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US4983403A
Expired / Lapsed
US
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Granules for feeding ruminants with an enzymatically degradable coating
Assignee: Rhone Poulenc Sante SA
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Filing: 1988-12-13
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Granted: 1991-01-08
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Expires: 2008-12-13
Abstract
Abstract Granules containing feed additives for ruminants are coated with an enzymatically degradable composition, consisting of: zein in combination with a non-water-soluble polymer and optionally a plasticizing agent, or zein in combination with a hydrophobic substance and optionally a non-water-soluble polymer.
Inventors
- 👤 Pierre Ardaillon
- 👤 Paul Bourrain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:12
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/48; A61K9/50; A61K9/5005; A61K9/5021; A61K9/5052; A23; A23K; A23K40/00; A23K40/30; A23K40/35; A61K9/5015; A61K9/5036; A61K9/5042; A61K9/5047; Y; Y10; Y10S; Y10S426/00; Y10S426/807
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
117 words
Composition for feeding an additive to ruminants which is stable in the rumen and in the abomasum and which is degraded by the enzymes of the intestine thereby releasing the additive, in the form of granules consisting essentially of a ruminant feed additive core provided with a coating in a single layer of a mixture consisting of 50 to 90% by weight of zein in combination with a non-water-soluble polymer and 0 to 10% by weight of a plasticizing agent; or of 10 to 50% by weight of zein in combination with a hydrophobic substance and 0 to 10% by weight of a non-water-soluble polymer, the said mixture constituting 5 to 60% by weight of the granules.
Claim 2
Dependent Claim
117 words
Composition for feeding an additive to ruminants which is stable in the rumen and in the abomasum and which is degraded by the enzymes of the intestine thereby releasing the additive, in the form of granules consisting essentially of a ruminant feed additive core provided with a coating in a single layer of a mixture consisting of 50 to 90% by weight of zein in combination with a non-water-soluble polymer and 0 to 10% by weight of a plasticizing agent; or of 10 to 50% by weight of zein in combination with a hydrophobic substance and 0 to 10% by weight of a non-water-soluble polymer, the said mixture constituting 5 to 60% by weight of the granules.
Claim 3
Dependent Claim
45 words
Composition according to claim 1 in which the said mixture consists of 50 to 90% by weight of zein in combination with a non-water-soluble polymer chosen from non-water-soluble cellulose ethers or esters and polyvinyl esters, and 0 to 10% by weight of a plasticizing agent.
Claim 4
Dependent Claim
15 words
Composition according to claim 2 in which the plasiticizing agent is triacetin or propylene glycol.
Claim 5
Dependent Claim
23 words
Composition according to claim 2 in which the non-water-soluble polymer is ethyl cellulose, cellulose acetate, cellulose propionate, cellulose acetate butyrate, or polyvinyl acetate.
Claim 6
Dependent Claim
52 words
Composition according to claim 1 in which the said mixture consists of 10 to 50% by weight of zein in combination with a hydrophobic substance whose melting point is above 60° C and 0 to 10% by weight of a non-water-soluble polymer chosen from non-water-soluble cellulose ethers or esters and polyvinyl esters.
Claim 7
Dependent Claim
21 words
Composition according to claim 5 in which the hydrophobic substance is a fatty acid, fatty ester, fatty alcohol or mixture thereof.
Claim 8
Dependent Claim
23 words
Composition according to claim 5 in which the non-water-soluble polymer is ethyl cellulose, cellulose acetate, cellulose propionate, cellulose acetate butyrate, or polyvinyl acetate.
Claim 9
Dependent Claim
21 words
Composition according to claim 1 in which the ruminant feed additive is a veterinary medicine, a vitamin, or an amino acid.
Claim 10
Dependent Claim
15 words
Composition according to claim 1 in which the ruminant feed additive is methionine or lysine.
Claim 11
Dependent Claim
115 words
Method for feeding to ruminants an additive composition which is stable in the rumen and in the abomasum and which is degraded by the enzymes of the intestine thereby releasing the additive, which consists essentially of feeding to said ruminants a ruminant feed additive provided with a coating in a single layer mixture consisting of 50 to 90% by weight of zein in combination with a non-water-soluble polymer and 0 to 10% by weight of a plasticizing agent; or of 10 to 50% by weight of zein in combination with a hydrophobic substance and 0 to 10% by weight of a non-water-soluble polymer, the said mixture constituting 5 to 60% by weight of the granules.
Claim 12
Dependent Claim
115 words
Method for feeding to ruminants an additive composition which is stable in the rumen and in the abomasum and which is degraded by the enzymes of the intestine thereby releasing the additive, which consists essentially of feeding to said ruminants a ruminant feed additive provided with a coating in a single layer mixture consisting of 50 to 90% by weight of zein in combination with a non-water-soluble polymer and 0 to 10% by weight of a plasticizing agent; or of 10 to 50% by weight of zein in combination with a hydrophobic substance and 0 to 10% by weight of a non-water-soluble polymer, the said mixture constituting 5 to 60% by weight of the granules.
Claim 13
Dependent Claim
51 words
Method according to claim 10 in which the said feed additive is coated with a mixture consisting of 50 to 90% by weight of zein in combination with a non-water-soluble polymer chosen from non-water-soluble cellulose ethers or esters and polyvinyl esters, and 0 to 10% by weight of a plasticizing agent.
Claim 14
Dependent Claim
15 words
Method according to claim 11 in which the plasticizing agent is triacetin or propylene glycol.
Claim 15
Dependent Claim
23 words
Method according to claim 11 in which the non-water-soluble polymer is ethyl cellulose, cellulose acetate, cellulose propionate, cellulose acetate butyrate, or polyvinyl acetate.
Claim 16
Dependent Claim
58 words
Method according to claim 10 in which the said feed additive is coated with a mixture consisting of 10 to 50% by weight of zein in combination with a hydrophobic substance whose melting point is above 60° C. and 0 to 10% by weight of a non-water-soluble polymer chosen from non-water-soluble cellulose ethers or esters and polyvinyl esters.
Claim 17
Dependent Claim
23 words
Method according to claim 14 in which the hydrophobic substance is a fatty acid, fatty acid, fatty ester, fatty alcohol or mixture thereof.
Claim 18
Dependent Claim
23 words
Method according to claim 14 in which the non-water-soluble polymer is ethyl cellulose, cellulose acetate, cellulose propionate, cellulose acetate butyrate, or polyvinyl acetate.
Claim 19
Dependent Claim
21 words
Method according to claim 10 in which the ruminant feed additive is a veterinary medicine, a vitamin, or an amino acid.
Claim 20
Dependent Claim
15 words
Method according to claim 10 in which the ruminant feed additive is methionine or lysine.
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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) | 1994-01-07 | 1994-07-09 | 1995-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-01-07 | 1998-07-09 | 1999-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-01-07 | 2002-07-09 | 2003-01-08 | $7700.00 | Window Closed / Lapsed |