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2. UV-328 - Wikipedia

   en.wikipedia.org/wiki/UV-328

   UV-328 is a light stabilizer for a variety of plastics and other organic substrates. Its use is recommended for the stabilization of styrene homopolymers and copolymers, acrylic polymers, unsaturated polyesters, polyvinyl chloride, polyolefins, polyurethanes, polyacetals, polyvinyl butyral, elastomers and adhesives. [5]

3. Polymer stabilizer - Wikipedia

   en.wikipedia.org/wiki/Polymer_stabilizer

   Pentaerythritol tetrakis(3,5-di-tert-butyl-4-hydroxyhydrocinnamate): A primary antioxidant consisting of sterically hindered phenols with para-propionate groups. Primary antioxidants (also known as chain-breaking antioxidants) act as radical scavengers and remove peroxy radicals (ROO•), as well as to a lesser extent alkoxy radicals (RO•), hydroxyl radicals (HO•) and alkyl radicals (R•).

4. Photo-oxidation of polymers - Wikipedia

   en.wikipedia.org/wiki/Photo-oxidation_of_polymers

   UV stabilizers, such as benzophenones, work by absorbing the UV radiation and preventing the formation of free radicals. Depending upon substitution, the UV absorption spectrum is changed to match the application. Concentrations normally range from 0.05% to 2%, with some applications up to 5%. Frequently, glass can be a better alternative to ...

5. 2-(2-Hydroxyphenyl)-2H-benzotriazoles - Wikipedia

   en.wikipedia.org/wiki/2-(2-Hydroxyphenyl)-2H...

   UV-360 [dimer linked via methylene group] 1,1,3,3-tetramethylbutyl – 2- ... -2H-benzotriazoles are used as UV stabilizers in lacquers and plastics. [2] References

6. Optical brightener - Wikipedia

   en.wikipedia.org/wiki/Optical_brightener

   These additives are often used to enhance the appearance of color of fabric and paper, causing a "whitening" effect; they make intrinsically yellow/orange materials look less so, by compensating the deficit in blue and purple light reflected by the material, with the blue and purple optical emission of the fluorophore.

7. Photodegradation - Wikipedia

   en.wikipedia.org/wiki/Photodegradation

   Photodegradation of plastics and other materials can be inhibited with polymer stabilizers, which are widely used. These additives include antioxidants, which interrupt degradation processes. Typical antioxidants are derivatives of aniline. Another type of additive are UV-absorbers. These agents capture the photon and convert it to heat.

8. Planters illegally bolted to an L.A. street to deter RV ...

   www.aol.com/news/did-home-depot-staff-bolt...

   The planters were bolted to the city streets in Playa Vista behind a Home Depot in an area popular with people who live in their vehicles. Planters illegally bolted to an L.A. street to deter RV ...

9. 4-tert-Butylcatechol - Wikipedia

   en.wikipedia.org/wiki/4-tert-Butylcatechol

   It is added as a stabilizer and polymerisation inhibitor to butadiene, styrene, [5] vinyl acetate, divinylbenzene [6] and other reactive monomer streams. [7] TBC is also used as a stabilizer in the manufacture of polyurethane foam. [8] It also can be used as an antioxidant for synthetic rubber, polymers and oil derivatives. [7]