Tackifier, tackifier for medical or industrial use, adhesive and/or pressure-sensitive adhesive for medical or industrial use, adhesive sheet and/or pressure-sensitive adhesive sheet for medical or industrial use, and pressure-sensitive adhesive tape for medical or industrial use
Provided is a resin acid ester-based tackifier having a good compatibility with a synthetic rubber elastomer, being capable of reducing the melt viscosity of the elastomer, and being capable of imparting excellent adhesive properties and/or pressure-sensitive adhesive properties to the elastomer. Th...
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Zusammenfassung: | Provided is a resin acid ester-based tackifier having a good compatibility with a synthetic rubber elastomer, being capable of reducing the melt viscosity of the elastomer, and being capable of imparting excellent adhesive properties and/or pressure-sensitive adhesive properties to the elastomer. The tackifier is composed of an ester composition characterized by (i) the ester composition comprising 70% by weight or more of a resin acid ester represented by the general formula (1): and (ii) the S′NMR/SNMR ratio of the ester composition being at least 6% in the 1H-NMR spectrum of the ester composition, wherein S′NMR is the total integral value of the proton signal(s) appearing in the region of 6 to 8 ppm and SNMR is the total integral value of all the proton signals appearing over the entire range of the 1H-NMR spectrum. |
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