Joe Webster

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Questions related from Joe Webster

Why are Cosmetic and Pharmaceutical Packaging of Light Sensitive Materials Limited by their Inability to Protect the Contents?

Clear and Tinted packaging of cosmetics ,medicine and even oils used in cooking are susceptible to photo-oxidative degradation of the contents. Even food that contains lipids and fatty acids and...

28 December 2023 4,831 5 View

Why are there so many global problems with Medical Plastics and Where are those checks and balances from the Medical industry to protect patients?

We have seen plastic imports like catheters from China that are toxic to patients. We have seen major legal court cases related to hernia mesh, trans vaginal mesh. Threats from polyester urethane...

25 December 2023 6,931 0 View

Why add a chemical to PET preforms for Soda Bottles to control the formation of acetaldehydes during fabrication?

The PET bottle industry use injection molded preforms to blow mold 2 liter and smaller bottles for soda and other drinks including water. Formation of toxic acetaldehyde that is reported to affect...

25 December 2023 8,794 8 View

How to Enhance Thermo-oxidative Stability of Black Pigmented Polypropylene ASTM 150C Oven Stability?

Current limits on both compression molded and injection molded black pigmented polyproylene is 1,000 hours at 150C using ASTM Circ.Oven on suspended plaques. The correlation of conventional O.I.T....

25 December 2023 1,055 0 View

How can we absorb 100% of transmitted Blue/Indigo UVA from 410-450 nm in 30 mil plastic transparent lenses?

The science of blue light wavelengths have received little attention until late. We are speaking of wavelengths from around 400-495nm this also encompasses indigo. However, the most interesting...

25 December 2023 6,487 0 View