US3956512A
Expired / Lapsed
US
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Collagen compositions and the method of preparing the same
Assignee: Union Carbide Corp
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Filing: 1975-04-28
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Granted: 1976-05-11
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Expires: 1995-04-28
Abstract
Abstract A homogeneous formable aqueous collagen composition having uniformly incorporated therein at least about 1% by weight based on the solids content thereof of an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol, acetylated fatty acid partial esters of a polyhydric alcohol, and mixtures of the same, said collagen composition being formable into shaped collagen structures that exhibit improved antiblocking characteristics.
Inventors
- 👤 Thomas E. Higgins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:13
CPC Classifications
C; C08; C08L; C08L89/00; A; A22; A22C; A22C13/00; A22C13/0013; A22C13/0016
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
100 words
A method of preparing a formable collagen composition suitable for use in preparing a shaped collagen structure which exhibits improved antiblocking characteristics including the step of uniformly incorporating into a formable collagen composition an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same, in an amount of at least about 1% by weight of said additive based on the solids content of said collagen composition.
Claim 2
Independent Claim
100 words
A method of preparing a formable collagen composition suitable for use in preparing a shaped collagen structure which exhibits improved antiblocking characteristics including the step of uniformly incorporating into a formable collagen composition an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same, in an amount of at least about 1% by weight of said additive based on the solids content of said collagen composition.
Claim 3
Dependent Claim
36 words
A method as claimed in claim 1 wherein said antiblock additive is incorporated in said collagen composition in an amount from about 5% to about 20% by weight of the solids content of said collagen composition.
Claim 4
Dependent Claim
22 words
A method as claimed in claim 1 wherein said formable collagen composition comprises at least about 6% by weight of collagen solids.
Claim 5
Dependent Claim
28 words
A method as claimed in claim 1 wherein said antiblock additive is a fatty acid partial ester of a polyhydric alcohol having at least one free hydroxyl group.
Claim 6
Dependent Claim
29 words
A method as claimed in claim 1 wherein said antiblock additive is an acetylated fatty acid partial ester of a polyhydric alcohol having at least one free hydroxyl group.
Claim 7
Independent Claim
142 words
A method of preparing a formable collagen composition suitable for use in preparing a shaped collagen structure which exhibits improved antiblocking characteristics including the steps of: a. preparing a viscous aqueous dispersion of non-collagenous fibers and an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same; b. preparing a comminuted pre-swollen collagen mass; and then c. admixing an amount of said aqueous fiber-antiblock additive dispersion with said pre-swollen collagen mass so that at least about 1% by weight of said antiblock additive based on the solids content of said collagen admixture is incorporated in the collagen composition and then thoroughly mixing until a uniform admixture is obtained.
Claim 8
Independent Claim
142 words
A method of preparing a formable collagen composition suitable for use in preparing a shaped collagen structure which exhibits improved antiblocking characteristics including the steps of: a. preparing a viscous aqueous dispersion of non-collagenous fibers and an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same; b. preparing a comminuted pre-swollen collagen mass; and then c. admixing an amount of said aqueous fiber-antiblock additive dispersion with said pre-swollen collagen mass so that at least about 1% by weight of said antiblock additive based on the solids content of said collagen admixture is incorporated in the collagen composition and then thoroughly mixing until a uniform admixture is obtained.
Claim 9
Dependent Claim
36 words
A method as claimed in claim 6 wherein said antiblock additive is incorporated in said collagen composition in an amount from about 5% to about 20% by weight of the solids content of said collagen composition.
Claim 10
Dependent Claim
28 words
A method as claimed in claim 6 wherein said antiblock additive is a fatty acid partial ester of a polyhydric alcohol having at least one free hydroxyl group.
Claim 11
Dependent Claim
29 words
A method as claimed in claim 6 wherein said antiblock additive is an acetylated fatty acid partial ester of a polyhydric alcohol having at least one free hydroxyl group.
Claim 12
Dependent Claim
21 words
A method as claimed in claim 6 wherein said collagen composition contains at least about 6% by weight of collagen solids.
Claim 13
Dependent Claim
72 words
A homogeneous formable aqueous collagen composition having uniformly incorporated therein at least about 1% by weight based on the solids content thereof of an antiblock additive, said antiblock additive being selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same.
Claim 14
Dependent Claim
72 words
A homogeneous formable aqueous collagen composition having uniformly incorporated therein at least about 1% by weight based on the solids content thereof of an antiblock additive, said antiblock additive being selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same.
Claim 15
Dependent Claim
29 words
The collagen composition of claim 11 wherein said collagen composition contains from about 5% to about 20% by weight of the dry solids content thereof of said antiblock additive.
Claim 16
Dependent Claim
20 words
The collagen composition of claim 11 wherein said collagen composition comprises at least about 6% by weight of collagen solids.
Claim 17
Dependent Claim
28 words
The collagen composition of claim 13 wherein said collagen composition contains from about 5% to about 30% by weight of the dry solids content thereof of noncollagenous fibers.
Claim 18
Dependent Claim
69 words
A collagenous tubular food casing having uniformly incorporated therein from about 0.6% to about 19% by weight of all components of said casing of an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same.
Claim 19
Dependent Claim
69 words
A collagenous tubular food casing having uniformly incorporated therein from about 0.6% to about 19% by weight of all components of said casing of an antiblock additive selected from the group consisting of fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, acetylated fatty acid partial esters of a polyhydric alcohol having at least one free hydroxyl group, and mixtures of the same.
Claim 20
Dependent Claim
27 words
The tubular casing of claim 15 having uniformly incorporated therein from about 3% to about 19% by weight of all components of said casing of non-collagenous fibers.
Claim 21
Dependent Claim
22 words
The tubular casing of claim 15 having uniformly incorporated therein from about 3% to about 13% by weight of said antiblock additive.
Claim 22
Dependent Claim
27 words
The tubular casing of claim 15 wherein said antiblock additive is a fatty acid partial ester of a polyhydric alcohol having at least one free hydroxyl group.
Claim 23
Dependent Claim
28 words
The tubular casing of claim 15 wherein said antiblock additive is an acetylated fatty acid partial ester of a polyhydric alcohol having at least one free hydroxyl group.
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) | 1979-05-11 | 1979-11-10 | 1980-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-11 | 1983-11-10 | 1984-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-11 | 1987-11-10 | 1988-05-11 | $7700.00 | Window Closed / Lapsed |