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An initial public offering (IPO) or stock launch is a public offering in which shares of a company are sold to institutional investors [1] and usually also to retail (individual) investors. [2] An IPO is typically underwritten by one or more investment banks , who also arrange for the shares to be listed on one or more stock exchanges .
The first industrial commercial cultivation of Eucheuma and Kappaphycus spp. for carrageenan was developed in the Philippines. The global top producers of carrageenan are the Philippines and Indonesia. [4] [5] [6] Carrageenan, along with agar, is used to produce traditional jelly desserts in the Philippines called gulaman. [7]
This was a major step in polymer chemistry, since control over when the polymer was quenched, or terminated, was generally not a controlled step. With this discovery, the list of potential applications expanded dramatically. [7] Today, living polymerizations are used widely in the production of many types of polymers or plastics.
Sealant products manufactured with silyl-modified polymers generally have most of the desirable properties of acrylic- or polyurethane-based products, including high opacity, short drying time, and good paint adhesion, as well as some key properties of silicone-based products, including adhesion to a wider range of substrate materials, higher ...
DuPont has been awarded the National Medal of Technology four times: first in 1990, for its invention of "high-performance man-made polymers such as nylon, neoprene rubber, "Teflon" fluorocarbon resin, and a wide spectrum of new fibers, films, and engineering plastics"; the second in 2002 "for policy and technology leadership in the phaseout ...
Tom Brady has stepped out in style!. The former NFL quarterback, 47, arrived for his commentary debut at the 2025 Super Bowl in New Orleans on Sunday, Feb. 9 with a major piece of bling on his ...
The bulk polymerization is limited to a maximum of 5% ethene as comonomer due to a limited solubility of the polymer in the liquid propene. In the slurry polymerization, typically C4–C6 alkanes (butane, pentane or hexane) are utilized as inert diluent to suspend the growing polymer particles. Propene is introduced into the mixture as a gas.
For the production of sutures, polydioxanone is generally extruded into fibers, however care should be taken to process the polymer to the lowest possible temperature, in order to avoid its spontaneous depolymerization back to the monomer. The ether oxygen group in the backbone of the polymer chain is responsible for its flexibility.