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US4828730A
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US
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Alkali metal aluminum silicate containing metal working fluid compositions and processes for machining metal employing such compositions
Assignee: Milacron Inc
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Filing: 1987-11-23
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Granted: 1989-05-09
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Expires: 2007-11-23
Abstract
Abstract Use of crystalline alkali metal aluminium silicates of the zeolite type, having the formula (A2O)x . Al2O3 . (SiO2)y wherein A = alkali metal, x has a value of 0.7 - 1.5 and y has a value of 0.8 - 4 and having a particle size between 0.1 and 100 mu m as an additive in an aqueous metal working fluid composition.
Inventors
- 👤 Albertus M. H. Molmans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 17:22
CPC Classifications
C; C10; C10M; C10M173/00; C10M173/02; C10M125/00; C10M125/26; C10M2201/00; C10M2201/02; C10M2201/087; C10M2201/10; C10M2201/102; C10M2201/103; C10M2201/105; C10M2207/00; C10M2207/10; C10M2207/12; C10M2207/125; C10M2207/129; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/22; C10M2215/221; C10M2215/222; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2050/00; C10N2050/01
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
90 words
An aqueous metal working fluid composition comprising at least 80% by weight of water based on the total composition, organic lubricant and from 0.05 to 1% by weight, based on the total composition, of crystalline alkali metal aluminum silicate, of the zeolite type, having the general formula (A.sub.2 O).sub.x Al.sub.2 O.sub.3 (SiO.sub.2).sub.y wherein A is an alkali metal, x has a value of 0.7 to 1.5 and y has a value of 0.8 to 4, said silicate having a particle size in the range of from 0.1 to 100 μm.
Claim 2
Dependent Claim
90 words
An aqueous metal working fluid composition comprising at least 80% by weight of water based on the total composition, organic lubricant and from 0.05 to 1% by weight, based on the total composition, of crystalline alkali metal aluminum silicate, of the zeolite type, having the general formula (A.sub.2 O).sub.x Al.sub.2 O.sub.3 (SiO.sub.2).sub.y wherein A is an alkali metal, x has a value of 0.7 to 1.5 and y has a value of 0.8 to 4, said silicate having a particle size in the range of from 0.1 to 100 μm.
Claim 3
Dependent Claim
22 words
The composition according to claim 1 wherein the silicate has a particle size in the range of from 0.1 to 15 μm.
Claim 4
Dependent Claim
17 words
The composition according to claim 2 wherein the silicate has a particle size less than 10 μm.
Claim 5
Dependent Claim
27 words
The composition according to claim 1 wherein A is sodium, x has a value from 0.7 to 1.1 and y has a value from 1.3 to 2.4.
Claim 6
Dependent Claim
23 words
The composition according to claim 1 wherein the amount of water is from 90 to 99.5% by weight based on the total composition.
Claim 7
Dependent Claim
23 words
The composition according to claim 4 wherein the amount of water is from 90 to 99.5% by weight based on the total composition.
Claim 8
Dependent Claim
14 words
The composition according to claim 1 wherein the lubricant is a synthetic organic lubricant.
Claim 9
Dependent Claim
133 words
A process for machining metal parts comprising the steps of contacting the metal with a machining tool and applying a continuous stream of an aqueous metal working fluid composition in the area where the machining tool acts upon the metal part, characterized in that the aqueous metal working fluid comprises at least 80% by weight of water based upon the metal composition, organic lubricant and from 0.05 to 1% by weight, based on the total composition, of crystalline alkali metal aluminum silicate, of the zeolite type, having the general formula (A.sub.2 O).sub.x Al.sub.2 O.sub.3 (SiO.sub.2).sub.y wherein A is an alkali metal, x has a value from 0.7 to 1.5 and y has a value from 0.8 to 4, said silicate having a particle size in the range of from 0.1 to 100 μm.
Claim 10
Dependent Claim
133 words
A process for machining metal parts comprising the steps of contacting the metal with a machining tool and applying a continuous stream of an aqueous metal working fluid composition in the area where the machining tool acts upon the metal part, characterized in that the aqueous metal working fluid comprises at least 80% by weight of water based upon the metal composition, organic lubricant and from 0.05 to 1% by weight, based on the total composition, of crystalline alkali metal aluminum silicate, of the zeolite type, having the general formula (A.sub.2 O).sub.x Al.sub.2 O.sub.3 (SiO.sub.2).sub.y wherein A is an alkali metal, x has a value from 0.7 to 1.5 and y has a value from 0.8 to 4, said silicate having a particle size in the range of from 0.1 to 100 μm.
Claim 11
Dependent Claim
22 words
The process according to claim 8 wherein the silicate has a particle size in the range of from 0.1 to 15 μm.
Claim 12
Dependent Claim
18 words
The process according to claim 9 wherein the silicate has a particle size of less than 10 μm.
Claim 13
Dependent Claim
29 words
The process according to claim 8 wherein A is sodium, x has a value of from 0.7 to 1.1 and y has a value of from 1.3 to 2.4.
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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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |