Liquid, adhesion-promoting additive and process for its preparation
US-9221945-B2 · Dec 29, 2015 · US
Semi-crystalline, fast absorbing polymer formulation
US9200112B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9200112-B2 |
| Application number | US-53825909-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 10, 2009 |
| Priority date | Aug 10, 2009 |
| Publication date | Dec 1, 2015 |
| Grant date | Dec 1, 2015 |
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Abstract
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The present invention relates to a composition comprising a semi-crystalline, absorbable copolymer formulation wherein the first component is hydroxy-capped polycondensation product of diglycolic acid and a mixture of two idols, diethylene glycol (DEG) and ethylene glycol (EG), with DEG added in larger molar amount, and wherein the second component, glycolide is incorporated during the subsequent ring-opening polymerization. The resulting hydrophilic resin has low crystallinity level, glass transition temperature, Tg, slightly below room temperature, and may be particularly useful for making monofilaments, multifilaments, microspheres, or melt blown nonwoven constructs or other medical devices where fast hydrolysis rates and superior mechanical properties are desirable.
First claim
Opening claim text (preview).
What is claimed is: 1. A co-polyester comprising the reaction product of a polycondensation polyester and at least one lactone monomer, wherein the polycondensation polyester comprises the reaction product of diglycolic acid and/or a derivative thereof with diethylene glycol and ethylene glycol wherein the molar ratio of diethylene glycol to ethylene glycol is in the range from about 2:1 to 4:1; wherein the at least one lactone monomer comprises at least 75 mole percent glycolide b…
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Chemistry & Metallurgy · mapped topic
- C08G63/66Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9200112B2 cover?
- The present invention relates to a composition comprising a semi-crystalline, absorbable copolymer formulation wherein the first component is hydroxy-capped polycondensation product of diglycolic acid and a mixture of two idols, diethylene glycol (DEG) and ethylene glycol (EG), with DEG added in larger molar amount, and wherein the second component, glycolide is incorporated during the subseque…
- Who is the assignee on this patent?
- Andjelic Sasa, Ethicon Inc
- What technology area does this patent fall under?
- Primary CPC classification C08G63/66. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 01 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).