Urethane-based adhesive composition
US-2024002710-A1 · Jan 4, 2024 · US
Hydrophilic aliphatic polyurethane foams
US8980966B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980966-B2 |
| Application number | US-201013392545-A |
| Country | US |
| Kind code | B2 |
| Filing date | Aug 26, 2010 |
| Priority date | Aug 29, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
Official abstract text for this publication.
The invention relates to hydrophilic aliphatic polyurethane foams obtained by reacting special prepolymers having a low monomer concentration and hydrophilic polyisocyanates in the presence of water. The absorptive properties make said polyurethane foams particularly suitable for producing wound dressings, cosmetic articles, or incontinence products.
First claim
Opening claim text (preview).
The invention claimed is: 1. Process for preparing hydrophilic aliphatic polyurethane foams consisting essentially of mixing A) isocyanate-functional prepolymers having a weight fraction of low molecular weight aliphatic diisocyanates having a molar mass of 140 to 278 g/mol of below 1.0% by weight based on the prepolymer, obtainable by reaction of A1) low molecular weight aliphatic diisocyanates having a molar mass of 140 to 278 g/mol with A2) di- to hexafunctional polyalkylene…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C08G18/283Primary
Chemistry & Metallurgy · mapped topic
Human Necessities · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US8980966B2 cover?
- The invention relates to hydrophilic aliphatic polyurethane foams obtained by reacting special prepolymers having a low monomer concentration and hydrophilic polyisocyanates in the presence of water. The absorptive properties make said polyurethane foams particularly suitable for producing wound dressings, cosmetic articles, or incontinence products.
- Who is the assignee on this patent?
- Dörr Sebastian, Niesten Meike, Bayer Materialscience Ag
- What technology area does this patent fall under?
- Primary CPC classification C08G18/283. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Mar 17 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).