Abstract:
A reworkable high temperature adhesive, comprising the reaction product of (a) a thermoplastic adhesive selected from the group consisting of polyetherimides, polyamide-imides, polysulfones, polyethersulfones, silicon-carbon thermosets, polyphenylene sulfides and mixtures thereof; (b) a metal acetonate; (c) an epoxy resin; (d) a crosslinker; (e) and a catalyst.
Abstract:
In a method for cleaning using terpene compositions, the generation of harmful precipitates is substantially eliminated or significantly reduced by adding a polar solvent, such as isopropyl alcohol, to the terpene composition. One to twenty percent of the cleaning composition should be alcohol, although it is preferred that it be in the five to fifteen percent range. The upper limit reflects primarily the desire to reduce the flammability of the solvent. Alternatively, the electronic devices can be rinsed with a terpene, alcohol mixture, but this alternative is much less preferred because of the flammability problem.
Abstract:
Silicone resin is used by adding, to the uncured silicone resin, platinum suspended in a liquid carrier which is miscible in the silicone resin, the liquid carrier being selected from the group consisting of silicone oil and liquid hydrocarbon materials. The platinum preferably consists of particles of essentially pure platinum, each particle having a diameter of less than ten microns. The ratio of the platinum to the silicone resin is preferably in the range of three to ten parts per million.
Abstract:
Devices are described in which certain crosslinked silicone polymers are incorporated. These polymers have various functions such as encapsulating agents, surface protective agents or agents to index match optical components (e.g. optical fiber, optical waveguide, etc.) to other optical devices or articles. The polymer is a vinyl-terminated dimethyldiphenylsiloxane copolymer crosslinked with tri- or tetrafunctional silanes in the presence of a platinum catalyst. The phenyl group content of the crosslinked silicone copolymer is adjusted to change the index of refraction of the polymer to the optimum for the particular application contemplated. Polymer preparation procedures are described which yield good optical quality for the polymer as well as optimum physical and chemical properties.
Abstract:
An electronic device employs as a dielectric (17) a silicone resin consisting essentially of (a) about twenty-one to twenty-five percent by weight of a silicone resin consisting essentially of dimethylsiloxane, and/or dimethylmethylphenylsiloxane, and/or dimethyl-diphenylsiloxane, (b) about seventy to eighty percent by weight of a silica filler, (c) about 0.5 to 0.7 percent by weight of a tin catalyst, and (d) about 0.057 to 0.26 percent by weight of copper (II) benzoylacetonate.
Abstract:
An electronic device such as an integrated circuit is encapsulated within a silicone resin formulation having a protonated heterocyclic compound contained therein. The compound complexes with free anionic contaminants to form a non-migratory, non-corrosive protonated heterocyclic compound-anion complex, thereby preventing anionic attack of metallic circuit elements.
Abstract:
An electronic device such as an integrated circuit is encapsulated with a silicone resin formulation comprising a polysiloxane having a cryptate ether as part of the backbone of the polymer chain for preventing migration of cations, e.g., sodium and potassium.
Abstract:
Methods of applying Lotus Effect materials as a (superhydrophobicity) protective coating for external electrical insulation system applications, as well as the method of fabricating/preparing Lotus Effect coatings are discussed. Selected inorganic or polymeric materials are applied on the insulating material surface, and stable superhydrophobic coatings can be fabricated. Various UV stabilizers and UV absorbers can be incorporated into the coating system to enhance the coating's UV stability. Other aspects, features, and embodiments are also discussed and claimed.
Abstract:
The present invention is a method of applying Lotus Effect materials as a (superhydrophobicity) protective coating for external electrical insulation system applications, as well as the method of fabricating/preparing Lotus Effect coatings. Selected inorganic or polymeric materials are applied on the insulating material surface, and stable superhydrophobic coatings can be fabricated. Various UV stabilizers and UV absorbers can be incorporated into the coating system to enhance the coating's UV stability.
Abstract:
Polymer composites and methods of making the polymer composites are presented. A representative polymer composite includes a polymer resin and a conductive material, wherein the polymer composite is characterized by a dielectric constant greater the 200. A representative method of making the polymer composite can be broadly summarized by the following steps: providing a polymer resin and a conductive material; mixing the polymer resin and the conductive material; and forming the polymer composite, wherein the polymer composite is characterized by a dielectric constant greater than 200.