US3872000A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid flocculant comprising condensation product of aromatic aldehyde and polyol
Assignee: E C Chemical Ind and Co Ltd
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Filing: 1973-04-09
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Granted: 1975-03-18
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Expires: 1993-04-09
Abstract
Abstract A filamentous liquid composition with improved flocculant characteristics which can be used in various industrial processes has been found which comprises a mixture consisting essentially of a condensation product of an aromatic aldehyde and a polyhydroxy alcohol containing at least four hydroxyl groups, a surfactant and a polar organic solvent which is uniformly dispersed in water.
Inventors
- 👤 Kenzo Hamada
- 👤 Hiroshi Uchiyama
- 👤 Jiro Sugi
- 👤 Osamu Kamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:38
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/52; C02F1/54; C02F1/5236; Y; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/917
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
82 words
A METHOD OF TREATING FLUID DRAINAGE, WHICH COMPRISES: FLOCCULATING SAID FLUID DRAINAGE WITH A FILAMENTOUS LIQUID COMPOSITION CONSISTING ESSENTIALLY OF FROM 5 - 50 PARTS BY WEIGHT A CONDENSATION PRODUCT OF AN AROMATIC ALDEHYDE AND A POLYHYDROXY ALCOHOL CONTAINING AT LEAST FOUR HYDROXYL GROUPS, 15 - 50 PARTS BY WEIGHT OF A SURFACTANT AND 15 - 50 PARTS BY WEIGHT OF A POLAR ORGANIC SOLVENT, ALL OF WHICH ARE UNIFORMLY DISPERSED IN WATER, SUCH THAT CONTAMINANTS ARE REMOVED FROM SAID WASTE FLUID.
Claim 2
Independent Claim
82 words
A METHOD OF TREATING FLUID DRAINAGE, WHICH COMPRISES: FLOCCULATING SAID FLUID DRAINAGE WITH A FILAMENTOUS LIQUID COMPOSITION CONSISTING ESSENTIALLY OF FROM 5 - 50 PARTS BY WEIGHT A CONDENSATION PRODUCT OF AN AROMATIC ALDEHYDE AND A POLYHYDROXY ALCOHOL CONTAINING AT LEAST FOUR HYDROXYL GROUPS, 15 - 50 PARTS BY WEIGHT OF A SURFACTANT AND 15 - 50 PARTS BY WEIGHT OF A POLAR ORGANIC SOLVENT, ALL OF WHICH ARE UNIFORMLY DISPERSED IN WATER, SUCH THAT CONTAMINANTS ARE REMOVED FROM SAID WASTE FLUID.
Claim 3
Dependent Claim
27 words
The method of claim 1, wherein said fluid drainage is food industry drainage or dye bath drainage, or an emulsion drainage containing mineral oil or cutting oil.
Claim 4
Dependent Claim
65 words
A filamentous liquid composition, which comprises: a mixture consisting essentially of 5 - 50 parts by weight of a condensation product of an aromatic aldehyde and a polyhydroxy alcohol containing at least four hydroxyl groups, from 15 - 50 parts by weight of a surfactant and 15 - 50 parts by weight of a polar organic solvent, all of which are uniformly dispersed in water.
Claim 5
Dependent Claim
65 words
A filamentous liquid composition, which comprises: a mixture consisting essentially of 5 - 50 parts by weight of a condensation product of an aromatic aldehyde and a polyhydroxy alcohol containing at least four hydroxyl groups, from 15 - 50 parts by weight of a surfactant and 15 - 50 parts by weight of a polar organic solvent, all of which are uniformly dispersed in water.
Claim 6
Dependent Claim
25 words
The filamentous liquid composition of claim 3, wherein said aromatic aldehyde is selected from the group consisting of benzaldehyde, substituted benzaldehydes, phenylalkanals and phenylalkenyl aldehydes.
Claim 7
Dependent Claim
21 words
The filamentous liquid composition of claim 4, wherein said aromatic aldehyde is benzaldehyde, alkylbenzaldehydes, alkoxybenzaldehydes, hydroxybenzaldehyde, halogenated benzaldehydes, phenylacetaldehyde or cinnamaldehyde.
Claim 8
Dependent Claim
27 words
The filamentous liquid composition of claim 3, wherein said aromatic aldehyde is selected from the group consisting of benzaldehyde, tolualdehyde, cuminealdehyde, methoxybenzaldehyde, piperonal, chlorobenzaldehyde, p-hydroxy-m-methoxybenzaldehyde and cinnamaldehyde.
Claim 9
Dependent Claim
25 words
The filamentous liquid composition of claim 3, wherein said polyhydroxy alcohol is at least one member selected from the group consisting of pentitol and hexitol.
Claim 10
Dependent Claim
19 words
The filamentous liquid composition of claiam 7, wherein said pentitol is xylitol and said hexitol is sorbitol or mannitol.
Claim 11
Dependent Claim
19 words
The filamentous liquid composition of claiam 7, wherein said pentitol is xylitol and said hexitol is sorbitol or mannitol.
Claim 12
Dependent Claim
31 words
The filamentous liquid composition of claim 3, wherein the molar ratio of said aromatic aldehyde to said polyhydroxy alcohol in said condensation product is in the range of 0.5 - 3.
Claim 13
Dependent Claim
19 words
The filamentous liquid composition of claim 9, wherein the molar ratio is in a range of 1 - 25.
Claim 14
Dependent Claim
134 words
The filamentous liquid composition of claim 3, wherein said surfactant is at least one member selected from the group consisting of sodium alkylsulfates, sodium amide sulfate, sodium glycolether sulfates, sodium alkylsulfonates, sodium alkylarylsulfonates, sodium amide sulfonate, sodium alkyl phosphates, sodium alkyl polyoxyethylene phosphates, sodium alkyl polyoxyethylene phosphates, sodium alkyl phosphonates, sodium alkyl polyoxyethylene phosphonates, sodium dialkyl sulfosuccinates, quaternary ammonium chlorides having at least one higher substituent which is selected from the group consisting of higher alkyl, higher alkenyl, aryl and polyoxyethylene, higher alkyl pyridinium halides, alkoxy methyl pyridinium halides, 1-oxyethyl-2-alkyl or alkenyl substituted imidazoline salts, polyoxyethylene alkyl ethers, polyoxyethylene alkylaryl ethers, polyethylene glycol fatty acid esters and an amphoteric surfactant containing amino or quaternary ammonium moieties as the cationically active group and a carboxylic acid, sulfonate or sulfate moiety as the anionically active group.
Claim 15
Dependent Claim
39 words
The filamentous liquid composition of claim 3, wherein said polar organic solvent is at least one member selected from the group consisting of N-alkylamides, alkyl sulfoxides, mono- and dialkyl ethers of ethyleneglycols and their derivatives, nitriles, alcohols and ketones.
Claim 16
Dependent Claim
30 words
The filamentous liquid composition of claim 3, wherein the total weight of said condensation product and said surfactant in the composition is in the range of 0.01 - 10 percent.
Claim 17
Dependent Claim
15 words
The filamentous liquid composition of claim 13, wherein said range is 1 - 5 percent.
Claim 18
Dependent Claim
13 words
The filamentous liquid composition of claim 3, wherein said mixture contains boric acid.
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) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |