US4163657A
Expired / Lapsed
US
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Soil conditioning composition and method of using same
Assignee: Koslow Batchelder Technology
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Filing: 1978-06-23
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Granted: 1979-08-07
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Expires: 1998-06-23
Abstract
Abstract A soil conditioning composition of extended useful life in soil comprises a substantially linear, substantially water-soluble hydrophilic polymer having a molecular weight greater than 50,000 and at least one functional group disposed along the polymer chain. The polymer chain comprises one or more polymer chain segments characterized by an absence of the functional group therein and a minimum length, the minimum length of the polymer chain segment being at least one micrometer when the polymer chain segment is secured to one of the functional groups only at one end thereof and at least two micrometers when the polymer chain segment is secured to a respective one of the functional groups at each end thereof. The functional group is more capable of attaching the polymer to a solid soil phase than is the polymer chain segment, whereby the polymer includes at least one portion adapted to secure the polymer to a solid soil phase and at least one portion adapted to extend into an aqueous soil phase.
Inventors
- 👤 Evan E. Koslow
- 👤 J. Samuel Batchelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 03:21
CPC Classifications
C; C09; C09K; C09K17/00; C09K17/14; C09K17/18; C09K17/32; Y; Y10; Y10S; Y10S71/00; Y10S71/903
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
177 words
A soil conditioning composition comprising a substantially linear, substantially water-soluble hydrophilic polymer having a molecular weight greater than 50,000 and at least one functional group disposed along the polymer chain, said polymer chain comprising one or more polymer chain segments characterized by an absence of said functional group therein and a minimum length, said minimum length of the polymer chain segment being at least one micrometer when said polymer chain segment is secured to one of said functional groups only at one end thereof and at least two micrometers when said polymer chain segment is secured to a respective one of said functional groups at each end thereof, said functional group or groups being more capable of attaching said polymer to a solid soil phase than is said polymer chain segment and at least one of said functional groups being attached to the solid soil phase; whereby said polymer includes at least one portion adapted to secure said polymer to a solid soil phase and at least one portion adapted to extend into an aqueous soil phase.
Claim 2
Dependent Claim
177 words
A soil conditioning composition comprising a substantially linear, substantially water-soluble hydrophilic polymer having a molecular weight greater than 50,000 and at least one functional group disposed along the polymer chain, said polymer chain comprising one or more polymer chain segments characterized by an absence of said functional group therein and a minimum length, said minimum length of the polymer chain segment being at least one micrometer when said polymer chain segment is secured to one of said functional groups only at one end thereof and at least two micrometers when said polymer chain segment is secured to a respective one of said functional groups at each end thereof, said functional group or groups being more capable of attaching said polymer to a solid soil phase than is said polymer chain segment and at least one of said functional groups being attached to the solid soil phase; whereby said polymer includes at least one portion adapted to secure said polymer to a solid soil phase and at least one portion adapted to extend into an aqueous soil phase.
Claim 3
Dependent Claim
63 words
The composition of claim 1 wherein said polymer is selected from the group consisting of substituted cellulosics, substituted homopolymers of ethylene oxide, vinyl alcohol, vinylpyrrolidone, vinyl acetate, acrylic acid, oxyethylene lauryl ether, oxyethylene sorbitan mono-oleate, and acrylamide, and copolymers of ethylene oxide, vinyl alcohol, vinylpyrrolidone, vinyl acetate, acrylic acid, oxyethylene, lauryl ether, oxyethylene sorbitan mono-oleate, and acrylamide with one or more substituted comonomers.
Claim 4
Dependent Claim
13 words
The composition of claim 2 wherein said polymer is substituted poly (ethylene oxide).
Claim 5
Dependent Claim
12 words
The composition of claim 1 wherein said polymer is a substituted polyether.
Claim 6
Dependent Claim
31 words
The composition of any of claims 1-4 wherein said functional group is selected from the group consisting of hydrophobic groups amines, amides, quaternary ammonium salts, sulfides, bisulfides, halides, cyanides and phosphates.
Claim 7
Dependent Claim
11 words
The composition of claim 5 wherein said functional groups are halides.
Claim 8
Dependent Claim
18 words
The composition of any of claims 1-4 wherein said polymer chain segment has a length of 50-250 micrometers.
Claim 9
Dependent Claim
16 words
The composition of claim 5 wherein said polymer chain segment has a length of 50-250 micrometers.
Claim 10
Dependent Claim
28 words
The composition of any of claims 1-4 wherein said polymer chain includes a polymer chain segment secured at only one end thereof to one of said functional groups.
Claim 11
Dependent Claim
26 words
The composition of claim 5 wherein said polymer chain includes a polymer chain segment secured at only one end thereof to one of said functional groups.
Claim 12
Dependent Claim
26 words
The composition of claim 7 wherein said polymer chain includes a polymer chain segment secured at only one end thereof to one of said functional groups.
Claim 13
Dependent Claim
29 words
The composition of any of claims 1-4 wherein said polymer chain includes a polymer chain segment secured at each end thereof to a respective one of said functional groups.
