Storage-Stable 1K Spray Adhesives Based on Polyurethane Dispersions
US-2024101879-A1 · Mar 28, 2024 · US
Adhesive, laminated film, and production method for laminated film
US2021002530A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021002530-A1 |
| Application number | US-201916982721-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 19, 2019 |
| Priority date | Mar 23, 2018 |
| Publication date | Jan 7, 2021 |
| Grant date | — |
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Abstract
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Provided are an adhesive including a polyisocyanate composition (X) containing a polyisocyanate (A), and a polyol composition (Y) containing a tertiary amine compound (B) having plural hydroxyl groups, a polyol (C), and an aliphatic cyclic amide compound (D), as essential components, a laminated film using the adhesive, and a method for producing a laminated film including a step of separately applying two components, which includes bringing a polyisocyanate composition (X) containing a polyisocyanate (A) that is applied onto one base material into contact with a polyol composition (Y) containing a tertiary amine compound (B) having plural hydroxyl groups, a polyol (C), and an aliphatic cyclic amide compound (D) that is applied onto the other base material, and performing pressure-bonding.
First claim
Opening claim text (preview).
1 . An adhesive comprising: a polyisocyanate composition (X) containing a polyisocyanate (A); and a polyol composition (Y) containing a tertiary amine compound (B) having plural hydroxyl groups, a polyol (C), and an aliphatic cyclic amide compound (D), as essential components. 2 . The adhesive according to claim 1 , wherein the polyol (C) is a polyester polyol, a polyester urethane polyol, a polyether urethane polyol, a polyether polyol, or a castor oil-based polyol. 3 . The adhesive according to claim 1 , wherein an amine value of the adhesive is in a range of 0.5 to 40 mgKOH/g. 4 . The adhesive according to claim 1 , wherein the aliphatic cyclic amide compound (D) is selected from the group consisting of δ-valerolactam, ε-caprolactam, ω-enanthollactam, η-capryllactam, and β-propiolactam. 5 . The adhesive according to claim 1 , wherein a mass proportion of the polyol composition (Y) when a mass content of the polyisocyanate composition (X) is taken as 100 is in a range of 10 to 150. 6 . A laminated film comprising: an adhesive cured between a first base film and a second base film, wherein the adhesive is the adhesive according to claim 1 . 7 . A method for producing a laminated film in which the adhesive according to claim 1 is applied on a base material, the method comprising a step of separately applying two components, which comprises bringing a polyisocyanate composition (X) containing a polyisocyanate (A) that is applied onto one base material in contact with a polyol composition (Y) containing a tertiary amine compound (B) having plural hydroxyl groups, a polyol (C), and an aliphatic cyclic amide compound (D) that is applied onto the other base material and performing pressure-bonding.
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Classifications
having nitrogen · CPC title
bi-axially · CPC title
Adhesive articles, e.g. adhesive tapes · CPC title
2 layers · CPC title
Medical packaging · CPC title
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Frequently asked questions
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- What does patent US2021002530A1 cover?
- Provided are an adhesive including a polyisocyanate composition (X) containing a polyisocyanate (A), and a polyol composition (Y) containing a tertiary amine compound (B) having plural hydroxyl groups, a polyol (C), and an aliphatic cyclic amide compound (D), as essential components, a laminated film using the adhesive, and a method for producing a laminated film including a step of separately …
- Who is the assignee on this patent?
- Dainippon Ink & Chemicals
- What technology area does this patent fall under?
- Primary CPC classification C09J175/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Jan 07 2021 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).