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2. Chain extender - Wikipedia

   en.wikipedia.org/wiki/Chain_extender

   At or near the final stages of production, the material is treated with a chain extender. Typically, chain extenders are bifunctional, i.e., they have two functional groups, which can link together two polymers. Representative classes of chain extenders are diglycidyl ethers, diols, diamines, or dianhydrides. Chain extenders are often applied ...

3. Gold-filled jewelry - Wikipedia

   en.wikipedia.org/wiki/Gold-filled_jewelry

   This abbreviation is incompatible with FTC guidelines, which require clear labeling of the gold content and fineness (e.g., 1/20 14K GF). [3] Most high quality gold-filled pieces have the same appearance as high carat gold, and gold-filled items, even with daily wear, can last 10 to 30 years though the layer of gold will eventually wear off ...

4. Colored gold - Wikipedia

   en.wikipedia.org/wiki/Colored_gold

   White gold is an alloy of gold and at least one white metal (usually nickel, silver, platinum or palladium). [4] Like yellow gold, the purity of white gold is given in karats. White gold's properties vary depending on the metals used and their proportions. A common white gold formulation consists of 90% wt. gold and 10% wt. nickel. [3] Copper ...

5. AOL.com - News, Sports, Weather, Entertainment, Local & Lifestyle

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   AOL latest headlines, entertainment, sports, articles for business, health and world news.

6. Fewer women will serve on Capitol Hill, but they’re setting ...

   www.aol.com/fewer-women-serve-capitol-hill...

   The new year brings a mixed picture for women’s political representation – the highest glass ceiling in American politics remains intact, but female governors and state legislators are setting ...

7. What Democrats want Biden to do on student loans before ...

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   Selena Gomez hits the red carpet in all-white satin suit, her diamond engagement ring. Entertainment. People. Vanessa Williams to miss 'Devil Wears Prada' performances after death of beloved mom.