Patent US3720765A successfully refreshed from Google Patents.
US3720765A
Expired / Lapsed
US
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Crosslinked protein with acid anhydride as a ruminant feed material
Assignee: Monsanto Co
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Filing: 1970-10-27
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Granted: 1973-03-13
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Expires: 1990-10-27
Abstract
Abstract Improved protein feed material for ruminants which is resistant to digestive breakdown in the rumen but not in the abomasum and/or intestines which comprises the reaction product of a protein-containing feed material and an organic acid anhydride capable of crosslinking protein. Exemplary of such organic acid anhydrides is maleic anhydride.
Inventors
- 👤 R Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:50
CPC Classifications
A; A23; A23K; A23K20/00; A23K20/10; A23K20/142; A23K20/147; A23K10/00; A23K10/20; A23K10/30; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/832
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
144 words
A method for improving the protein utilization of ruminant animals which comprises feeding the ruminant animal the reaction product of a protein-containing nutrient feed material selected from the group consisting of silage, grains, nuts, chaffs, casein, soybean meal, fish meal, peanut meal, beef scraps, port scraps, linseed meal and milk solids and an organic acid anhydride monomer to crosslink the protein, the monomer being selected from the group consisting of maleic anhydride, itaconic anhydride, citraconic anhydride, succinic anhydride and phthalic anhydride, the amount of organic acid anhydride monomer in said reaction product being in the range of from about 0.005, to about 0.1 mole per gram of protein, said amount being sufficient to render said feed material resistant to digestive breakdown in the fluid of the rumen but insufficient to prevent substantial digestive breakdown in the fluids of the abomasum and of the intestines.
Claim 2
Independent Claim
144 words
A method for improving the protein utilization of ruminant animals which comprises feeding the ruminant animal the reaction product of a protein-containing nutrient feed material selected from the group consisting of silage, grains, nuts, chaffs, casein, soybean meal, fish meal, peanut meal, beef scraps, port scraps, linseed meal and milk solids and an organic acid anhydride monomer to crosslink the protein, the monomer being selected from the group consisting of maleic anhydride, itaconic anhydride, citraconic anhydride, succinic anhydride and phthalic anhydride, the amount of organic acid anhydride monomer in said reaction product being in the range of from about 0.005, to about 0.1 mole per gram of protein, said amount being sufficient to render said feed material resistant to digestive breakdown in the fluid of the rumen but insufficient to prevent substantial digestive breakdown in the fluids of the abomasum and of the intestines.
Claim 3
Dependent Claim
13 words
The method of claim 1 wherein the organic acid anhydride is maleic anhydride.
Claim 4
Dependent Claim
13 words
The method of claim 1 wherein the organic acid anhydride is phthalic anhydride.
References Cited (Backward Citations)
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US2518666A
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US2932589A
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US3108995A
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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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |