US2013183510A1PendingUtilityA1

Diffuse reflector

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Assignee: DU PONTPriority: Jan 12, 2012Filed: Jan 14, 2013Published: Jul 18, 2013
Est. expiryJan 12, 2032(~5.5 yrs left)· nominal 20-yr term from priority
Inventors:Robert Anthony MarinJan Van MeerveldJohn C. JohnstonD. Craig AmisPatrick H. YoungJamie W. RudisillMartin Johan Olof Widenbrant
D04H 1/724G02B 5/0284G02B 5/0268Y10T442/2582G02B 5/021D06N 3/045
45
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Claims

Abstract

The present invention relates to a diffuse reflector comprising a nonwoven sheet of fibers wherein in the nonwoven sheet has a reflectance and a delamination selected from the group consisting of a reflectance of at least about 97.0% and a delamination of at least about 0.18 N/cm, a reflectance of at least about 96.0% and a delamination of at least about 0.49 N/cm, and a reflectance of at least about 95.0% and a delamination of at least about 0.70 N/cm.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A diffuse reflector comprising at least one nonwoven sheet of fibers wherein the nonwoven sheet has no optical brightener coating, has a basis weight of from about 30 gsm to about 275 gsm and has a reflectance and a delamination selected from the group consisting of:
 a reflectance of at least about 97.0% and a delamination of at least about 0.18 N/cm,   a reflectance of at least about 96.0% and a delamination of at least about 0.49 N/cm, and   a reflectance of at least about 95.0% and a delamination of at least about 0.70 N/cm.   
     
     
         2 . The diffuse reflector of  claim 1 , wherein the fibers comprises a polyolefin polymer. 
     
     
         3 . The diffuse reflector of  claim 2 , wherein the polyolefin polymer is polyethylene. 
     
     
         4 . The diffuse reflector of  claim 1 , wherein the fibers are flash spun plexifilamentary fibers. 
     
     
         5 . The diffuse reflector of  claim 1 , wherein the at least one nonwoven sheet has an optical brightener coating.

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