ApplicationNo. 09/636190 filed on 08/10/2000
US Classes:428/161, With component conforming to contour of nonplanar surface359/529, 3-Corner retroreflective (i.e., cube corner, trihedral, or triple reflector type)359/530, Unitary plate or sheet comprising plural reflecting elements428/166, Interlaminar spaces428/204, Intermediate layer contains particulate material (e.g., pigment, etc.)428/206, Including particulate material428/209, Including metal layer428/210, Including ceramic, glass, porcelain or quartz layer428/424.2, Next to addition polymer of ethylenically unsaturated monomer428/424.4, Ester monomer type (polyvinylacetate, etc.)428/424.8Hydrocarbon polymer (polyethylene, polybutadiene, etc.)
ExaminersPrimary: Nakarani, D. S.
Attorney, Agent or Firm
International ClassesB32B 27/40 (20060101)
G02B 5/124 (20060101)
G02B 5/128 (20060101)
G02B 5/12 (20060101)
AbstractRetroreflective articles having multilayer films are useful for commercial graphics and retroreflective products, such as roll-up signs for highway transportation safety. The articles comprise multilayer films having at least one layer of polyurethane and at least one layer of a copolymer of alkylene and at least one non-acidic, polar co-monomer. Articles having the new multilayer films provide the same or improved performance, are less expensive, and offer improved methods for manufacturing, when compared to prior articles.
Field of SearchHydrocarbon polymer (polyethylene, polybutadiene, etc.)
Next to addition polymer of ethylenically unsaturated monomer
Ester monomer type (polyvinylacetate, etc.)
With component conforming to contour of nonplanar surface
Including ceramic, glass, porcelain or quartz layer
Including particulate material
Including metal layer