GB1061409A - Urea-extended polyurethane foam - Google Patents
Urea-extended polyurethane foamInfo
- Publication number
- GB1061409A GB1061409A GB20614/64A GB2061464A GB1061409A GB 1061409 A GB1061409 A GB 1061409A GB 20614/64 A GB20614/64 A GB 20614/64A GB 2061464 A GB2061464 A GB 2061464A GB 1061409 A GB1061409 A GB 1061409A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- foam
- polyurethane foam
- fertilizer
- preparation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/005—Post-treatment
Abstract
A plant feeding composition comprises a polyurethane foam extended with a free urea-containing fertilizer, a major proportion of the fertilizer being leachable from the foam by water. The foam in the shape of cubes may be cast on the ground near the plants, dug into the soil or alternatively it may be moulded into the shape of a hollow cone which may be elevated over the plant with the base up.ALSO:A process for the preparation of a urea extended polyurethane foam comprises adding 5 to 80 weight per cent of urea or urea containing mixed fertilizer to at least one of the components to be used in the preparation of the polyurethane foam and thereafter carrying out preparation of the foam. In an example urea is mixed with a prepolymer of a polyether, which is a condensation product of sorbitol with propylene oxide, and toluene diisocyanate and the whole is mixed with another component made by mixing a silicone oil surfactant, triethylene diamine as catalyst, additional polyether and trichloromonofluoromethane as blowing agent to form a foam. The product may be used as a plant feeding composition, the urea being leached from the foam by water in the soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20614/64A GB1061409A (en) | 1964-05-19 | 1964-05-19 | Urea-extended polyurethane foam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB20614/64A GB1061409A (en) | 1964-05-19 | 1964-05-19 | Urea-extended polyurethane foam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1061409A true GB1061409A (en) | 1967-03-15 |
Family
ID=10148850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20614/64A Expired GB1061409A (en) | 1964-05-19 | 1964-05-19 | Urea-extended polyurethane foam |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1061409A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2181332A (en) * | 1985-10-14 | 1987-04-23 | Ici Plc | Plant growth regulating device |
-
1964
- 1964-05-19 GB GB20614/64A patent/GB1061409A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2181332A (en) * | 1985-10-14 | 1987-04-23 | Ici Plc | Plant growth regulating device |
| GB2181332B (en) * | 1985-10-14 | 1989-09-27 | Ici Plc | Plant growth regulating device |
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