WEST PATERSON, NJ, United States
WEST PATERSON, NJ, United States

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A thermally expandable and electrically conductive material capable of providing lightning strike protection and burn-through resistance, containing electrically conductive fibers; thermally expandable particles; and a curable matrix resin comprising one or more thermoset resins, wherein the electrically conductive fibers and the thermally expandable particles are embedded in the curable matrix resin.


A resin-rich peel ply that does not leave behind residual fibers after peeling and can work well with different resin-based composite substrates. The resin-rich peel ply is composed of a woven fabric impregnated with a resin matrix different from the resin matrix of the composite substrate. The peel ply is designed such that, upon manual removal of the peel ply from the composite substrates surface, a thin film of the peel ply resin remains on the composite substrates surface to create a bondable surface capable of bonding with another composite substrate, but no fibrous material from the woven fabric remains on the same surface.


A resin-rich peel ply that does not leave behind residual fibers after peeling and can work well with different resin-based composite substrates. The resin-rich peel ply is composed of a woven fabric impregnated with a resin matrix different from the resin matrix of the composite substrate. The peel ply is designed such that, upon manual removal of the peel ply from the composite substrates surface, a thin film of the peel ply resin remains on the composite substrates surface to create a bondable surface capable of bonding with another composite substrate, but no fibrous material from the woven fabric remains on the same surface.


Prepregs and composite articles contain resin compositions comprising an epoxy thermosetting resin; and at least two types of interlaminar toughening particles; wherein a first type of interlaminar toughening particles are insoluble in said epoxy thermosetting resin; wherein a second type of interlaminar toughening particles are partially soluble or swellable in said epoxy thermosetting resin.


Patent
Cytec Industries Inc. | Date: 2016-12-27

A method for making engineered crosslinked thermoplastic particles, which are useful for interlaminar toughening of prepregs and composite materials.


Collector compositions C for mineral flotation, which include at least one of a hydroxamic acid A, and/or a salt S of a hydroxamic acid A solubilized in a water-soluble organic solvent L, and processes for using same for recovering sulfide and/or oxide minerals in mineral flotation processes are provided herewith.


Patent
Cytec Industries Inc. | Date: 2017-03-01

An electrically conductive surfacing material capable of providing sufficient conductivity for lightning strike protection (LSP) and/or electromagnetic interference (EMI) shielding is disclosed. The conductive surfacing material is a multi-layered structure having a very thin conductive layer (e.g. solid metal foil) and a resin film formed on at least one surface of the conductive layer. The resin film is formed from a curable resin composition containing an epoxy novolac resin, a tri-functional or tetra-functional epoxy resin, ceramic microspheres, a latent amine-based curing agent, particulate inorganic fillers; and a toughening component. Optionally, the resin film further includes conductive additives to increase electrical conductivity of the surfacing material. The resin film exhibits high T_(g )as well as high resistance to paint stripper solutions. Furthermore, the conductive surfacing material is suitable for co-curing with fiber-reinforced resin composite substrates.


Patent
Cytec Industries Inc. | Date: 2016-12-19

A gas phase surface treatment for treating carbon fiber including (a) exposing a carbon fiber to a gaseous oxidizing atmosphere to form a modified carbon fiber with an oxidized fiber surface; followed by (b) exposing the oxidized fiber surface to a gaseous nitrogen-containing atmosphere to form a modified carbon fiber with a nitrogen-enriched surface, wherein the nitrogen-enriched surface exhibits an increase in surface nitrogen to surface carbon (N/C) ratio as compared to the surface of the carbon fiber prior to exposure at (a). Steps (a) and (b) are carried out continuously without any additional intervening surface treatment.


Patent
Cytec Industries Inc. | Date: 2017-03-14

A method for making a composite structure with a surfacing film thereon. The surfacing film is co-cured with fiber-reinforced resin composite materials. The surfacing film is formed from a curable resin composition containing an epoxy novolac resin, a tri-functional or tetra-functional epoxy resin, ceramic microspheres, an amine-based curing agent, particulate inorganic fillers; and a toughening component. The surfacing film exhibits high T_(g )and high cross-linked density after curing, as well as high resistance to paint stripper solutions.


Patent
Cytec Industries Inc. | Date: 2017-07-05

The invention relates to a process for reducing aluminosilicate containing scale in a Bayer process, comprising the steps of identifying a Bayer process equipment surface that is subject to scale formation during the Bayer process; contacting the identified Bayer process equipment surface with an amount of a scale inhibiting composition effective to form a treated surface that is more resistant to scale formation upon subsequent contact with a Bayer process stream than an otherwise comparable untreated surface; wherein the scale inhibiting composition comprises a liquor L which is an aqueous solution of one or more water-soluble salts having at least a mass fraction of 0.004 % of total dissolved salts, or an aqueous solution having a pH of at least 11.0, a silicon-containing compound I having one or more Si(OR)_(n) groups; wherein n is an integer from 1 to 3; and R is H, C_(1)- to C_(20)- alkyl, C_(6)- to C_(12)- aryl, C_(7)- to C_(20)- aralkyl, C_(2)- to C_(20)- alkenyl, any of which organic groups may be substituted, a metal ion of groups 1 or 2 of the periodical system of the elements in the 2007 numbering, or NR^(I)_(4); where each R^(I) is independently chosen from H, C_(1)- to C_(20)- alkyl, C_(6)- to C_(12)- aryl, C_(7)- to C_(20)- aralkyl, C_(2)- to C_(20)- alkenyl, any of which organic groups may be substituted; and inorganic particles P, and contacting the treated surface with the Bayer process stream.

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