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Structural pu adhesive for composite bonding
US2016369038A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016369038-A1 |
| Application number | US-201414898916-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 24, 2014 |
| Priority date | Jul 31, 2013 |
| Publication date | Dec 22, 2016 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A new polyurethane (PU) adhesive composition having unique properties in automotive related applications such as composite bonding.
First claim
Opening claim text (preview).
1 . An heat curable adhesive composition comprising a) a poly-phenol compound; b) an encapsulated dimeric isocyanate; c) a catalyst; and d) an amine compound. 2 . The composition of claim 1 , wherein the poly-phenol compound is one selected from Bisphenol A, M, K or derivates thereof. 3 . The composition of claim 1 , wherein the poly-phenol compound is o,o′-diallyl-bisphenol A. 4 . The composition of claim 1 , wherein the composition comprises 0.1 to 80 wt %, based on the total weight of the composition, of the poly-phenol compound. 5 . The composition of claim 1 further comprising a higher functional aliphatic polyol. 6 . The composition of claim 1 wherein the encapsulated dimeric isocyanate is dimeric toluene diisocyanate or dimeric methylene diphenyl diisocyanate or a mixture thereof. 7 . The composition of claim 1 wherein the composition comprises 1 to 80 wt %, based on the total weight of the composition, of the encapsulated dimeric isocyanate. 8 . The composition of claim 1 wherein the catalyst comprises Sn-, Zr-, Ti-, Bi-metallo-organic compound or mixture thereof. 9 . The composition of claim 1 , wherein the catalyst comprises Bi-neodecanoate. 10 . The composition of claim 1 wherein the catalyst is a Sn-, Zr-, Ti- or Bi-metallo-organic compound in combination with chelating ligands. 11 . An adhesive composition comprising a poly-phenol compound, an encapsulated dimeric isocyanate, an amine and a catalyst; wherein the composition has an elastic modulus of above 50 MPa; and wherein the poly-phenol compound is o,o′-diallyl-bisphenol A.
Assignees
Inventors
Classifications
- C08G18/675Primary
Low-molecular-weight compounds · CPC title
from polyethers · CPC title
- C08G18/5024Primary
containing primary and/or secondary amino groups · CPC title
using additives, e.g. absorbing agents · CPC title
of antimony, bismuth or arsenic · CPC title
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- What does patent US2016369038A1 cover?
- A new polyurethane (PU) adhesive composition having unique properties in automotive related applications such as composite bonding.
- Who is the assignee on this patent?
- Dow Global Technologies Llc, Dow Europe Gmbh, Dow Chemical Co
- What technology area does this patent fall under?
- Primary CPC classification C08G18/675. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Dec 22 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).