Abstract: The present invention is a copolymer containing, as essential structural units, unit A represented by Formula (1) and unit B represented by Formula (2): (wherein R1 and R4 each independently represent a hydrogen atom or a methyl group, and R2 and R3 each independently represent a hydrogen atom or a C1-20 hydrocarbon group, excluding cases where two or more groups of R1 to R3 are hydrogen atoms.) (wherein R5 represents a hydrogen atom or a methyl group, and R6 represents a group selected from the group consisting of C1-20 hydrocarbon groups optionally containing an oxygen atom, C1-20 alkoxy groups, hydrogen atoms, oxygen radicals and hydroxyl groups.

Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazone or oxime curatives.

Abstract: Provided are a fiber-reinforced composite material excellent in heat resistance and strength properties, an epoxy resin composition to obtain the fiber-reinforced composite material, and a prepreg obtained by using the epoxy resin composition. Further provided are a fiber-reinforced composite material having less volatile matters during the curing time, and having excellent heat resistance and strength properties, an epoxy resin composition to obtain the fiber-reinforced composite material, and a prepreg obtained by using the epoxy resin composition. Provided are: an epoxy resin composition for a fiber-reinforced composite material, comprising an amine type epoxy resin [A], an aromatic amine curing agent [B], and a block copolymer [C] having a reactive group capable of reacting with an epoxy resin; a prepreg obtained by impregnating a reinforced fiber with the epoxy resin composition; and a fiber-reinforced composite material obtained by curing the prepreg.

Abstract: An electronic component comprising: a case; a switching mechanism incorporated within the case; an actuator configured to actuate the switching mechanism, the actuator being mounted in the case so as to be displaceable by sliding; and a rubber cap configured to seal a sliding part of the actuator, wherein the rubber cap is made of a hydrin-based rubber.

Abstract: An oleophobic grafted polymer includes a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer. A process for making an oleophobic grafted polymer includes crosslinking a fluoroelastomer with an aminofunctionalized silane and grafting an alkoxysilane-terminated perfluorinated polyether to the crosslinked fluoroelastomer.

Abstract: Provided is a polyalkylene carbonate blend composition containing: aliphatic polycarbonate obtained by reacting carbon dioxide with one or at least two different kinds of epoxide compounds selected from a group consisting of (C2-C10)alkylene oxide substituted or unsubstituted with halogen or alkoxy, (C4-C20)cycloalkylene oxide substituted or unsubstituted with halogen or alkoxy, and (C8-C20)styrene oxide substituted or unsubstituted with halogen, alkoxy, alkyl, or aryl; and poly(D,L-lactide-co-glycolide) (PLGA).

Abstract: There is provided a gypsum dispersant and a gypsum additive that improve the fluidity of gypsum slurry even if gypsum raw materials used are different in quality and that do not induce delay of curing of gypsum slurry. A gypsum dispersant, including: (A) a polycarboxylic acid polymer; and (B) a polymer obtained by a reaction of an alkylene diamine and/or a monoamine and an epihalohydrin as essential components.

Abstract: The invention relates to polymers that can be obtained by polymerizing the monomers (A), (B), and (D), and optionally (C), where (A) is a monomer of formula (I), wherein A stands for C2 to C4 alkylene, B stands for a C2 to C4 alkylene different from A, R stands for hydrogen or methyl, m stands for a number from 1 to 500, n stands for a number from 1 to 500, (B) is an ethylenically unsaturated monomer that contains at least one carboxylic acid function, (C) is optionally a further ethylenically unsaturated monomer different from (A) and (B), (D) is a monomer of formula (II), wherein D stands for C2 to C4 alkylene, E stands for a C2 to C4 alkylene group different from D, F stands for a C2 to C4 alkylene group different from E, R stands for hydrogen or methyl, o stands for a number from 1 to 500, p stands for a number from 1 to 500, q stands for a number from 1 to 500, and wherein the weight fraction of the monomers is 35 to 99% for the macromonomer (A), 0.

