US5380780A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Absorbable coating and blend
Assignee: Technology Holding Co II
•
Filing: 1992-09-14
•
Granted: 1995-01-10
•
Expires: 2012-09-14
Abstract
Abstract Absorbable coating and absorbable blend of polycaprolactone and crystallization modifier especially suitable for use in the coating of surgical sutures and in the controlled release of chemical or pharmaceutical agents.
Inventors
- 👤 James R. Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:19
CPC Classifications
A; A61; A61K; A61K9/00; A61K9/20; A61K9/2004; A61K9/2013; A61K9/2022; A61K9/2031; A61K9/204; A61L; A61L17/00; A61L17/14; A61L17/145; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/2964; Y10T428/2967; Y10T428/31504; Y10T428/31725
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
59 words
An absorbable coating comprising a blend of about 95 to about 5% by weight of a homopolymer of -caprolactone and about 5 to about 95% by weight of a crystallization modifier selected from the group consisting of crystalline fatty acids and crystalline esters of fatty acids which are saturated C 12 -C 18 fatty acid esters of polyhydric alcohols.
Claim 2
Dependent Claim
59 words
An absorbable coating comprising a blend of about 95 to about 5% by weight of a homopolymer of -caprolactone and about 5 to about 95% by weight of a crystallization modifier selected from the group consisting of crystalline fatty acids and crystalline esters of fatty acids which are saturated C 12 -C 18 fatty acid esters of polyhydric alcohols.
Claim 3
Dependent Claim
29 words
The coating according to claim 1, wherein said crystallization modifier is crystalline esters or fatty acids which are saturated C 12 -C 18 fatty acid esters of polyhydric alcohols.
Claim 4
Dependent Claim
23 words
The coating according to claim 2 wherein said polyhydric alcohols are selected from the group consisting of glycerol, ethylene glycol and propylene glycol.
Claim 5
Dependent Claim
43 words
The coating according to claim 1 wherein said homopolymer of -caprolactone is present in the amount ranging from about 70 to about 30% by weight and said crystallization modifier is present in the amount ranging from about 30 to about 70% by weight.
Claim 6
Dependent Claim
26 words
The coating according to claim 1 wherein said homopolymer of ε-caprolactone and said crystallization modifier are each present in the amount of about 50% by weight.
Claim 7
Dependent Claim
19 words
The coating according to claim 5 wherein said homopolymer of ε-caprolactone has a molecular weight of at least 1,000.
Claim 8
Dependent Claim
22 words
The coating according to claim 6 wherein said homopolymer of ε-caprolactone has a molecular weight ranging from about 15,000 to about 40,000.
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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) | 1998-01-09 | 1998-07-11 | 1999-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-01-09 | 2002-07-11 | 2003-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-01-09 | 2006-07-11 | 2007-01-10 | $7700.00 | Window Closed / Lapsed |