Surface additive based on polysiloxane modified unsaturated polyester
US-2026035515-A1 · Feb 5, 2026 · US
Aminosilane adhesion promoter for urethane system
US9834641B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9834641-B2 |
| Application number | US-201415103932-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 25, 2014 |
| Priority date | Dec 12, 2013 |
| Publication date | Dec 5, 2017 |
| Grant date | Dec 5, 2017 |
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- Title
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Abstract
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A polyester polyol comprising at least one esterified unit of formula (I) wherein L is a difunctional aliphatic group having from two to six carbon atoms and R is a C 1 -C 4 alkyl group.
First claim
Opening claim text (preview).
The invention claimed is: 1. A polyester polyol which has a structure shown in formula (II) wherein R 1 is hydrogen and R 2 is methyl, m is from 4 to 8, n is from 4-10 and R is a C 1 -C 4 alkyl group. 2. A two-component polyurethane system comprising: (a) a polyol component comprising from 0.2 to 100 wt % of a polyester polyol which has a structure shown in formula (II) wherein R 1 is hydrogen and R 2 is methyl, m is from 4 to 8, n is from 4-10 and R is a C 1 -C 4 alkyl group; and (b) an isocyanate-terminated prepolymer comprising polymerized residues of: (i) at least one diisocyanate selected from the group consisting of diphenyl methane diisocyanate and toluene diisocyanate, and (ii) a glycol having M n from 300 to 3500; said glycol being polyethylene glycol, polypropylene glycol or a mixture thereof.
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Classifications
containing silicon · CPC title
containing only one alkylene bisphenyl group · CPC title
from polyesters · CPC title
- C08G63/6956Primary
Dicarboxylic acids and dihydroxy compounds · CPC title
Mixtures of compounds of group C08G18/42 with compounds of group C08G18/48 · CPC title
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Frequently asked questions
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- What does patent US9834641B2 cover?
- A polyester polyol comprising at least one esterified unit of formula (I) wherein L is a difunctional aliphatic group having from two to six carbon atoms and R is a C 1 -C 4 alkyl group.
- Who is the assignee on this patent?
- Rohm & Haas, Dow Global Technologies Llc
- What technology area does this patent fall under?
- Primary CPC classification C08G63/6956. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 05 2017 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).