Nylon was first used commercially in a nylon- bristled toothbrush in ,   followed more famously in women's stockings or "nylons" which were shown at the New York World's Fair and first sold commercially in The production of nylon required interdepartmental collaboration between three departments at DuPont:
It was once widely used in water bottles, but concerns about leaching of unreacted monomer bisphenol-A, an endocrine disrupter has largely suppressed this market. Others include pesticide and fungicide residues, and industrial chemicals such as polychlorinated biphenols PCBs. The high tensile strength is due in part to the extensive hydrogen bonding between adjacent chains. The talk given at the Lute Society meeting in London on 16 April
A variety of plants produce a sap consisting of a colloidal dispersion of cis -polyisoprene. Some believe it is indigenous to Europe, while others think it is an imported instrument. Wikipedia has informative pages on fluorocarbons and on Teflon.
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At about the same time, Giulio Natta Italian made the first isotactic and crystalline polyethylene. Initially he was allowed to focus on pure research, building on and testing the theories of German chemist Hermann Staudinger. It is well established that small aquatic animals such as fish are being seriously affected by such substances in many rivers and estuarine systems, but details of the sources and identities of these molecules have not been identified.
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|Palpator at 01.02.2018 in 17:44|
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|Verheul at 03.02.2018 in 07:08|
she’s insane if she thinks anyone’s gonna last very long when she’s talking to them like that
|Sandlot at 08.02.2018 in 22:22|
Wow yes please. Where can I find a girl that likes to do this?
|Wimples at 13.02.2018 in 21:49|
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|Escalation at 17.02.2018 in 07:19|
"Don't tell Mrs. Davidson."
|Neurath at 21.02.2018 in 23:06|
Shes fucking hot. Who is she?
|Hannibal at 26.02.2018 in 09:06|
|Magnolia at 01.03.2018 in 19:48|
Goodness gracious, if she was wearing jeans, you could put a quarter in the back pocket and tell which side was facing you.
|Demoded at 04.03.2018 in 17:23|
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|Sanctum at 12.03.2018 in 01:17|
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|Burgers at 14.03.2018 in 16:24|
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|Banteng at 23.03.2018 in 00:01|
Sophie!, she's getting better and better!.
|Holdenb at 26.03.2018 in 22:40|
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|Buster at 30.03.2018 in 18:40|
so hot at 2:05
|Alloyed at 08.04.2018 in 09:55|
@OrangeCountyGirls pretends he added it but I can't see it...
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|Yuchen at 23.04.2018 in 01:26|
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|Chamian at 30.04.2018 in 11:50|
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