US5360579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the absorption of pollutants
Assignee: Arkema France SA
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Filing: 1993-12-22
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Granted: 1994-11-01
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Expires: 2013-12-22
Abstract
Abstract A process for absorbing a water-soluble oil present as an aqueous emulsion in a cutting fluid which comprises contacting said cutting fluid with a composition containing at least one norborene polymer selected from polycyclo [2.2.1]-2-heptene or poly-5-methylbicyclo[2.2.1]-2-heptene, and at least one alkaline earth metal halide as an agent for breaking an aqueous emulsion of a water-soluble oil.
Inventors
- 👤 Daniel Duquenne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 20:50
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/32; C02; C02F; C02F1/00; C02F1/68; C02F1/681; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/923; Y10T; Y10T137/00; Y10T137/0318; Y10T137/0324; Y10T137/0329; Y10T137/0352
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
85 words
A process for absorbing a water-soluble oil present as an aqueous emulsion in a cutting fluid which comprises contacting said cutting fluid with a composition containing at least one norborene polymer selected from the group consisting of polycyclo [2.2.1]-2-heptene and poly-5-methylbicyclo [2.2.1]-2-heptene, and at least one alkaline earth metal halide as an agent for breaking an aqueous emulsion of water-soluble oil wherein said composition comprises from 5 to 250 parts by weight of said emulsion breaking agent per 100 parts by weight of norborene polymer.
Claim 2
Dependent Claim
85 words
A process for absorbing a water-soluble oil present as an aqueous emulsion in a cutting fluid which comprises contacting said cutting fluid with a composition containing at least one norborene polymer selected from the group consisting of polycyclo [2.2.1]-2-heptene and poly-5-methylbicyclo [2.2.1]-2-heptene, and at least one alkaline earth metal halide as an agent for breaking an aqueous emulsion of water-soluble oil wherein said composition comprises from 5 to 250 parts by weight of said emulsion breaking agent per 100 parts by weight of norborene polymer.
Claim 3
Dependent Claim
19 words
A process according to claim 1, wherein the composition further comprises at least one plasticizer for the norborene polymer.
Claim 4
Dependent Claim
32 words
A process according to claim 1, wherein the composition further comprises at least one metal stearate anticaking agent in a proportion ranging up to 5% by weight relative to the norborene polymer.
Claim 5
Dependent Claim
15 words
A process according to claim 1, wherein the composition further comprises at least one filler.
Claim 6
Dependent Claim
27 words
A process according to claim 1, wherein the composition further comprises an inorganic filler chosen from the group consisting of talc, silica, clay, alumina and fly ash.
Claim 7
Dependent Claim
28 words
A process according to claim 1, wherein the composition further comprises an organic filler chosen from the group consisting of fibrous cellulose, powdered cellulose, polyethylene, polypropylene and polystyrene.
Claim 8
Dependent Claim
50 words
A process according to claim 1, wherein the composition further comprises a plasticizer for the norborene polymer, said plasticizer being a relatively nonvolatile compound chosen from the group consisting of organic esters derived from aliphatic and alicyclic alcohols, aliphatic hydrocarbons, aromatic hydrocarbons, alkyl aromatic and naphthenic hydrocarbons and mixtures thereof.
Claim 9
Dependent Claim
33 words
A process according to claim 2, wherein the plasticizer is present in the composition in an amount from 5 to 50 parts by weight per 100 parts by weight of the norborene polymer.
Claim 10
Dependent Claim
27 words
Process according to claim 1, wherein the contact is brought about by passing the cutting fluid to be treated through a filter packed with the said composition.
Claim 11
Dependent Claim
39 words
Process according to claim 1, wherein the contact is brought about by pouring said composition into a storage vessel containing the cutting fluid and by stirring the latter so that the composition is dispersed homogeneously in the cutting fluid.
Claim 12
Dependent Claim
38 words
Process according to claim 10, wherein a proportion of composition employed relative to the cutting fluid is such that the quantity of polynorbornene represents from 10 to 100% of the quantity of oil present in the cutting fluid.
Claim 13
Dependent Claim
25 words
Process according to claim 11, wherein the quantity of polynorbornene represents from 20 to 45% of the quantity of oil present in the cutting fluid.
References Cited (Backward Citations)
US4011159A
Cited
US4058453A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-10-31 | 1998-05-02 | 1998-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-10-31 | 2002-05-02 | 2002-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-10-31 | 2006-05-02 | 2006-11-01 | $7700.00 | Window Closed / Lapsed |