Structured retroreflective sheeting having a rivet-like connection
First Claim
1. A retroreflective sheeting comprising:
- a) a structured film comprising an array of structured elements; and
b) a sealing film attached to the structured film by a plurality of rivet-like connections, wherein a first side of the sealing film faces the structured elements and a second side faces away from the structured elements, and further wherein each of the rivet-like connections comprises a perforation in the sealing film through which a portion of the structured film protrudes to attach the sealing film to the structured film.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention provides a retroreflective sheeting including a structured film having an array of structured elements and a sealing film attached to the structured film by a plurality of rivet-like connections perforating the sealing film. Preferably, the rivet-like connections form flanges. The preferred sealing film is a thermoplastic polymer with a ductile yield of at least about 20%. The retroreflective sheetings according to the present invention can also include a seal coat located on the sealing film. In some embodiments, the seal coat can be prepared from a seal coat precursor comprising radiation curable components. The present invention also includes methods of manufacturing the various embodiments of the retroreflective sheetings.
-
Citations
47 Claims
-
1. A retroreflective sheeting comprising:
-
a) a structured film comprising an array of structured elements; and b) a sealing film attached to the structured film by a plurality of rivet-like connections, wherein a first side of the sealing film faces the structured elements and a second side faces away from the structured elements, and further wherein each of the rivet-like connections comprises a perforation in the sealing film through which a portion of the structured film protrudes to attach the sealing film to the structured film. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
-
-
30. A retroreflective sheeting comprising:
-
a) a cube-corner film comprising an array of cube-corner elements; and b) a sealing film attached to the cube-corner film by a plurality of rivet-like connections, wherein; (i) each of the rivet-like connections comprises a perforation in the sealing film through which a portion of the cube-corner film protrudes to attach the sealing film to the cube-corner film; and (ii) the sealing film comprises a multiphase styrenic thermoplastic copolymer. - View Dependent Claims (31, 32, 33, 34, 35, 36, 37, 38)
-
-
39. A method of manufacturing retroreflective sheeting comprising:
-
a) providing a structured film comprising an array of structured elements; and b) attaching a sealing film to the structured film by forming a plurality of rivet-like connections between the structured film and the sealing film, wherein the structured film perforates the sealing film to form each of the rivet-like connections. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47)
-
Specification