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2. Tetrazine - Wikipedia

   en.wikipedia.org/wiki/Tetrazine

   1,2,4,5-Tetrazines are very well known and myriad 3,6-disubstituted 1,2,4,5-tetrazines are known. [2] These materials are of use in the area of energetic chemistry. The compound 3,6-di-2-pyridyl-1,2,4,5-tetrazine' [ 3 ] has two pyridine substituents and is of importance as a reagent in Diels-Alder reactions .

3. Biofoam - Wikipedia

   en.wikipedia.org/wiki/Biofoam

   A foam is considered open-celled if at least two of its facets are holes rather than walls. [18] In this case the entirety of the load on the foam is on the cross-beams that make up the edges of the cell. [6] If no more than one of the walls of the cell are holes, the foam is considered closed-celled in nature. [18]

4. Package handle - Wikipedia

   en.wikipedia.org/wiki/Package_handle

   Six 1.5 L water bottles with tape handle. Transparent tape and red foam applied to flat shrink film prior to application to bottles. Subsequent shrinking tightens film and raises handle. Pressure sensitive tape is often used as a handle: filament tape or heavy-duty plastic film backed tapes (polypropylene or polyester). A loop can be applied ...

5. 1,2,3,4-Tetraphenylnaphthalene - Wikipedia

   en.wikipedia.org/wiki/1,2,3,4-Tetraphenylnaphthalene

   1,2,3,4-Tetraphenylnaphthalene is a polycyclic aromatic hydrocarbon commonly prepared in the undergraduate teaching laboratory as an introduction to the Diels-Alder reaction, in this case between benzyne, which acts as the dienophile, (generated in situ) and tetraphenylcyclopentadienone, which acts as the diene. [3]

6. News, Politics, Sports, Mail & Latest Headlines - AOL.com

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

7. Insulating concrete form - Wikipedia

   en.wikipedia.org/wiki/Insulating_concrete_form

   The first expanded polystyrene ICF Wall forms were developed in the late 1960s with the expiration of the original patent and the advent of modern foam plastics by BASF. [citation needed] Canadian contractor Werner Gregori filed the first patent for a foam concrete form in 1966 with a block "measuring 16 inches high by 48 inches long with a tongue-and-groove interlock, metal ties, and a waffle ...