Polyol premixes, thermally insulating rigid polyurethane foams and methods for their production
US-2024018292-A1 · Jan 18, 2024 · US
Polyurethane/polyisocyanurate foam having improved adhesion properties
US8980422B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8980422-B2 |
| Application number | US-201013508998-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 9, 2010 |
| Priority date | Nov 14, 2009 |
| Publication date | Mar 17, 2015 |
| Grant date | Mar 17, 2015 |
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Abstract
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A polyurethane/polyisocyanurate foam is obtainable from the reaction of A) a polyol component comprising A1) an aromatic polyester polyol, A2) a polyether polyol started on a carbohydrate polyol and A3) a polyether polyol started on ethylene glycol, wherein the total hydroxyl number of the polyol component A) is from ≧150 mg KOH/g to ≦300 mg KOH/g; with B) a polyisocyanate component, wherein the equivalent ratio of NCO groups to the sum of the hydrogen atoms reactive towards NCO groups is from ≧110:100 to ≦200:100. This foam has improved adhesion properties to facings and is suitable for the production of composite elements without requiring the use of an additional adhesion promoter.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polyurethane/polyisocyanurate foam obtained from the reaction of A) a polyol component comprising A1) an aromatic polyester polyol, A2) a polyether polyol started on a carbohydrate polyol, and A3) a polyether polyol started on ethylene glycol, wherein the total hydroxyl number of the polyol component A) is from ≧150 mg KOH/g to ≦300 mg KOH/g; with B) a polyisocyanate component, wherein the equivalent ratio of NCO groups to the sum of t…
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Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Chemistry & Metallurgy · mapped topic
- C08G18/1816Primary
Chemistry & Metallurgy · mapped topic
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- What does patent US8980422B2 cover?
- A polyurethane/polyisocyanurate foam is obtainable from the reaction of A) a polyol component comprising A1) an aromatic polyester polyol, A2) a polyether polyol started on a carbohydrate polyol and A3) a polyether polyol started on ethylene glycol, wherein the total hydroxyl number of the polyol component A) is from ≧150 mg KOH/g to ≦300 mg KOH/g; with B) a polyisocyanate component, wherein th…
- Who is the assignee on this patent?
- Roers Rolf, Heinemann Torsten, Mateu Maria Dolors, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C08G18/1816. 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).