Aqueous coating composition with improved viscosity stability
US-9816002-B2 · Nov 14, 2017 · US
Adhesive formulation
US11492525B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11492525-B2 |
| Application number | US-201816640760-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 20, 2018 |
| Priority date | Sep 12, 2017 |
| Publication date | Nov 8, 2022 |
| Grant date | Nov 8, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An adhesive composition including an epoxy-based adhesive polymer and a phosphorous element-containing compound; a process for making the adhesive composition; a process for increasing the corrosion resistance property of the adhesive composition; and a process for bonding a metal substrate with the adhesive composition to increase the corrosion resistance of the substrate by at least 40 percent.
First claim
Opening claim text (preview).
What is claimed is: 1. An adhesive composition comprising (I) 40-65 wt % of an epoxy-based adhesive polymer; and (II) a phosphorous element-containing compound, which is a mixture of phosphoethyl methacrylate monoester, phosphoethyl methacrylate diester, phosphoric acid, and methyl methacrylate; and (III) an epoxy curing catalyst. 2. The adhesive composition of claim 1 , wherein the epoxy-based adhesive polymer is a mixture comprising: (a) a curable epoxy compound or a combination of two or more curable epoxy compounds; (b) one or more reactive urethane group- and/or urea group-containing polymers having a number average molecular weight of up to 35,000, at least one polyether and/or diene rubber segment having a weight of at least 1,000 atomic mass units, and capped isocyanate groups, (c) at least one epoxy curing catalyst, and (d) a curing agent. 3. The adhesive composition of claim 1 , wherein the epoxy-based adhesive polymer is bisphenol A diglycidylether. 4. The adhesive composition of claim 1 , wherein the epoxy-based adhesive polymer is a urea toughening polymer. 5. The composition of claim 1 , wherein the amount of epoxy-based adhesive polymer is from about 40 weight percent to about 60 weight percent. 6. The composition of claim 1 , wherein the amount of phosphorous element-containing compound is up to about 20 weight percent. 7. The composition of claim 1 , wherein the amount of phosphorous element-containing compound is from about 0.1 weight percent to about 5 weight percent.
Assignees
Inventors
Classifications
characterised by using adhesives · CPC title
multi-component adhesive · CPC title
- C09J163/00Primary
Adhesives based on epoxy resins; Adhesives based on derivatives of epoxy resins · CPC title
of synthetic resin · CPC title
Phosphorus-containing compounds · CPC title
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Frequently asked questions
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- What does patent US11492525B2 cover?
- An adhesive composition including an epoxy-based adhesive polymer and a phosphorous element-containing compound; a process for making the adhesive composition; a process for increasing the corrosion resistance property of the adhesive composition; and a process for bonding a metal substrate with the adhesive composition to increase the corrosion resistance of the substrate by at least 40 percent.
- Who is the assignee on this patent?
- Ddp Specialty Electronic Materials Us Llc, Ddp Specialty Electronic Mat Us 8 Llc
- What technology area does this patent fall under?
- Primary CPC classification C09J163/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 08 2022 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 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).