Sustained release pheromone prepn.

摘要

Prepn. comprises a granule of a synthetic resin which is compatible with a sex pheromone, having an average particle size of 0.2-2.5 mm, contg. the sex pheromone. The amt. of sex pheromone contained in the resin is pref. 0.3 micro-g - 3 mg/unit. The evapn. energy of the sex pheromone is 21,000-27,000 cal/mole and the solubility parameter of the sex pheromone is 8-9 cal 1/2 cm power(-)2/3, that of the resin is pref. 8-9.5 cal power 1/2 cm power(-)2/3. and the sex pheromone is pref. an aliphatic cpd. having a mol. wt. of 220-330.