Wiederplazierbares druckempfindliches Klebeband und Verfahren zu dessen Herstellung
摘要
A pressure-sensitive adhesive tape or sheet is reliably repositionable by having a plurality of spaced clumps of particles uniformly distributed over at least one surface of the pressure-sensitive adhesive layer with the tips of the clumps of particles being substantially free from adhesive, which particles are smaller than the thickness of the pressure-sensitive adhesive layer. Preferred particles are glass beads which may be from 5 to 15 mu m in diameter when the thickness of the pressure-sensitive adhesive layer is about 25 mu m. Each clump preferably contains from 5 to about 100 particles. The pressure-sensitive adhesive layer can be covered with a carrier web which has a low adhesion surface that is formed with depressions that protect the clumps of particles.
申请公布号
DE69030993(D1)
申请公布日期
1997.08.07
申请号
DE1990630993
申请日期
1990.11.19
申请人
MINNESOTA MINING AND MFG. CO., SAINT PAUL, MINN., US
发明人
CALHOUN, CLYDE D., P.O.B. 33427, ST. PAUL, MN 5513;KOSKENMAKI, DAVID C., P.O.B. 33427, ST. PAUL, MN 5