wherein the liquid medium comprises a monohydric or polyhydric alcohol.
Claim 38
Dependent Claim
12 words
The composition of claim 31 wherein the liquid medium comprises ethylene glycol.
Claim 39
Dependent Claim
16 words
The composition of claim 31 having at least one corrosion inhibitor in a inhibitory effective amount.
Claim 40
Dependent Claim
11 words
The composition of claim 1 wherein the liquid medium comprises water.
Claim 41
Dependent Claim
15 words
The method of claim 10 wherein the liquid medium comprises a monohydric or polyhydric alcohol.
Claim 42
Dependent Claim
12 words
The method of claim 35 wherein the liquid medium comprises ethylene glycol.
Claim 43
Dependent Claim
19 words
The method of claim 35 wherein the suspension contains at least one corrosion inhibitor in a inhibitory effective amount.
Claim 44
Dependent Claim
11 words
The method of claim 10 wherein the liquid medium comprises water.
Claim 45
Dependent Claim
15 words
The method of claim 19 wherein the liquid medium comprises a monohydric or polyhydric alcohol.
Claim 46
Dependent Claim
12 words
The method of claim 39 wherein the liquid medium comprises ethylene glycol.
Claim 47
Dependent Claim
19 words
The method of claim 39 wherein the suspension contains at least one corrosion inhibitor in a inhibitory effective amount.
Claim 48
Dependent Claim
11 words
The method of claim 19 wherein the liquid medium comprises water.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-27 | 1987-09-26 | 1988-03-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-27 | 1991-09-26 | 1992-03-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-27 | 1995-09-26 | 1996-03-27 | $7700.00 | Window Closed / Lapsed |