Abstract: This invention relates to a composition comprising a multiblock polyolefin represented by the formula: PO—C(R11)(R12)—C(R13)?C(R14)—C(R15)(R16)—PO*, or isomers thereof, wherein R11, R12, R13, R14, R15, and R16, are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; PO and PO* are polyolefins; PO and PO* are each independently a substituted or unsubstituted hydrocarbyl group having 9 to 4000 carbon atoms, provided that at least one of PO and PO* are C20 or greater, said polyolefin having: 1) an internal unsaturation as shown by the 13C NMR peak at between about 128 and about 132 ppm; 2) an Mn ratio “Z”=0.1 to 10 where Z is the Mn (as determined by 13C NMR) divided by Mn (as determined according to Gel Permeation Chromotography using polystyrene standards); and 3) optionally, from 0.3(J) and 0.

Abstract: Disclosed is a novel ternary aliphatic polycarbonate blend derived from carbon dioxide, which is mainly composed of an aliphatic polycarbonate. Also disclosed is a process for producing the ternary aliphatic polycarbonate blend. A methacrylic resin or an aliphatic polyester is incorporated, as a second component, into an aliphatic polycarbonate to produce a blend, and a vinyl resin is added, as a third component, to the blend at a specified ratio, thereby producing a novel ternary aliphatic polycarbonate blend derived from carbon dioxide and having excellent mechanical properties that cannot be achieved by binary blends.

Abstract: The invention provides for the use of copolymers comprising 1 to 99 mol % of structural units of the formula (1) in which R1 is hydrogen or C1-C6-alkyl, A is C2-C4-alkylene groups and B is C2-C4-alkylene groups, with the proviso that A is different than B, and x, y are each independently an integer of 1-100, and 1 to 99 mol % of structural units of the formula (3) in which R6 is hydrogen or C1-C6-alkyl, D is C2-C4-alkylene groups and z is an integer of 1-50, in amounts of 0.01 to 2% by weight, based on the water phase, as gas hydrate inhibitors.

Abstract: The invention relates to the use of polymers, containing between 1 and 100 mol % of structural units of the formula (1), wherein R1 means hydrogen or C1-C6 alkyl, A means C2-C4 alkylene groups, and B means C2-C4 alkylene groups, with the stipulation that A is different from B, and x and y mean an integer from 1 to 100 independent of each other, in amounts of 0.01 to 2 wt % relative to the water phase, as gas hydrate inhibitors.

Abstract: Disclosed are a polyalkylene carbonate and polyolefin-based adhesive member and an adhesive structure including the same and, more particularly, an adhesive member manufactured using a mixed composition including polyalkylene carbonate, polyolefin, an initiator, and a blending aid, wherein an amount of the polyalkylene carbonate is 35 wt % to 65 wt %, a total amount of the initiator, the blending aid, and the polyolefin is 35 wt % to 65 wt %, and the adhesive member has a co-continuous morphology in which at least a portion of each of the polyalkylene carbonate and the polyolefin is exposed on an outer surface of the adhesive member and an adhesive structure including the same.

Abstract: A polymer powder (P) selected from a group consisting of (i) a polymer powder (P1) and (ii) a polymer powder (P2) is provided. The (i) polymer powder (P1) includes a (meth)acrylate-based polymer (A1) having a glass transition temperature of 0° C. or less, and the polymer powder has an acetone-soluble component of 5 mass % or more. The acetone-soluble component has a mass average molecular weight of 100,000 or more. The (ii) polymer powder (P2) has an acetone-soluble component of 2 mass % to 35 mass %, the acetone-soluble component has a mass average molecular weight of 100,000 or more, and has a volume average primary particle size (Dv) of 200 nm or more.

Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23 wt % of the coating. If no viscosity reducing agent is added, then the liquid epoxy resin forms about 51.6 wt % of the coating. If the viscosity reducing agent is added, then the liquid epoxy resin forms about 50.1 wt % of the coating, and the viscosity reducing agent forms about 1.5 wt % of the coating. The hardener forms about 25.4 wt % of the coating.

Abstract: The present invention provides a vulcanized rubber material having improved heat resistance while maintaining ozone resistance of an epihalohydrin rubber, and a rubber composition for vulcanization for producing the same. The invention further provides a vulcanized rubber material and a rubber composition for vulcanization, that can achieve the above objects without using an organonickel compound having a concern about toxicity, or if used, using the same as less as possible. The present invention relates to a rubber composition for vulcanization comprising (a) 100 parts by weight of an epihalohydrin rubber, (b) 0.01 to 0.5 part by weight of a copper salt of dithiocarbamic acid, (c) an acid acceptor, and (d) a polythiol type vulcanizing agent or a polyol type vulcanizing agent, a vulcanized rubber material obtained by vulcanizing the composition, and an automotive rubber part comprising the vulcanized rubber material.

