Curable composition, sealing material composition, and adhesive composition
A curable composition and composition technology, applied in the direction of adhesives, polyether adhesives, adhesive types, etc., can solve the problems of insufficient weather resistance of cured products, achieve excellent elongation and weather resistance, and operate excellent effect
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[0170] Hereinafter, the present invention will be specifically described based on examples. In addition, this invention is not limited to these Examples. In addition, hereinafter, unless otherwise specified, "part" and "%" mean parts by mass and % by mass.
[0171] The analysis method of the polymer obtained in the production example, the example, and the comparative example, and the evaluation method of the hardened|cured material obtained from the curable composition are described below.
[0172]
[0173] pass 1 The measurement of H-NMR is based on the integrated value of the signal derived from the hydrogen bonded to the double bond in the vicinity of 5.5 ppm and the integration of the signal derived from the hydrogen bonded to the carbon adjacent to the ester group in 3.0 to 4.5 ppm. The ratio of values, and the composition of the polymer, the double bond concentration per unit mass of the polymer.
[0174]
[0175] Using a gel permeation chromatography apparatus (m...
Synthetic example 1
[0208] Synthesis Example 1 (Production of (meth)acrylic polymer A-1)
[0209] ○Polymerization process
[0210] The temperature of a pressurized stirred tank reactor with a capacity of 1000 mL equipped with an oil jacket was maintained at 265°C. Next, keeping the pressure of the reactor constant, 10 parts of tetradecyl acrylate (hereinafter referred to as "TDA") and 2-ethylhexyl acrylate (hereinafter referred to as "HA") as monomers 70 parts, 20 parts of methyl methacrylate (hereinafter referred to as "MMA"), 20 parts of methyl ethyl ketone (hereinafter referred to as "MEK") as a solvent, and di-tert-butyl peroxide (manufactured by NOF) as a polymerization initiator , trade name "PerbutylD", hereinafter referred to as "DTBP") 0.2 part of the monomer mixture is continuously supplied from the raw material tank to the reactor at a constant supply rate (48g / min, residence time: 12 minutes), and from the outlet The reaction liquid corresponding to the supply amount of the monomer ...
Synthetic example 2～4
[0214] Synthesis Examples 2 to 4 (Production of (meth)acrylic polymers A-2 to A-4)
[0215] Using the concentrate obtained after the polymerization step of Synthesis Example 1, the addition amount of the radical generator (PERHEXYL O) in the post-treatment step and the treatment conditions were changed as shown in Table 1. In the same manner, (meth)acrylic polymers A-2 to A-4 were obtained. The properties of each polymer are shown in Table 1.
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