US4564464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hectorite based paint spray booth detackifying slurries and methods of use thereof
Assignee: Veolia WTS USA Inc
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Filing: 1984-12-27
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Granted: 1986-01-14
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Expires: 2004-12-27
Abstract
Abstract Paint spray booth detackifying and clarification compositions and methods are disclosed. The compositions are pumpable, hectorite clay containing slurries. In addition to hectorite, which has been proven as a most effective detackifying agent, the slurries include thinning agents such as water soluble aliphatic and/or alicyclic amines. Water conditioning agents, such as water soluble polyphosphates are also made part of the slurry formulation.
Inventors
- 👤 William L. Harpel
- 👤 Deborah L. Purnell
- 👤 Richard J. Pilny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:58
CPC Classifications
C; C09; C09K; C09K3/00; C02; C02F; C02F1/00; C02F1/52; C02F1/5236; C09D; C09D7/00; C09D7/71; Y; Y10; Y10S; Y10S210/00; Y10S210/93
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
98 words
A pumpable slurry for the detackification and clarification of paint spray booth wastes comprising, in combination, from about 99.9%-10% of a hectorite clay material, from about 0.1-20% of a thinning agent, wherein said thinning agent comprises a member or members selected from the group consisting of water soluble aliphatic and alicyclic amines, about 0-10% of a water soluble polyphosphate water conditioning agent, from about 0 -15% alumina, from 0- about 40% montmorillonite clay, and about 0-5% of an antifoam, and water, all of said percentages being based upon the total weight of the non-aqueous components of said slurry.
Claim 2
Dependent Claim
98 words
A pumpable slurry for the detackification and clarification of paint spray booth wastes comprising, in combination, from about 99.9%-10% of a hectorite clay material, from about 0.1-20% of a thinning agent, wherein said thinning agent comprises a member or members selected from the group consisting of water soluble aliphatic and alicyclic amines, about 0-10% of a water soluble polyphosphate water conditioning agent, from about 0 -15% alumina, from 0- about 40% montmorillonite clay, and about 0-5% of an antifoam, and water, all of said percentages being based upon the total weight of the non-aqueous components of said slurry.
Claim 3
Dependent Claim
26 words
A pumpable slurry as recited in claim 1 wherein said thinning agent comprises a member or members selected from the group consisting of isopropylamine and aminoethylpiperazine.
Claim 4
Dependent Claim
85 words
A slurry as recited in claim 1 wherein said hectorite is present in a percentage of about 52.0%, said thinning agent comprises about 0.5% aminoethylpiperazine and about 1.5% isopropylamine, said water soluble polyphosphate water conditioning agent comprises tetrapotassium pyrophosphate present in an amount of about 5.0%, said montmorillonite being present in an amount of about 39.0%, said antifoam comprising a polyoxyalkylene glycol present in an amount of about 2.0%, all of said percentages being based on the total weight of non-aqueous components of said slurry.
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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) | 1989-01-13 | 1989-07-15 | 1990-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-13 | 1993-07-15 | 1994-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-13 | 1997-07-15 | 1998-01-14 | $7700.00 | Window Closed / Lapsed |