Two-part curable composition
AssigneeToagosei Co., Ltd.
InventorsKenichi ISHIZAKI, Yushi ANDO
Life of this patent
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Abstract
The two-part curable composition has excellent curability, and exhibits flexibility and adhesion durability. The two-part curable composition includes 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.
Claims16
A two-part curable composition comprising a first reagent containing at least a Component (a) shown below and a second reagent containing at least a Component (c) shown below, in which Components (b) and (d) shown below are each contained in at least one of the first and second reagents,
- the contents of the Component (b) contained in the first and second reagents being 5-50 parts by mass relative to 100 parts of the Component (a) in terms of the Component (b) contained in the first reagent and being 5-50 parts by mass relative to 100 parts by mass of the Component (c) in terms of the Component (b) contained in the second reagent, and
- the total amount of the Component (d) contained in the first and second reagents being 0.0005-10 parts by mass relative to 100 parts by mass of the Component (c),
- Component (a):
- a 2-cyanoacrylic acid ester;
- Component (b):
- an elastomer;
- Component (c):
- a polymer having a hydrolyzable silyl group;
- and
- Component (d):
- a curing catalyst for the polymer (c).
Dependencies are inferred from the claim text.