Fertilizer capsule comprising one or more cores and method of making same
US-2016340265-A1 · Nov 24, 2016 · US
Urea condensation compositions and methods of making the same
US11465945B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11465945-B2 |
| Application number | US-201816606968-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 16, 2018 |
| Priority date | Apr 24, 2017 |
| Publication date | Oct 11, 2022 |
| Grant date | Oct 11, 2022 |
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- Title
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Abstract
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Urea-aldehyde condensation compositions, processes for preparing the same, and the use of said compositions are disclosed. The compositions can have a nitrogen content that is 100% water soluble and can be used as a fertilizer.
First claim
Opening claim text (preview).
The invention claimed is: 1. A urea condensation composition comprising: isobutylidenediurea; mono (ureidomethylene) isobutylenediurea; bis(ureidomethylene) isobutylenediurea; at least two, three, or all four methylene urea oligomers selected from the group consisting of methylene diurea, dimethylene triurea, trimethylene tetraurea, and tetramethylene pentaurea; and less than 15 wt. % urea, wherein the urea condensation composition has a nitrogen content comprising 100% water soluble nitrogen content. 2. The urea condensation composition of claim 1 , wherein the water soluble nitrogen content comprises 75% or more of cold water soluble nitrogen content. 3. The urea condensation composition of claim 1 , comprising a nitrogen content that is at least 32% by weight of the urea condensation composition. 4. The urea condensation composition of claim 1 , comprising a water soluble nitrogen content comprising 60% or more of cold water soluble nitrogen content. 5. The urea condensation composition of claim 1 , comprising a nitrogen content that is 32% to 42% by weight of the urea condensation composition. 6. The urea condensation composition of claim 1 , comprising a nitrogen content that is 35 to 38% by weight of the urea condensation composition. 7. The urea condensation composition of claim 1 , comprising a water soluble nitrogen content comprising 80% or more of cold water soluble nitrogen content. 8. The urea condensation composition of claim 1 , comprising a water soluble nitrogen content comprising 82% or more of cold water soluble nitrogen content. 9. A method for producing the urea condensation composition of claim 1 , the method comprising: (a) reacting a solution comprising urea, formaldehyde, and at least one C2-C4 aldehyde under basic conditions to form a first composition; and (b) acidifying the first composition to form the urea condensation composition. 10. A method for producing the urea condensation composition of claim 1 , the method comprising: (a) reacting a solution comprising urea and at least one first C1-C4 aldehyde or a derivative thereof under basic conditions to form a first composition; and (b) reacting the first composition and at least one second C1-C4 aldehyde or a derivative thereof under acidic conditions to form the urea condensation composition, wherein the at least one first C1-C4 aldehyde is different from the least one second C1-C4 aldehyde.
Assignees
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Classifications
- C05C9/02Primary
containing urea-formaldehyde condensates · CPC title
from urea · CPC title
Ureas; Thioureas · CPC title
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- What does patent US11465945B2 cover?
- Urea-aldehyde condensation compositions, processes for preparing the same, and the use of said compositions are disclosed. The compositions can have a nitrogen content that is 100% water soluble and can be used as a fertilizer.
- Who is the assignee on this patent?
- Sabic Global Technologies Bv
- What technology area does this patent fall under?
- Primary CPC classification C05C9/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Oct 11 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).