Abstract: There is provided an oil-in-water emulsion composition whose continuous phase is an aqueous phase, but which has a high moisture evaporation suppressing effect and is also superior in feeling, and a method for producing the same. An oil-in-water emulsion composition containing an oily component having an inorganic value of 2500 or less, an organic value of 5000 or less and an IOB value of 0.3 to 0.5, the oil-in-water emulsion composition containing the following components (A) to (C) in an aqueous phase. (A) a polyoxyethylene alkyl or alkenyl ether having alkyl group or alkenyl group having 20 to 24 carbon atoms and an average molar number of ethylene oxide added of 1.5 to 4 (B) a polyhydric alcohol (C) a water-soluble polymer.

Abstract: A dynamically vulcanized alloy contains at least one isobutylene-containing elastomer and at least one thermoplastic resin, wherein the elastomer is present as a dispersed phase of small vulcanized or partially vulcanized particles in a continuous phase of the thermoplastic resin. The dynamically vulcanized alloy also contains an anhydride functionalized oligomer. The alloy maintains a high Shore A hardness value while obtaining improved flowability for processing.

Abstract: Methods for fabricating a random graft PS-r-PEO copolymer and its use as a neutral wetting layer in the fabrication of sublithographic, nanoscale arrays of elements including openings and linear microchannels utilizing self-assembling block copolymers, and films and devices formed from these methods are provided. In some embodiments, the films can be used as a template or mask to etch openings in an underlying material layer.

Abstract: This invention provides Chelating Complex Micelles as a drug carrier. The Chelating Complex Micelles can load drugs without changing their structure, and therefore extend the half-life of drugs in the human body. The chelating complex micelles contain a metal ion core, at least one polymer, and at least one drug molecule. The metal ion is considered as a Lewis acid while polymer chain and drug molecules are referred to as Lewis bases. The drug molecule is linked to the polymer via forming coordinate bonds with metal ion, and then self-assembled to form chelating complex micelles as a drug carrier.

Abstract: The invention relates to a multiblock polyolefin, and methods to make a multiblock polyolefin, represented by the formula (X) or (XII): PO—C(R11)(R12)—C(R13)?C(R14)—C(O)—O—((CR15R16)z—(CR17R18)m—O)n—R19??(X) or PO—C(R11)(R12)—C(R13)?C(R14)—C(O)—O—((CR15R16)z—(CR17R18)mO)n—C(O)—C(R14)?C(R13)—C(R12)(R11)—PO??(XX) wherein R11, R12, R13, and R14 are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; R15, R16, R17, and R18 are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; R19 is a C1 to a C20 substituted or unsubstituted hydrocarbyl group or a hydrogen; z is ?1 to about 5; m is ?1 to about 5; PO is a polyolefin hydrocarbyl group comprising 10 to 4000 carbon atoms; and n is from 1 to about 10,000.

Abstract: The invention relates to a process for preparing a reinforced and reactive thermoplastic composition having a continuous phase which is based on at least one thermoplastic polymer and dispersed in which is a discontinuous phase based on at least one reactive reinforcing agent that may be immiscible with said at least one thermoplastic polymer, and also to a composition obtained by this process.

Abstract: A crosslinkable bioplasticizer is disclosed, a mixture of an epoxy-functional bio-derived plasticizer and an aromatic dianhydride. When heated, the mixture crosslinks, which can be accelerated by the addition of a Lewis Acid metal catalyst. The crosslinked bioplasticizer can be melt compounded into a thermoplastic resin or can be formed in situ in the thermoplastic resin. The crosslinking of the bioplasticizer can reduce blooming of the bioplasticizer to the surface of a plastic article made by extrusion, molding, calendering, or thermoforming techniques.

