Stock material or miscellaneous articles – Layer or component removable to expose adhesive – Halogen containing compound
Patent
1989-11-20
1992-08-25
Davis, Jenna L.
Stock material or miscellaneous articles
Layer or component removable to expose adhesive
Halogen containing compound
428143, 428147, 428148, 428343, 428354, C09J 702, B32B 308
Patent
active
051417901
ABSTRACT:
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.
REFERENCES:
patent: 3301741 (1967-01-01), Henrickson
patent: 3314838 (1967-04-01), Erwin
patent: 3331729 (1967-07-01), Danielson
patent: 3514326 (1970-05-01), Stow
patent: 3554835 (1971-01-01), Morgan
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patent: 4737112 (1988-04-01), Jin
Calhoun Clyde D.
Koskenmaki David C.
Davis Jenna L.
Griswold Gary L.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Peters Carolyn V.
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