US2016000291A1PendingUtilityA1

Nonwoven articles comprising abrasive particles

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Assignee: PROCTER & GAMBLEPriority: Jul 2, 2014Filed: Jun 30, 2015Published: Jan 7, 2016
Est. expiryJul 2, 2034(~8 yrs left)· nominal 20-yr term from priority
Inventors:Jonathan Javier CalderasAicha DkidakDenis Alfred GonzalesMichael Leslie GroombridgeMartin Ian JamesDavid John PungCharles Allen ReddLaura Marie Tanno-SmithMarcela Victoria Valenzuela
B08B 1/143A47L 13/16C11D 17/049C11D 3/14A47L 13/17A61Q 11/00A61Q 19/00A61K 8/0241A61K 2800/10A61K 2800/28D04H 1/413D06M 23/06D06M 23/08D04H 1/492
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Claims

Abstract

A nonwoven article comprising a web of fibers and abrasive particles, the abrasive particles embedded in the web of fibers, wherein the abrasive particles have a mean solidity below 0.85.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A nonwoven article comprising a web of fibers and abrasive particles, the abrasive particles embedded in the web of fibers, wherein the abrasive particles have a mean solidity below about 0.85. 
     
     
         2 . The article according to  claim 1 , wherein the nonwoven article is dry. 
     
     
         3 . The article according to  claim 1 , wherein the abrasive particles have a mean solidity between about 0.3 and about 0.8. 
     
     
         4 . The article according to  claim 1 , wherein the abrasive particles have a mean form factor between about 0.1 and about 0.6. 
     
     
         5 . The article according to  claim 1 , wherein the abrasive particles have a mean ECD between about 20 and about 1000. 
     
     
         6 . The article according to  claim 1 , wherein the abrasive particles have a mean Shore® D hardness between about 40 and about 90. 
     
     
         7 . The article according to  claim 1 , comprising from about 0.1 to about 10 g of abrasive particles per square meter of the web of fibers. 
     
     
         8 . The article according to  claim 1 , wherein at least about 50% of the abrasive particulate is degradable according to ASTM 6400D. 
     
     
         9 . The article according to  claim 1 , wherein the nonwoven article is made of at least 2 superposing webs of fibers and the abrasive particles are located at the webs interfaces. 
     
     
         10 . The article according to  claim 1 , wherein the particles are embedded within the web of fibers by needle punching of the web after deposition of the particles. 
     
     
         11 . The article according to  claim 1 , wherein the mean ECD of the abrasive particles is from above about 5% to below about 100% of the thickness of the dry substrate. 
     
     
         12 . The article according to  claim 1 , wherein the abrasive particles have a HV Vicker hardness from about 20 to about 100. 
     
     
         13 . The article according to  claim 1 , wherein the abrasive particles comprise from about 0.1 to about 10 grams per square meter of the web of fibers. 
     
     
         14 . The article according to  claim 1 , comprising between 2 and 4 webs of fibers.

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