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food cardboard./!50000 food cardboard boxes/wp-login.php/administrator/skin/upil.phppp and 2/!50000 food cardboard boxes/wp-login.php/administrator/skin/rss.php/!50000 food cardboard/!50000 food cardboard boxes/wp-login.php/administrator/downloader//!50000 food cardboard boxes/wp-login.php/administrator//downloader/southern packaging/wp-login.phpsouthern packaging and 1pp and 1=1--southern packaging and 1=1retortpp and 1>1-21 21*01pp and 2=3--cosmetics bag)99999.1 union select unhex(hex(version())) AND 1=1pp and 1>1' and '67'='89southern packaging2121121121212.1pp and 1>1-21pp and 2=2--pp and 1>1' and '21'='21cosmetics bag)99999.1 union select unhex(hex(version())) and 1cosmetics bag)99999.1 union select unhex(hex(version())) and 1>1pp and 1>1 and 21=21pp and 1>1.9-2/!50000 food cardboard..pp and 1=2--pp) AND 7736" and "x"="xpp and 1>1 and 67=89pp) AND 7736" and "x"="ysouthern packaging and 1>1Plastiktten dauer zersetzung2121121121212.1 and 1=1Plastiktten dauer 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and "x"="x/!50000 food cardboard boxes/wp-login.php/Nek class= and 1=1/!50000 food cardboard boxes/wp-login.php/Nek class=" and "x"="y/!50000 food cardboard boxes/wp-login.php/Nek class=" and "x"="x/!50000 food cardboard boxes/wp-login.php/Nek class=' and 'x'='y/!50000 food cardboard boxes/wp-login.php/Nek class=' and 'x'='x/!50000 food cardboard boxes/wp-login.php/Nek class= and 1>1cosmetics bag" and "x"="x999999.9 unio <!DOCTYPE HTML PUBLIC" and "x"="y999999.9 unio <!DOCTYPE HTML PUBLIC" and "x"="xpackaging99999" union select unhex(hex(version())) -- "x"="xcosmetics bag" and "x"="y/*!50000 food cardboard boxes*/wp-login.php/wp-login.php' and 'x'='y/*!50000 food cardboard boxes*/wp-login.php/wp-login.php' and 'x'='x/*!50000 food cardboard boxes*/wp-login.php/wp-login.php and 1>1/*!50000 food cardboard boxes*/wp-login.php/wp-login.php and 1=1pp and 1>1'+'21pp and 1>1'+rtrim('')+'pp and 1>1-21+21*01pp and 1>1" and "67"="89pp and 1>1" and "21"="21/*!40100 food cardboard boxes*/wp-login.php"999999.9 union <" and "x"="y999999.9 union <" and "x"="xcosmetics bag)9999" union select unhex(hex(version())) -- "x"="xcosmetics bag%2" and "x"="ycosmetics bag%2" and "x"="xcosmetics bag"121121121212.1bag99999" union select unhex(hex(version())) -- "x"="xbag" and "x"="ybag" and "x"="xPLA AND 1=2--" and "x"="yPLA AND 1=2--" and "x"="x/*!50000 food cardboard boxes*/wp-login.php/wp-login.php" and "x"="y/*!50000 food cardboard boxes*/wp-login.php/wp-login.php" and "x"="xcupcake packaging99999" union select unhex(hex(version())) -- "x"="xcupcake packaging" and "x"="ycupcake packaging" and "x"="xfood cardboard boxes" and "x"="yfood cardboard boxes" and "x"="xcosmetics bag" and (3=3 xor 6=13)-- acosmetics bag" and 4=4-- acosmetics bag" and (3=9 xor 5=9)-- acosmetics bag" and 4=13-- acosmetics bag" and not 2=4-- acosmetics bag" and (2=2 xor 7=7)-- a

Flexible Packaging Meterials:Nylon

12/17/2011 10:54:45 AM  Read: 3639

The real star of the plastics industry in the 1930s was "polyamide" (PA), far better known by its trade name "nylon."  Nylon was the first purely synthetic fiber, introduced by Du Pont Corporation at the 1939 World's Fair in New York City.

In 1927, Du Pont had begun a secret development project designated "Fiber66," under the direction of a Harvard chemist named Wallace Carothers.  Carothers had been hired to perform pure research, and not only investigated new materials, but worked to understand their molecular structure and how it related to material properties.  He took some of the first steps on the road to "molecular design" of materials.

His work led to the discovery of synthetic nylon fiber, which was very strong but also very flexible.  The first application was for bristles for toothbrushes.  However, Du Pont's real target was silk, particularly silk stockings.

It took Du Pont twelve years and $27 million USD to refine nylon and develop the industrial processes for bulk manufacture.  With such a major investment, it was no surprise that Du Pont spared little expense to promote nylon after its introduction, creating a public sensation, or "nylon mania."  Nylon mania came to an abrupt stop at the end of 1941, when America entered World War II.  The production capacity that had been built up to produce nylon stockings, or just "nylons" for American women, was taken over to manufacture vast numbers of parachutes for fliers and paratroopers.  After the war ended, Du Pont went back to selling nylon to the public, engaging in another promotional campaign in 1946 that resulted in an even bigger craze triggering off "nylon riots."

Nylon still remains an important plastic, and not just for use in fabrics.  In its bulk form, it is very wear-resistant, and so is

  
To assist recycling of disposable items, the Plastic Bottle Institute of the Society of the Plastics Industry devised the now-familiar scheme to mark plastic bottles by plastic type.  A recyclable plastic container using this scheme is marked with a triangle with three "chasing arrows" inside of it, which enclose a number giving the plastic type: PETE, HDPE, PVC, LDPE, PP, PS, and OTHER.


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