Claim 14
Dependent Claim
27 words
The composition of claim 5 wherein said polymer chain includes a polymer chain segment secured at each end thereof to a respective one of said functional groups.
Claim 15
Dependent Claim
27 words
The composition of claim 7 wherein said polymer chain includes a polymer chain segment secured at each end thereof to a respective one of said functional groups.
Claim 16
Independent Claim
200 words
The method of retarding the loss of water from a water-permeable soil comrising the steps of: (A) contacting said soil with a soil conditioning composition comprising a substantially linear, substantially water-soluble hydrophilic polymer having a molecular weight greater than 50,000 and at least one functional group disposed along the polymer chain, said polymer chain comprising one or more polymer chain segments characterized by an absence of said functional groups therein and a minimum length, said minimum length of said polymer chain segment being at least one micrometer when said polymer chain segment is secured to one of said functional groups only at one end thereof and at least two micrometers when said polymer chain segment is secured to a respective one of said functional groups at each end thereof, said functional group being more capable of attaching said polymer to a solid soil phase than is said polymer chain segment; whereby said polymer includes at least one portion adapted to secure said polymer to a solid soil phase and at least one portion adapted to extend into an aqueous soil phase; and (B) thereafter irrigating said soil at periodic intervals as required to maintain the water content of said soil.
Claim 17
Independent Claim
200 words
The method of retarding the loss of water from a water-permeable soil comrising the steps of: (A) contacting said soil with a soil conditioning composition comprising a substantially linear, substantially water-soluble hydrophilic polymer having a molecular weight greater than 50,000 and at least one functional group disposed along the polymer chain, said polymer chain comprising one or more polymer chain segments characterized by an absence of said functional groups therein and a minimum length, said minimum length of said polymer chain segment being at least one micrometer when said polymer chain segment is secured to one of said functional groups only at one end thereof and at least two micrometers when said polymer chain segment is secured to a respective one of said functional groups at each end thereof, said functional group being more capable of attaching said polymer to a solid soil phase than is said polymer chain segment; whereby said polymer includes at least one portion adapted to secure said polymer to a solid soil phase and at least one portion adapted to extend into an aqueous soil phase; and (B) thereafter irrigating said soil at periodic intervals as required to maintain the water content of said soil.
Claim 18
Dependent Claim
25 words
The method of claim 15 wherein said soil is contacted with 5-2500 parts of said soil conditioning composition per million parts of soil by weight.
Claim 19
Dependent Claim
63 words
The method of claim 15 wherein said polymer is selected from the group consisting of substituted cellulosics, substituted homopolymers of ethylene oxide, vinyl alcohol, vinylpyrrolidone, vinyl acetate, acrylic acid, oxyeghylene lauryl ether, oxyethylene sorbitan mono-oleate, and acrylamide, and copolymers of ethylene oxide, vinyl alcohol, vinylpyrrolidone, vinyl acetate, acrylic acid, oxyethylene lauryl ether, oxyethylene sorbitan mono-oleate, and acrylamide with one or more substituted comonomers.
Claim 20
Dependent Claim
13 words
The method of claim 17 wherein said polymer is substituted poly (ethylene oxide).
Claim 21
Dependent Claim
12 words
The method of claim 15 wherein said polymer is a substituted polyether.
Claim 22
Independent Claim
31 words
The method of any of claims 15-19 wherein said functional group is selected from the group consisting of hydrophobic groups amines, amides, quaternary ammonium salts, sulfides, bisulfides, halides, cyanides and phosphates.
Claim 23
Dependent Claim
11 words
The method of claim 20 wherein said functional groups are halides.
Claim 24
Independent Claim
18 words
The method of any of claims 15-19 wherein said polymer chain segment has a length of 50-250 micrometers.
Claim 25
Dependent Claim
16 words
The method of claim 20 wherein said polymer chain segment has a length of 50-250 micrometers.
Claim 26
Independent Claim
28 words
The method of any of claims 15-19 wherein said polymer chain includes a polymer chain segment secured at only one end thereof to one of said functional groups.
Claim 27
Dependent Claim
26 words
The method of claim 20 wherein said polymer chain includes a polymer chain segment secured at only one end thereof to one of said functional groups.
Claim 28
Dependent Claim
26 words
The method of claim 23 wherein said polymer chain includes a polymer chain segment secured at only one end thereof to one of said functional groups.
Claim 29
Independent Claim
28 words
The method of any of claims 15-19 wherein said polymer chain includes a chain segment secured at each end thereof to a respective one of said functional groups.
Claim 30
Dependent Claim
26 words
The method of claim 20 wherein said polymer chain includes a chain segment secured at each end thereof to a respective one of said functional groups.
Claim 31
Dependent Claim
26 words
The method of claim 23 wherein said polymer chain includes a chain segment secured at each end thereof to a respective one of said functional groups.
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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) | 1982-08-06 | 1983-02-05 | 1983-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-08-06 | 1987-02-05 | 1987-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-08-06 | 1991-02-05 | 1991-08-07 | $7700.00 | Window Closed / Lapsed |