초록 ▼

An adhesive system having a pressure-sensitive adhesive matrix and dispersed therein particulate solids wherein the adhesive system has a light transmission within the range of 15 to 80 percent transmission, and preferably 25 to 75 percent transmission. The adhesive system may include a coating of u

An adhesive system having a pressure-sensitive adhesive matrix and dispersed therein particulate solids wherein the adhesive system has a light transmission within the range of 15 to 80 percent transmission, and preferably 25 to 75 percent transmission. The adhesive system may include a coating of untilled pressure sensitive material. The particulate solids preferably have a particle size no greater than 300 microns, and may be organic particulate solids, preferably certain polymeric compositions.

대표청구항 ▼

An adhesive system in the form of a sheet or tape comprising a pressure-sensitive adhesive matrix and particulate solids dispersed in said matrix, said matrix having a thickness of from about 25 to about 60 mils, the improvement in which comprising: said particulate solids having a particle size of

An adhesive system in the form of a sheet or tape comprising a pressure-sensitive adhesive matrix and particulate solids dispersed in said matrix, said matrix having a thickness of from about 25 to about 60 mils, the improvement in which comprising: said particulate solids having a particle size of no greater than 300 microns; said particulate solids being present in said matrix in the amount of from about 5 to about 25 weight percent based on total weight of said particulate solids and said matrix; and said particulate solids being polymers derived from ethylenically-unsaturated monomers, said polymers being comprised of at least 60 mole percent of units having the structure of Formula I: [Figure] Formula I wherein R1 is hydrogen or methyl, and R2 is a polar group, whereby said adhesive system transmits light to the extent of from about 15 to about 80 percent transmission. The adhesive system of claim 1 wherein said pressure-sensitive adhesive matrix includes a coating of unfilled pressure-sensitive adhesive material along at least one side thereof.