US4590237A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Foam regulators containing paraffin hydrocarbons and hydrophobic silica
Assignee: Henkel AG and Co KGaA
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Filing: 1985-01-02
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Granted: 1986-05-20
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Expires: 2005-01-02
Abstract
Abstract Foam regulators particularly suitable for use in surfactant-containing compositions, comprising a mixture of paraffin hydrocarbons and hydrophobic silica, preferably admixed with a carrier.
Inventors
- 👤 Juan C. Wuhrmann
- 👤 Wolfgang Seiter
- 👤 Brigitte Giesen
- 👤 Edmund Schmadel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:46
CPC Classifications
C; C11; C11D; C11D3/00; C11D3/16; C11D3/18; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; C11D3/0005; C11D3/0026
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
111 words
A foam regulator composition for in surfactant-containing products, consisting essentially of a mixture of (a) microcrystalline paraffin wax having a solidification point of about 60° to 95° C., in an amount of about 5 to 60%; (b) hard paraffin having a solidification point of about 40° to 60° C., in an amount of about 15 to 60%; (c) soft paraffin having a solidification point of about 32° to 42° C., in an amount of about 1 to 50%; and (d) hydrophobic, finely divided silica, in an amount of about 3 to 18%; all percentages being by weight based on the total weight of the mixture, said composition being free from surfactants.
Claim 2
Dependent Claim
111 words
A foam regulator composition for in surfactant-containing products, consisting essentially of a mixture of (a) microcrystalline paraffin wax having a solidification point of about 60° to 95° C., in an amount of about 5 to 60%; (b) hard paraffin having a solidification point of about 40° to 60° C., in an amount of about 15 to 60%; (c) soft paraffin having a solidification point of about 32° to 42° C., in an amount of about 1 to 50%; and (d) hydrophobic, finely divided silica, in an amount of about 3 to 18%; all percentages being by weight based on the total weight of the mixture, said composition being free from surfactants.
Claim 3
Dependent Claim
31 words
The foam regulator of claim 1 wherein said component (a) has a solidifiction point of about 62° to 90° C. and is present in an amount of about 20 to 55%.
Claim 4
Dependent Claim
30 words
The foam regulator of claim 1 wherein component (a) has a solidification point of about 62° to 90° C. and is present in an amount of about 30 to 50%.
Claim 5
Dependent Claim
30 words
The foam regulator of claim 1 wherein component (b) has a solidification point of about 42° to 56° C. and is present in an amount of about 20 to 50%.
Claim 6
Dependent Claim
30 words
The foam regulator of claim 1 wherein component (b) has a solidification point of about 42° to 56° C. and is present in an amount of about 25 to 45%.
Claim 7
Dependent Claim
23 words
The foam regulator of claim 1 wherein component (a) and component (b) are together present in an amount of at least about 50%.
Claim 8
Dependent Claim
23 words
The foam regulator of claim 1 wherein component (a) and component (b) are together present in an amount of about 65 to 85%.
Claim 9
Dependent Claim
30 words
The foam regulator of claim 1 wherein component (c) has a solidification point of about 35° to 40° C. and is present in an amount of about 5 to 25%.
Claim 10
Dependent Claim
19 words
The foam regulator of claim 1 wherein component (d) is present in an amount of about 5 to 15%.
Claim 11
Dependent Claim
86 words
The foam regulator of claim 1 wherein component (a) has a solidification point of about 62° to 90° C. and is present in an amount of about 20 to 55%. (b) has a solidification point of about 42° to 56° C. and is present in an amount of about 20 to 50%. (c) has a solidification point of about 35° to 40° C. and is present in an amount of about 5 to 25%; and (d) is present in an amount of about 5 to 15%.
Claim 12
Dependent Claim
23 words
The foam regulator of claim 10 wherein component (a) and component (b) are together present in an amount of about 65 to 85%.
Claim 13
Dependent Claim
51 words
The foam regulator of claim 1 further admixed with an auxiliary component which is at least one alcohol of the formula ##STR2## wherein: R 1 and R 2 may be the same or different and each are C 4-16 -alkyl, the total number of carbon atoms being between 16 and 30.
Claim 14
Dependent Claim
16 words
The foam regulator of claim 12 wherein R 1 and R 2 are each straight chain.
Claim 15
Dependent Claim
18 words
The foam regulator of claim 12 wherein R 1 and R 2 are each a C 6-12 -alkyl.
Claim 16
Dependent Claim
36 words
The foam regulator of claim 12 wherein about 2 to 20 parts by weight of said mixture of (a), (b), (c), and (d) is admixed with said auxiliary component present q.s. to 100 parts by weight.
Claim 17
Dependent Claim
40 words
The foam regulator of claim 15 wherein: component (a) is present in about 20 to 45%; (b) is present in about 15 to 40%; (c) is present in about 20 to 50%; (d) is present in about 5 to 15%.
Claim 18
Dependent Claim
24 words
The foam regulator of claim 1 adsorbed on a water-soluble granular carrier whose particles have a grain size of about 0.1 to 1.6 mm.
Claim 19
Dependent Claim
24 words
The foam regulator of claim 12 adsorbed on a water-soluble granular carrier whose particles have a grain size of about 0.1 to 1.6 mm.
Claim 20
Dependent Claim
22 words
The foam regulator of claim 17 wherein said foam regulator composition is about 2 to 20% by weight of the adsorbed granulate.
Claim 21
Dependent Claim
22 words
The foam regulator of claim 18 wherein said foam regulator composition is about 2 to 20% by weight of the adsorbed granulate.
Claim 22
Dependent Claim
28 words
The foam regulator of claim 17 wherein said mixture of (a), (b), (c) and (d) is adsorbed while in a molten state and said carrier granules are heated.
Claim 23
Dependent Claim
28 words
The foam regulator of claim 18 wherein said mixture of (a), (b), (c) and (d) is adsorbed while in a molten state and said carrier granules are heated.
Claim 24
Dependent Claim
24 words
The foam regulator of claim 21 wherein the temperature of said carrier is plus/minus 20° C. of the solidification point of said molten mixture.
Claim 25
Dependent Claim
24 words
The foam regulator of claim 22 wherein the temperature of said carrier is plus/minus 20° C. of the solidification point of said molten mixture.
Claim 26
Dependent Claim
35 words
The foam regulator of claim 21 wherein said mixture of (a), (b), (c), and (d) is adsorbed while in the form of an aqueous solution or dispersion and said adsorbed granules are then spray dried.
Claim 27
Dependent Claim
35 words
The foam regulator of claim 23 wherein said mixture of (a), (b), (c), and (d) is adsorbed while in the form of an aqueous solution or dispersion and said adsorbed granules are then spray dried.
Claim 28
Dependent Claim
42 words
The foam regulator of claim 25 wherein water-soluble polymers are added to said aqueous solution or dispersion in a quantity of about 0.3 to 3% by weight based on the weight of the anhydrous constituents, prior to admixture with said granular carrier.
Claim 29
Dependent Claim
42 words
The foam regulator of claim 26 wherein water-soluble polymers are added to said aqueous solution or dispersion in a quantity of about 0.3 to 3% by weight based on the weight of the anhydrous constituents, prior to admixture with said granular carrier.
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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) | 1989-05-19 | 1989-11-18 | 1990-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-19 | 1993-11-18 | 1994-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-19 | 1997-11-18 | 1998-05-20 | $7700.00 | Window Closed / Lapsed |