Non-hazardous water-based polyurethane dispersion
US-12110373-B2 · Oct 8, 2024 · US
Soft thermoplastic polyurethane based on the ester of a tricarboxylic acid
US8993690B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8993690-B2 |
| Application number | US-201013266199-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 26, 2010 |
| Priority date | Apr 29, 2009 |
| Publication date | Mar 31, 2015 |
| Grant date | Mar 31, 2015 |
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Abstract
Official abstract text for this publication.
The invention refers to a thermoplastic polyurethane produced from at least an organic diisocyanate and a compound which is reactive toward isocyanates, wherein the polyurethane comprises the ester of a tricarboxylic acid with at least one alcohol and wherein all acid groups of the tricarboxylic acid are esterified with an alcohol. The invention further refers to a process for producing the respective polyurethane, products comprising this thermoplastic polyurethane and the use of the ester of a tricarboxylic acid as plasticizer in thermoplastic polyurethanes.
First claim
Opening claim text (preview).
The invention claimed is: 1. A thermoplastic polyurethane composition, comprising: A) 50-99% by weight of a thermoplastic polyurethane comprising, in reacted form, 1) at least one organic diisocyanate (a), 2) at least one compound (b) which is reactive toward an isocyanate and has a molecular weight of from 0.5 kg/mol to 8 kg/mol, 3) a chain extender (c) comprising 1,2-ethylenediol, wherein the 1,2-ethylene diol is employed in an amount of from 2.5% to 3.5% by weight based on…
Assignees
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Classifications
Chemistry & Metallurgy · mapped topic
- C08G18/10Primary
Chemistry & Metallurgy · mapped topic
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 US8993690B2 cover?
- The invention refers to a thermoplastic polyurethane produced from at least an organic diisocyanate and a compound which is reactive toward isocyanates, wherein the polyurethane comprises the ester of a tricarboxylic acid with at least one alcohol and wherein all acid groups of the tricarboxylic acid are esterified with an alcohol. The invention further refers to a process for producing the res…
- Who is the assignee on this patent?
- Chen Bin-Eric, Schaefer Frank, Kempfert Dirk, and 9 more
- What technology area does this patent fall under?
- Primary CPC classification C08G18/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 31 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).