申请人:HISAMITSU PHARMACEUTICAL CO., INC.
公开号:EP1676895A1
公开(公告)日:2006-07-05
A pressure-sensitive adhesive composition which comprises three ingredients, i.e., polyisoprene, a styrene/isoprene/styrene copolymer, and solid polyisobutylene, in a proportion of (10-60) / (10-50) / (20-60) by weight and further contains a non-solid isobutylene polymer and a tackifier, characterized in that the amount of the non-solid isobutylene polymer is 1 to 30 pts.wt., excluding 30 pts.wt., per 100 pts.wt. of the sum of the three ingredients, i.e., the polyisoprene, styrene/isoprene/styrene copolymer, and solid polyisobutylene. When used in an adhesive patch for external use on the skin, the composition has satisfactory tackiness regardless of whether the temperature of the surrounding air is high or low, has excellent long-term storage stability, retains the necessary cohesive force, and does not unnecessarily irritate the skin.
一种压敏粘合剂组合物,它包括三种成分,即聚异丁烯、苯乙烯/异戊二烯/苯乙烯共聚物和固体聚异丁烯,其重量比例为(10-60)/(10-50)/(20-60),并进一步含有非固体异丁烯聚合物和增粘剂,其特征在于,非固体异丁烯聚合物的量为 1 至 30 pts.wt、不包括三种成分(即聚异戊二烯、苯乙烯/异戊二烯/苯乙烯共聚物和固体聚异丁烯)之和每 100 pts.wt. 30 pts.wt.。当用于皮肤外用粘贴剂时,无论周围空气的温度是高是低,该组合物都具有令人满意的粘性,具有极佳的长期储存稳定性,保持必要的内聚力,并且不会对皮肤产生不必要的刺激。