Abstract: A compatibilizer contains a polymer (A) obtained by reacting a modified olefin-based polymer (a-1) with a polymer (a-2) containing a terminal functional group, wherein the modified olefin-based polymer (a-1) is a polymer modified with from 0.01 to 2 mass % of unsaturated carboxylic acid or a derivative thereof, and the polymer (a-2) is a ring opening polymer or condensation polymer containing a terminal functional group, capable of reacting with the modified olefin-based polymer (a-1), at both ends or one end thereof and has a number average molecular weight from 1,500 to 100,000. This provides an excellent compatibilizer. Particularly, upon melt processing a recovery of a multilayer structure including an EVOH layer and a thermoplastic resin layer, a recycling agent is provided that gives sufficient improvement effects to any of the adhesion of a degraded resin to a screw of a molding machine, the generation of die build-up, the generation of fish eyes, and the decrease in transparency.

Abstract: The invention relates to a multiblock polyolefin, and methods to make a multiblock polyolefin, represented by the formula (X) or (XII): PO—C(R11)(R12)—C(R13)?C(R14)—C(O)—O—((CR15R16)z—(CR17R18)m—O)n—R19??(X) or PO—C(R11)(R12)—C(R13)?C(R14)—C(O)—O—((CR15R16)z—(CR17R18)mO)n—C(O)—C(R14)?C(R13)—C(R12)(R11)—PO??(XX), wherein R11, R12, R13, and R14 are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; R15, R16, R17, and R18 are each independently a substituted or unsubstituted C1 through C4 hydrocarbyl group or a hydrogen; R19 is a C1 to a C20 substituted or unsubstituted hydrocarbyl group or a hydrogen; z is ?1 to about 5; m is ?1 to about 5; PO is a polyolefin hydrocarbyl group comprising 10 to 4000 carbon atoms; and n is from 1 to about 10,000.

Abstract: Powder blends are described comprising blends of particulate water soluble high molecular weight polymer flocculants. The polymer flocculants can include polyethylene oxide, polyacrylamide, copolymers thereof and combinations thereof. The powder blends allows the use of fine powders while reducing potential air quality and safety issues. The powder blends can be used for waste water purification, fiber dewatering, and the like. The powder blends can be diluted by a water dilution flow prior to entering a waste water stream.

Abstract: There is provided an antistatic agent that preserves its antistatic property for a long period of time and has the appearance and the transparency that are not impaired when kneaded into a resin, and a resin composition containing the antistatic agent. An antistatic agent including a block copolymer which is obtained from a reaction product of a polyolefin (a) having one end being acid-modified and a diol and/or a diamine (b) having a polyoxyalkylene chain, and in which a part or all of acid groups remaining in the reaction product is neutralized with an alkaline substance. A thermoplastic resin composition including the antistatic resin. A film or sheet including the thermoplastic resin composition.

Abstract: Multi-piece golf balls having at least one component made of a composition comprising a polymerized substituted imidazolium liquid ionomer are provided. The multi-piece golf ball contains a core, which may have a dual-core construction including a center and surrounding outer core layer or other multi-layered structure. Preferably at least one of the core layers is formed from a composition comprising a rubber material or highly neutralized acid copolymer (HNP) and the liquid ionomer. The resulting golf ball has high resiliency.

Abstract: A polymer that combines high ionic conductivity with the structural properties required for Li electrode stability is useful as a solid phase electrolyte for high energy density, high cycle life batteries that do not suffer from failures due to side reactions and dendrite growth on the Li electrodes, and other potential applications. The polymer electrolyte includes a linear block copolymer having a conductive linear polymer block with a molecular weight of at least 5000 Daltons, a structural linear polymer block with an elastic modulus in excess of 1×107 Pa and an ionic conductivity of at least 1×10?5 Scm?1. The electrolyte is made under dry conditions to achieve the noted characteristics. In another aspect, the electrolyte exhibits a conductivity drop when the temperature of electrolyte increases over a threshold temperature, thereby providing a shutoff mechanism for preventing thermal runaway in lithium battery cells.

Abstract: A process for preparing a nanocomposite includes combining a resin and silsesquioxane; introducing a curing agent to the resin and silsesquioxane to form a composition; and forming a reaction product of the composition to prepare the nanocomposite, wherein a total amount of the silsesquioxane and curing agent in the composition is from 1 wt % to 70 wt %, based on a weight of the composition. Additionally, a process for preparing an article includes combining an epoxy resin and silsesquioxane; introducing a curing agent to the epoxy resin and silsesquioxane to form a composition; and reacting the epoxy resin, silsesquioxane, and curing agent to form the nanocomposite, wherein a molar ratio of a number of moles of an epoxy functional group of the epoxy resin to the sum of the number of moles of the silsesquioxane and curing agent is from 1:1 to 100:1. An article includes the reaction product of the resin, silsesquioxane, and curing agent.

Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomer with a coordination catalyst to form a reactive polymer; and (ii) reacting the reactive polymer with a nitroso compound.

Abstract: A process for the manufacture of copolymers of ethylene and of at least one vinyl ester, comprising the following steps: a) fermentation of renewable starting materials so as to produce at least one alcohol comprising ethanol; b) dehydration of the alcohol obtained so as to produce at least one alkene comprising ethylene and, optionally, purification of the alkene so as to obtain ethylene, c) copolymerization of the ethylene with at least one vinyl ester, d) isolation of the copolymer obtained. Also, copolymers of ethylene and of at least one vinyl ester in which the ethylene is at least partly obtained from renewable starting materials, and to uses thereof.

Abstract: The recycled crumb rubber coating is a corrosion-proof coating for piping and the like. The coating is formed from recycled crumb rubber mixed with an epoxy resin and a hardener. Crumb rubber is first mixed with a liquid epoxy resin. An agent for reducing the viscosity of the liquid epoxy resin may also be added. A hardener is then added to this mixture. Finally, powdered crumb rubber is added and mixed to form the recycled crumb rubber coating. The total crumb rubber forms about 23 wt % of the coating. If no viscosity reducing agent is added, then the liquid epoxy resin forms about 51.6 wt % of the coating. If the viscosity reducing agent is added, then the liquid epoxy resin forms about 50.1 wt % of the coating, and the viscosity reducing agent forms about 1.5 wt % of the coating. The hardener forms about 25.4 wt % of the coating.

Abstract: It is provided an implantable device including a polymer blend that contains a polymer formed of fluorinated monomers and hydrocarbon monomers and another biocompatible polymer.

Abstract: A polymer comprises units derived from ethylene and poly(alkoxide) the polymer having at least 0.15 units of amyl groups per 1000 carbon atoms as determined by 13C Nuclear Magnetic Resonance (NMR).

Abstract: A water swellable rubber composition comprising (a) a non-water swellable base rubber, (b) an ethylene oxide based hydrophilic elastomer having from zero up to and including 20 mole % of a crosslinkable curable functional group, and (c) a water swellable non-elastomeric material. The composition has excellent water swell characteristics under prolonged exposure to high temperature and various electrolyte solutions (strongly saline as well as acid conditions) and is particularly suitable for oil field applications.

Abstract: Redox reactions that occur at the electrodes of batteries require transport of both ions and electrons to the active centers. Reported is the synthesis of a block copolymer that exhibits simultaneous electronic and ionic conduction. A combination of Grignard metathesis polymerization and click reaction was used successively to synthesize the block copolymer containing regioregular poly(3-hexylthiophene) (P3HT) and poly(ethylene oxide) (PEO) segments. The P3HT-PEO/LiTFSI mixture was then used to make a lithium battery cathode with LiFePO4 as the only other component. All-solid lithium batteries of the cathode described above, a solid electrolyte and a lithium foil as the anode showed capacities within experimental error of the theoretical capacity of the battery. The ability of P3HT-PEO to serve all of the transport and binding functions required in a lithium battery electrode is thus demonstrated.

Abstract: An adduct of (a) at least one divinylarene dioxide, and (b) at least one end-functionalized polymer. For example, the adduct may be beneficially used as a toughening agent for toughening thermoset resins such as epoxy resins.

Abstract: The present invention relates to an optical film that comprises an aromatic based resin comprising a chain having the hydroxy group containing portion and aromatic moiety and a polarizing plate and an information electronic device that include the same. The in-plane retardation Rin is in the range of 30 to 600 nm and the thickness retardation Rth is in the range of 30 to 400 nm.

Abstract: Methods for fabricating a random graft PS-r-PEO copolymer and its use as a neutral wetting layer in the fabrication of sublithographic, nanoscale arrays of elements including openings and linear microchannels utilizing self-assembling block copolymers, and films and devices formed from these methods are provided. In some embodiments, the films can be used as a template or mask to etch openings in an underlying material layer.

