US4356020A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fertilizer compositions containing alkylene oxide adduct anticaking agents
Assignee: HENLEL HEKEL KGAA HENKELSTRASSE KGaA
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Filing: 1981-11-20
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Granted: 1982-10-26
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Expires: 2001-11-20
Abstract
Abstract This invention relates to fertilizer compositions containing alkylene oxide anticaking agents. More particularly, this invention relates to a method of decreasing the caking during storage in a hygroscopic salt or fertilizer which normally cakes on storage, which comprises uniformly admixing with said hygroscopic salt or fertilizer an effective amount of an anticaking agent consisting of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of a β-hydroxyalkyl-diethanolamine of the formula ##STR1## wherein R 1 is an alkyl of from 1 to 18 carbon atoms and R 2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R 1 and R 2 being from 8 to 18.
Inventors
- 👤 Margarete Grunert
- 👤 Holger Tesmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:10
CPC Classifications
B; B01; B01J; B01J2/00; B01J2/30; C; C05; C05G; C05G5/00; C05G5/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
115 words
A method of decreasing the caking during storage in a hygroscopic salt or fertilizer which normally cakes on storage, which comprises uniformly admixing with said hygroscopic salt or fertilizer an effective anticaking amount of an anticaking agent consisting of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of a β-hydroxyalkyl-diethanolamine of the formula wherein R 1 is an alkyl of from 1 to 18 carbon atoms and R 2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R 1 and R 2 being from 8 to 18.
Claim 2
Independent Claim
115 words
A method of decreasing the caking during storage in a hygroscopic salt or fertilizer which normally cakes on storage, which comprises uniformly admixing with said hygroscopic salt or fertilizer an effective anticaking amount of an anticaking agent consisting of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of a β-hydroxyalkyl-diethanolamine of the formula wherein R 1 is an alkyl of from 1 to 18 carbon atoms and R 2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R 1 and R 2 being from 8 to 18.
Claim 3
Dependent Claim
27 words
The method of claim 1, wherein from 0.005 to 0.2% by weight of anticaking agent, based upon the weight of the hygroscopic salt or fertilizer, is used.
Claim 4
Dependent Claim
125 words
A composition in particulate, free-flowing form consisting essentially of a hygroscopic fertilizer or salt component which normally cakes on storage having a uniformly distributed, effective surface content as anticaking agent of from about 0.005 to 0.2% by weight, based upon the weight of the hygroscopic fertilizer or salt component, of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of β-hydroxyalkyl-diethanolamine of the formula wherein R 1 is an alkyl of from 1 to 18 carbon atoms and R 2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R 1 and R 2 being from 8 to 18.
Claim 5
Dependent Claim
125 words
A composition in particulate, free-flowing form consisting essentially of a hygroscopic fertilizer or salt component which normally cakes on storage having a uniformly distributed, effective surface content as anticaking agent of from about 0.005 to 0.2% by weight, based upon the weight of the hygroscopic fertilizer or salt component, of one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and/or propylene oxide onto 1 mol of β-hydroxyalkyl-diethanolamine of the formula wherein R 1 is an alkyl of from 1 to 18 carbon atoms and R 2 is hydrogen or alkyl of from 1 to 16 carbon atoms, the sum of the carbon atoms in R 1 and R 2 being from 8 to 18.
Claim 6
Dependent Claim
36 words
The composition of claim 3, wherein the anticaking agent comprises one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide onto 1 mol of the β-hydroxyalkyl-diethanolamine.
Claim 7
Dependent Claim
36 words
The composition of claim 3, wherein the anticaking agent comprises one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of propylene oxide onto 1 mol of the β-hydroxyalkyl-diethanolamine.
Claim 8
Dependent Claim
45 words
The composition of claim 3, wherein the anticaking agent comprises one or more compounds selected from the group consisting of adducts of from 6 to 15 mols of ethylene oxide and from 6 to 15 mols of propylene oxide onto 1 mol of the β-hydroxyalkyl-diethanolamine.
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) | 1985-10-25 | 1986-04-26 | 1986-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-10-25 | 1990-04-26 | 1990-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-10-25 | 1994-04-26 | 1994-10-26 | $7700.00 | Window Closed / Lapsed |