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Secondary direct food additives – components that are added to the food due to food treatment like treating food with ionic resins, solvent extraction; Indirect food additives – substances that may come into contact with food as part of packaging or processing equipment, but are not intended to be added directly to food; The food contact ...
The purchase price was $470 million on a cash and debt-free basis. It provided BASF with a range of water-based resins that complements its portfolio of high solids and UV resins for the coatings and paints industry and strengthened the company's market presence, particularly in North America.
UV stabilizers in plastics usually act by absorbing the UV radiation preferentially, and dissipating the energy as low-level heat. The chemicals used are similar to those in sunscreen products, which protect skin from UV attack. They are used frequently in plastics, including cosmetics and films. Different UV stabilizers are utilized depending ...
A photopolymer or light-activated resin is a polymer that changes its properties when exposed to light, often in the ultraviolet or visible region of the electromagnetic spectrum. [1] These changes are often manifested structurally, for example hardening of the material occurs as a result of cross-linking when exposed to light.
Polyurethane dispersion, or PUD, is understood to be a polyurethane polymer resin dispersed in water, rather than a solvent, although some cosolvent may be used.Its manufacture involves the synthesis of polyurethanes having carboxylic acid functionality or nonionic hydrophiles like PEG (polyethylene glycol) incorporated into, or pendant from, the polymer backbone. [1]
This allows for the ultraviolet light to penetrate into the resin, then after the layer has hardened, the build plate can move away pulling the hardened resin away from the FEP film. The plastic is useful as a sample holder material in microscopy applications as its refractive index is close to that of water at visible wavelengths, [ 9 ] [ 10 ...
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