Two component polyurethane composition
US-2018371148-A1 · Dec 27, 2018 · US
Aldimine containing glass bonding primer
US11697704B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11697704-B2 |
| Application number | US-202017081112-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 27, 2020 |
| Priority date | Oct 18, 2016 |
| Publication date | Jul 11, 2023 |
| Grant date | Jul 11, 2023 |
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- Title
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Abstract
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A novel primer composition contains aldimine and/or epoxy resins, a process of making such primer to be used in glass bonding adhesive kit.
First claim
Opening claim text (preview).
What is claimed is: 1. A primer composition comprising, based on the total weight of the composition: an organic solvent, selected from acetone, methyl ethyl ketone, and a mixture thereof; an aldimine; an alkoxysilane; a non-reactive film forming resin; a polyisocyanate prepolymer; a reactive modifier, which is an oxazolidine-containing compound; a catalyst; an isocyanate stabilizer, which is diethyl malonate; and diglycidyl ether of bisphenol A; wherein the diglycidyl ether of bisphenol A is present at less than 10 wt %. 2. The primer composition of claim 1 which is substantially free of carbon black. 3. The primer composition of claim 1 wherein the aldimine is a dialdimine. 4. The primer composition of claim 1 wherein the aldimine is reaction of polyetheramines and benzaldehyde. 5. The primer composition of claim 1 wherein alkoxysilane is a reaction product of gamma-mercaptopropyltrimethoxysilane and hexamethylene diisocyanate(HDI) biuret. 6. The primer composition of claim 1 wherein the diglycidyl ether of bisphenol A is present at 4-8 wt %. 7. The primer composition of claim 1 wherein the diglycidyl ether of bisphenol A is present at 5-7 wt %. 8. The primer composition of claim 1 wherein the catalyst is a non-tin catalyst.
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Classifications
containing silicon · CPC title
formed by oligomerisation of mixtures of aliphatic and/or cycloaliphatic isocyanates or isothiocyanates with aromatic isocyanates or isothiocyanates · CPC title
containing one nitrogen atom in the ring · CPC title
containing alkylene polyphenyl groups · CPC title
- C08G18/3256Primary
Reaction products of polyamines with aldehydes or ketones · CPC title
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Frequently asked questions
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- What does patent US11697704B2 cover?
- A novel primer composition contains aldimine and/or epoxy resins, a process of making such primer to be used in glass bonding adhesive kit.
- Who is the assignee on this patent?
- Ddp Specialty Electronic Materials Us Llc
- What technology area does this patent fall under?
- Primary CPC classification C08G18/3256. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jul 11 2023 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).