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US 6,548,164 B1Granted
Removable sheeting
Assignee3M Innovative Properties Company
InventorChester A. Bacon, Jr.
Life of this patent
Estimating the term…
Abstract
The present invention provides improved and novel removable sheeting, having a specular reflective layer, and a pressure sensitive adhesive layer adjacent the specular reflective layer. The adhesive layer of this sheeting includes an organofunctional coupling agent. In preferred embodiments the sheeting is retroreflective and further includes an array of retroreflective elements.
Claims22
Removable retroreflective sheeting, comprising:
- An array of retroreflective elements,
- a specular reflective layer, and
- a pressure sensitive adhesive layer adjacent the specular reflective layer, wherein the adhesive layer comprises an organofunctional coupling agent in a range between 1 and 3% by weight, the adhesion of the adhesive layer exceeding 0.3 kg/cm width when a 2.5 cm strip is peeled at a rate of 30 cm/minute and at a 90 degree angle.
Removable sheeting, comprising:
- A backing layer comprising light transmissive material,
- a specular reflective layer, and
- a pressure sensitive adhesive layer adjacent the specular reflective layer, wherein the adhesive layer comprises an organofunctional coupling agent in a range between 1 and 3% by weight, the adhesion of the adhesive layer exceeding 0.3 kg/cm width when a 2.5 cm strip is peeled at a rate of 30 cm/minute and at a 90 degree angle.
Dependencies are inferred from the claim text.