摘要:
A new class of polymeric corrosion inhibiting compositions incorporating pendant heterocyclic groups which are surprisingly effective copper corrosion inhibitors are disclosed. The polymers form a protective barrier on metallic components to aqueous systems and remain substantive on metallic surfaces over a wide pH range. Moreover, the polymers are resistant to oxidizing biocides, and are substantially impervious to repeated or prolonged exposure to corrosive agents.
摘要:
In accordance with the present invention, there are provided free-radical polymerizable compositions comprising polycyclic olefins, wherein the polycyclic olefins contain little, if any, cyclopentenyl unsaturation. As a result, these olefins are sufficiently reactive with the propagating free-radicals during cure to provide a highly crosslinked thermoset resin. Moreover, invention compositions comprise high molecular weight polycyclic olefins having low volatility. Accordingly, the observed undesirable weight loss upon cure of prior art thermosetting compositions is considerably reduced. Further provided by the present invention are compositions comprising functionalized polycyclic olefin monomers. These functionalized olefin monomers provide additional benefits such as increased adhesion to a variety of surfaces and greater control over glass transition temperatures.
摘要:
A photo-alignment material useful in liquid crystal alignment films comprises a maleimide-based repeating unit and at least one additional repeating unit, or a maleimide-based repeating unit and at least two additional repeating units. The photo-alignment materials have freely-controllable pretilt angles, and they provide a display quality equivalent or superior to alignment materials made using the conventional rubbing process.
摘要:
A curable composition for encapsulating an electronic component comprises one or more mono- or polyfunctional maleimide compounds, or one or more mono- or polyfunctional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, with a free radical curing agent, and optionally, one or more fillers.
摘要:
A polymer is formed of ethylenically unsaturated monomers including a zwitterionic monomer, an aromatic monomer and a cross-linking monomer. Preferably the crosslinking monomer includes at least one a group containing compound and at least one aliphatic group containing compound. The polymer is water-swellable and a hydrogen has optical and mechanical properties rendering it suitable for use as an intraocular refractive device such as an intraocular lens.
摘要:
A composition which is useful as a material with excellent weatherability, such as paints, printing ink, adhesive, filler, molding material, or resist, and is especially suitable for use in applications such as OPV and coating materials. The composition comprises as an active ingredient a polymer obtained by continuously polymerizing at a high temperature either a polymerizable monomer having a maleimide group and other polymerizable group or a polymerizable monomer having a succinimide group.
摘要:
Thermosetting polymers with high temperature capability and superior oxidative stability for composite and adhesive applications are disclosed. These polymers are ideally suited for adhesives and RTM, resin film infusion, and prepreg methods to make polymer matrix, fiber reinforced composite parts.
摘要:
A curable composition for use in the fabrication and assembly of circuit components and printed wire boards, which may be designed to be reworkable, comprises one or more mono- or polyfunctional maleimide compounds, or one or more mono- or polyfunctional vinyl compounds other than maleimide compounds, or a combination of maleimide and vinyl compounds, with a free-radical initiator or a photoinitiator, and optionally, one or more fillers. The circuit component is formed by applying the curable composition to the printed wire board and curing the composition in situ on the board.