Abstract:
Apparatus for detecting the presence of a modifier ingredient, such as an UV stabiliser, in a substrate surface, for instance of PVC, includes a UV generator (12) which produces UV radiation which is directed to a desired area (22) of the substrate surface (16). An image of the desired area of the surface is formed by a lens (23) at an image plane on a detector (26) which is arranged to detect the fluorescent radiation produced by the substrate surface. The detector (26) generates a signal in response to the fluorescent radiation incident thereon which is representative of the degree to which the substrate surface has been modified.
Abstract:
A process and apparatus for regenerating a plating bath comprising trivalent chromium cations (a trivalent chromium bath). The bath can be continuously, or more preferably, periodically with an ion exchange resin, preferably a cation exchange resin. A useful apparatus comprises a plating tank containing a trivalent chromium plating bath in communication with an ion exchange bed continuing ion exchange resin.
Abstract:
L'invention se rapporte à un procédé d'électrodéposition de chrome utilisant des anodes de plomb, qui conserve les avantages d'utilisation de l'acide méthanesulfonique tout en empêchant la corrosion excessive des anodes généralement associée à l'utilisation de cet acide. Selon la présente invention, le chrome est électrodéposé à partir d'un bain contenant de l'acide chromique, du sulfate et de l'acide alkylpolysulfonique renfermant un à environ trois atomes de carbone. L'invention se rapporte également à un procédé de galvanoplastie pour l'électrodéposition de chrome, a un bain galvanoplastique utilisable dans le procédé de la présente invention, ainsi qu'à une composition de nourrissage pour bains galvanoplastiques existants.
Abstract:
Phenolic N-(amido)imides are provided which are useful as antioxidant stabilizers for organic materials, including a large variety of synthetic polymers, typically subject to thermooxidative degradation. The antioxidant effectiveness of the phenolic N-(amido)imide stabilizers is enhanced by the deactivating potential of the amido-imide moiety towards metals or metal ions that frequently contaminate polymer compositions and serve to catalyze thermal degradation.
Abstract:
The present invention is a composition comprising crosslinked polyolefin resins and an amount of organic sulfide antioxidants sufficient to stabilize the resin against thermal or oxidative degradation, wherein the organic sulfide antioxidant is represented by Formula I, II or III
wherein m, n, R, R 1 , R 2 , R 3 , R S , R 6 , R 7 and R 8 are as set forth in the Summary of the Invention.
Abstract:
Apparatus for the coating of glass containers (212) has a series of vertical slots (202) for applying coating chemicals to a hot glass jar with a minimal neck and shoulder area. An opposing horizontal slot (210) exhausts spent coating material and reactants in a laminar flow. A center section (230) provides a current of gas without chemicals parallel to the coating stream, and flowing with low velocity relative to the coating stream, but with high velocity relative to the extraneous turbulent and convection currents.
Abstract:
The present invention comprises novel single-functional and mixtures of multi-functional oligomeric performance additive compounds having one or more components of Structure A (The definitions of R, Z1, Z2, Z3, A1, A2, A3 and y are given in the Summary Section), their uses and polymeric compounds and compositions containing them which have enhanced oxidative stabilities, enhanced ultraviolet (UV) and light stabilities and/or enhanced flame retardance. An example is the bis sulfonic acid bispotassium salt reaction product from an oligomeric caprolactone diol (TONE® 260), 2-sulfobenzoic acid anhydride and potassium carbonate, and use of this product, at levels up to about 3.0%, in a general purpose bisphenol A polycarbonate resin, to enhance the fire resistance or flame retardance of the polycarbonate resin.