Water-swellable moisture curing one-component polyurethane sealant
US-2019367663-A1 · Dec 5, 2019 · US
Polyurethane composition with good adhesion to plastics
US12595367B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12595367-B2 |
| Application number | US-202117791265-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jan 11, 2021 |
| Priority date | Feb 3, 2020 |
| Publication date | Apr 7, 2026 |
| Grant date | Apr 7, 2026 |
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Abstract
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A moisture-curing polyurethane composition including (i) at least one linear polymer P1 containing isocyanate groups and having an NCO content in range from 0.3%-3.3% by weight, obtained from reaction of at least one monomeric aromatic diisocyanate and polyether diol having an OH number in range from 5-37 mg KOH/g, (ii) at least one branched polymer P2 containing isocyanate groups and having an NCO content in range from 1%-10% by weight, obtained from reaction of at least one monomeric aromatic diisocyanate and at least one polyether triol having an average OH functionality of at least 2.2 and OH number in range from 16-380 mg KOH/g, (iii) and a content of plasticizers of not more than 15% by weight, based on overall composition, wherein polymers P1 and P2 are present in weight ratio in range from 80/20-95/5, and to the use of composition as elastic adhesive or elastic sealant or elastic coating.
First claim
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The invention claimed is: 1 . A moisture-curing polyurethane composition comprising (i) at least one linear polymer P1 containing isocyanate groups and having an NCO content in the range from 0.3% to 3.3% by weight, obtained from the reaction of at least one monomeric aromatic diisocyanate and a polyether diol having an OH number in the range from 5 to 37 mg KOH/g, (ii) at least one branched polymer P2 containing isocyanate groups and having an NCO content in the range from 1%…
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Chemistry & Metallurgy · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
Operations & Transport · mapped topic
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- What does patent US12595367B2 cover?
- A moisture-curing polyurethane composition including (i) at least one linear polymer P1 containing isocyanate groups and having an NCO content in range from 0.3%-3.3% by weight, obtained from reaction of at least one monomeric aromatic diisocyanate and polyether diol having an OH number in range from 5-37 mg KOH/g, (ii) at least one branched polymer P2 containing isocyanate groups and having an…
- Who is the assignee on this patent?
- Sika Tech Ag
- What technology area does this patent fall under?
- Primary CPC classification C08G18/7671. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Apr 07 2026 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).