Abstract: The present invention provides, among other things, extruded blends of aliphatic polycarbonates and polyolefins. In one aspect, provided blends comprise aliphatic polycarbonates such as poly(propylene carbonate) and a lesser amount of a crystalline or semicrystalline polymer. In certain embodiments, provided blends are characterized in that they exhibit unexpected improvements in their elongation properties. In another aspect, the invention provides methods of making such materials and applications of the materials in applications such as the manufacture of consumer packaging materials.

Abstract: A two-part structural adhesive composition comprising a curable epoxy resin, an amine curing agent, a toughening agent, and a reactive liquid modifier. The structural adhesive may also include secondary curatives, initiators, reactive diluents and combinations thereof. The structural adhesives may be used to replace or augment conventional joining means such as welds or mechanical fasteners in bonding parts together.

Abstract: Modified carbon nanotubes are provided having carbon nanotube core covalently bound through C—C bonds to a polymer shell surrounding the carbon nanotube core. The polymer shell is a polymer having functional groups pointing outwardly from the shell. The functional groups are compatible with or able to covalently connect to another polymer. Such modified carbon nanotubes are more readily dispersed in a homogeneous manner in another polymer and may be used as a reinforcing filler in a polymer matrix. The modified carbon nanotubes with a core-shell structure in which the core has a substantially unidirectional orientation within the shell are produced by reacting neutral carbon nanotubes with 4-vinylaniline through a diazonium reaction in presence of one or more types of multifunctional monomers carrying a vinyl moiety and one or more functional groups for compatibilization with or connection to another polymer.

Abstract: Methods for fabricating a random graft PS-r-PEO copolymer and its use as a neutral wetting layer in the fabrication of sublithographic, nanoscale arrays of elements including openings and linear microchannels utilizing self-assembling block copolymers, and films and devices formed from these methods are provided. In some embodiments, the films can be used as a template or mask to etch openings in an underlying material layer.

Abstract: The present invention provides a resin composition for an adhesive sheet, comprising an acrylic copolymer containing (A) an acrylate ester, methacrylate ester, or a mixture thereof, (B) acrylonitrile, methacrylonitrile, or a mixture thereof, and (C) an unsaturated carboxylic acid; an epoxy resin; and a curing agent, wherein the curing agent comprises at least one selection from Lewis acid-amine complexes.

Abstract: The invention relates to a thermally curable liquid resin composition intended for manufacturing abrasives that comprises at least one epoxy resin comprising at least two epoxy groups and at least one reactive diluent, said composition having a viscosity, at 25° C., less than or equal to 7000 mPa·s. Application of the resin composition for producing abrasive articles, especially bonded abrasives and coated abrasives. It also relates to the abrasive articles comprising abrasive grains connected by such a liquid resin composition.

Abstract: A solid dry to the touch at ambient temperature structural adhesive which can be cured at elevated temperature and which can be moulded at an intermediate temperature is provided as well as the use of the adhesive for bonding metals.

Abstract: An epoxy and rubber microcomposite is formed by adding a carboxy-terminated or amine-terminated rubber component having a glass transition temperature less than zero degrees centigrade to a bisphenol A based epoxy resin component; heating the mixture to 150 degrees centigrade; cooling and curing with a suitable curing agent. A phase segregation occurs between the epoxy resin component and the rubber component to form discrete, spherical rubbery domains with the epoxy compound. Because the glass transition temperature of the rubbery domains is below zero degrees centigrade; the rubbery domains act as acoustic windows within the high-modulus epoxy compound.

Abstract: An epoxy resin composition having a curing component and an epoxy component is disclosed. The curing component includes an amount of about 8% to about 70% by weight of the composition of a primary curing agent and about 0.001% to about 5% by weight of the composition of a secondary curing agent. The epoxy composition also includes about 30% to about 92% by weight of the composition of the epoxy component. A number of equivalents of reactive curative groups in the curing component is from about 0.50 to 0.98 times the number of epoxide equivalents present in the epoxy component. An epoxy product formed from the epoxy resin composition is also disclosed.

Abstract: The invention relates to a method for the fluid-phase synthesis of a polymer formed from n monomers.