2-cyanoacrylate adhesive composition

US9611378B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9611378-B2
Application numberUS-201515124293-A
CountryUS
Kind codeB2
Filing dateFeb 27, 2015
Priority dateMar 12, 2014
Publication dateApr 4, 2017
Grant dateApr 4, 2017

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  1. Title

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  2. Abstract

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  5. First independent claim

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Abstract

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An adhesive composition is provided which exhibits an excellent adhesion rate on metals and low-polarity thermoplastic elastomers, and is excellent in appearance with no clouding of hardened bodies and is good in storage stability. It is a 2-cyanoacrylate-based adhesive composition which includes (a) a 2-cyanoacrylic acid ester and (b) an onium salt represented by the general formula: C + A − (1) where, in formula (1), C + represents an onium cation, and A − represents a bis(fluorosulfonyl)imide anion.

First claim

Opening claim text (preview).

The invention claimed is: 1. A 2-cyanoacrylate-based adhesive composition which comprises (a) a 2-cyanoacrylic acid ester and (b) an onium salt represented by the following formula (1): C + A −   (1) wherein C + represents an onium cation, and A − represents a bis(fluorosulfonyl)imide anion. 2. The 2-cyanoacrylate-based adhesive composition according to claim 1 , wherein the cation of the onium salt (b) is at least one onium cation selected from a group consisting of a quaternary ammonium cation, an imidazolium cation, a pyridinium cation, and a tertiary sulfonium cation. 3. The 2-cyanoacrylate-based adhesive composition according to claim 1 , wherein the content of the onium salt (b) is 10 to 20,000 ppm relative to 100 parts by mass of the 2-cyanoacrylic acid ester (a). 4. The 2-cyanoacrylate-based adhesive composition according to claim 2 , wherein the content of the onium salt (b) is 10 to 20,000 ppm relative to 100 parts by mass of the 2-cyanoacrylic acid ester (a).

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What does patent US9611378B2 cover?
An adhesive composition is provided which exhibits an excellent adhesion rate on metals and low-polarity thermoplastic elastomers, and is excellent in appearance with no clouding of hardened bodies and is good in storage stability. It is a 2-cyanoacrylate-based adhesive composition which includes (a) a 2-cyanoacrylic acid ester and (b) an onium salt represented by the general formula: C + A − (…
Who is the assignee on this patent?
Toagosei Co Ltd
What technology area does this patent fall under?
Primary CPC classification C08K5/43. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Apr 04 2017 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).