Adhesive composition
AssigneeToagosei Co., Ltd.
InventorsKenichi ISHIZAKI, Yushi ANDO
Life of this patent
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Abstract
Provided is an adhesive composition which can form a cured product that is high in shear adhesion strength, peel adhesion strength and impact adhesion strength and particularly is excellent in cold/hot cycle resistance of adhesion strength. The adhesive composition comprises (a) a 2-cyanoacrylic acid ester, (b) a high molecular-weight component compatible with 2-cyanoacrylic acid ester, (c) a multifunctional 2-cyano-3-vinylacrylic acid ester, and (d) an onium salt represented by the following general formula (1): C+A− (1) wherein, C+ represents an onium cation and A− represents an anion which does not substantially initiate polymerization of the 2-cyanoacrylic acid ester, and the components (a)-(d) are contained in predetermined amounts.
Claims7
An adhesive composition which comprises (a) a 2-cyanoacrylic acid ester, (b) a high molecular-weight component compatible with the 2-cyanoacrylic acid ester, (c) a multifunctional 2-cyano-3-vinylacrylic acid ester having 2 or more 2-cyano-3-vinylacryloyl groups, and (d) an onium salt represented by the following general formula (1):
- C+A− (1)
- wherein, C+ represents an onium cation and A− represents an anion which does not substantially initiate polymerization of the 2-cyanoacrylic acid ester, in which the contents of the components (b), (c), and (d) are from 2 to 50 parts by mass, from 1 to 200 parts by mass, and from 0.01 to 5 parts by mass, respectively, relative to 100 parts by mass of the component (a).
Dependencies are inferred from the claim text.