摘要:
Provided is a curable resin composition which exhibits excellent curability and is good in storage stability. The curable resin composition comprises (a) a polymer having a hydrolyzable silyl group, (b) an acid catalyst, and (c) an onium salt represented by the following general formula (1): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒC + A - –ª–ª–ª€ƒ€ƒ€ƒ€ƒ€ƒ(1) wherein C + is an onium cation, and A - is a hydrogen sulfate anion, a hydrogen sulfite anion, a sulfonate anion represented by R 1 SO 3 - wherein R 1 represents an alkyl group, perfluoroalkyl group, cycloalkyl group, vinyl group, aryl group, perfluoroaryl group, aralkyl group or halogen atom; or a bis(substituted sulfonyl)imide anion represented by (R 2 SO 2 ) 2 N - wherein R 2 represents an alkyl group, perfluoroalkyl group, or aryl group; tetrafluoroborate anion, or hexafluorophosphate anion.
摘要翻译:本发明提供固化性优异,保存稳定性良好的固化性树脂组合物。 固化性树脂组合物含有(a)具有水解性甲硅烷基的聚合物,(b)酸催化剂,和(c)下述通式(1)所示的鎓盐。[化学式1] 其中C +是鎓阳离子,A - 是硫酸氢根阴离子,亚硫酸氢根阴离子, 由R 1 SO 3 - 表示的磺酸盐阴离子,其中R 1表示烷基,全氟烷基,环烷基,乙烯基,芳基,全氟芳基,芳烷基或卤素原子; 或由(R 2 SO 2)2 N - 表示的双(取代磺酰基)酰亚胺阴离子,其中R 2表示烷基,全氟烷基或芳基; 四氟硼酸根阴离子或六氟磷酸根阴离子。
摘要:
Provided is an adhesive composition which is flexible, and exhibits excellent adhesion durability. The adhesive composition comprises (a) a 2-cyanoacrylic acid ester, (b) a polymer having a hydrolyzable silyl group, (c) an elastomer, and (d) an acid catalyst, in which the contents of the components (b), (c), and (d) are from 5 to 200 parts by mass, from 5 to 50 parts by mass, and from 0.0005 to 0.5 parts by mass, respectively, relative to 100 parts by mass of the component (a). Further preferably, the composition contains 0.001 to 5 parts by mass of (e) an onium salt relative to 100 parts by mass of the component (a).
摘要:
There is provided a one-pack type room-temperature-curable 2-cyanoacrylate based composition having magnetism. The 2-cyanoacrylate based composition having magnetism is characterized by containing (a) a 2-cyanoacrylic acid ester and (b) a magnetic powder dispersible in the 2-cyanoacrylic acid ester, wherein the content of the magnetic powder (b) is 5 to 500 parts by weight relative to 100 parts by weight of the 2-cyanoacrylic acid ester (a). The magnetic powder (b) is preferably a stainless steel.
摘要:
A 2-cyanoacrylate based composition comprising a coloring material which changes its color in response to the curing of 2-cyanoacrylate. The composition is colored and thus has good visibility and is excellent in workability before curing. After curing, it turns colorless or light-colored and provides an article having a good appearance in an adhered or filled portion of the surface of the article.
摘要:
Provided is a 2-cyanoacrylate-based adhesive composition having good storage stability and manifesting an excellent adhesion rate to metals and thermoplastic elastomers. A 2-cyanoacrylate-based adhesive composition characterized in containing a 2-cyanoacrylic acid ester(a) and an onium salt(b) represented by general formula C + A - (1) (In the formula, C + is an onium cation, and A - is a hydrogen sulfate anion, bisulfite anion, sulfonate anion represented by R 1 SO 3 - (where R 1 is an alkyl group, perfluoroalkyl group having 3 to 10 carbon atoms, cycloalkyl group, vinyl group, aryl group, perfluoroaryl group, aralkyl group, or halogen atom), or bis(substituted sulfonyl)imide anion represented by(R 2 SO 2 ) 2 N - (where R 2 is an alkyl group, perfluoroalkyl group, or aryl group).)
摘要:
Provided is a two-part curable composition which has excellent curability, and exhibits flexibility and adhesion durability. The two-part curable composition comprises a first reagent containing at least a 2-cyanoacrylic acid ester and a second reagent containing at least a polymer having a hydrolyzable silyl group, in which an elastomer and a curing catalyst for the above polymer are each contained in at least one of the first and second reagents in predetermined amounts. A preferable curing catalyst is a compound having a metal element and an organic group bonded to the metal element via oxygen, or an acid having a pKa of 4 or lower at 25°C. Preferably, a curing accelerator for 2-cyanoacrylic acid ester is contained in at least one of the first and second reagents.
摘要:
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): €ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒ€ƒC + A - €ƒ€ƒ€ƒ€ƒ€ƒ(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.