The present disclosure relates to a preparation method for a super absorbent polymer film. Specifically, it relates to a preparation method for a new type of super absorbent polymer film, which is thin and exhibits excellent absorption performance. In addition, the super absorbent polymer film of the present disclosure has excellent flexibility and excellent mechanical properties, is free from scattering or leaking, and does not require an auxiliary substance such as pulp, so that products can be made thinner and the manufacturing process and costs may be reduced.

A system for manufacturing a thermoplastic prepreg includes a double belt mechanism that is configured to compress a fiber mat, web, or mesh that is passed through the double belt mechanism, a resin applicator that is configured to apply monomers or oligomers to the fiber mat, web, or mesh, and a curing oven that is configured to effect polymerization of the monomers or oligomers and thereby form the thermoplastic polymer as the fiber mat, web, or mesh is moved through the curing oven. The double belt mechanism compresses the fiber mat, web, or mesh and the applied monomers or oligomers as the fiber mat, web, or mesh is passed through the curing oven so that the monomers or oligomers fully saturate the fiber mat, web, or mesh. Upon polymerization of the monomers or oligomers, the fiber mat, web, or mesh is fully impregnated with the thermoplastic polymer.

A crosslinked olefin-based thermoplastic elastomer expanded bead including a base polymer having an olefin-based thermoplastic elastomer and a brominated bisphenol-based flame retardant having a chemical structure represented by formula (1). A difference Tm.sub.TPO-T.sub.FR is −5° C. to 40° C., where Tm.sub.TPO is a melting point of the olefin-based thermoplastic elastomer and T.sub.FR is the lower of a glass transition temperature T.sub.gFR and a melting point Tm.sub.FR of the brominated bisphenol-based flame retardant. A xylene insoluble content is 5 mass % to 80 mass %. R.sup.1 and R.sup.3 in the formula (1) are monovalent substituents, R.sup.2 is a divalent substituent, and n is an integer from 1 to 6:

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The present disclosure describes a unique, two-part, water-soluble polymer matrix material and a method of application that immobilizes a wide variety of loose powder or crystalline hazardous materials and renders them “safe” or at least “safer” for handling and transport. The polymer matrix material is a two-part polymer material comprising a liquid cross-linking polymer and a cross-linking agent, initiator, or biocide contained in a solution. The cross-linking agent functions to cross-link the polymer and cause it to harden in place.

Curable epoxy resin compositions are provided that are mixtures containing an epoxy resin and composite particles. The composite particles have a porous polymeric core, a nitrogen-based curing agent for an epoxy resin positioned within the porous polymeric core, and a coating layer around the porous polymeric core. The nitrogen-containing curing agent typically does not react with the epoxy resin until the curable composition is heated causing the release of the nitrogen-containing curing agent from the composite particle. Additionally, cured epoxy resins formed from the curable composition and method of forming cured epoxy resins are provided.

Disclosed herein is a composition comprising a propylene based polymer; a polymeric ethylene ionomer; a vulcanizing agent that is a crosslinker and that is reactive with the polymeric ethylene ionomer; and a compatibilizer that is a crystalline block composite including (1) a crystalline ethylene based polymer, (2) a crystalline alpha-olefin based polymer derived from a C.sub.3-10 α-olefin, and (3) a block copolymer comprising 10 to 90 wt % of a crystalline ethylene block comprising at least 85 wt % of units derived from ethylene and 10 to 90 wt % of a crystalline alpha-olefin block comprising at least 90 wt % of units derived from the C.sub.3-10 α-olefin.

The present invention provides for a composition which is suitable for use in the vulcanization of rubber, and a process for producing the composition. The composition comprises a salt of a vulcanization accelerator which is selected from a group of accelerator classes including thiazoles, dithiocarbamates, dithiophosphates, sulfenamides, thiuram sulfides, xanthates, guanidines, aldehyde amines, or combinations thereof; a solid particulate substrate; and a hydrophobic carrier material.

The present invention provides thermosetting resin pre-impregnated or infused fiber materials or prepregs comprising a thermosetting resin mixture and a fiber material component of a heat resistant fiber, such as carbon fiber, having an areal weight of from 500 to 3,000 g/m2 having a coating of from 0.5 to 4 phr of a latent, particulate curative or solid curative, preferably, dicyandiamide, wherein the prepregs are infused with a thermosetting resin mixture comprising (a) at least one liquid epoxy resin, and (b) a hardener and/or a catalyst, as well as methods of making the same. The prepregs of present invention enables the simple provision of lightweight composites having consistent resin cure throughout.

There is provide a curable composition comprising a) one or more reactive components that cure upon exposure to suitable conditions, and b) a sulfur impregnated particulate solid which acts as a release agent for sulfur during the cure process; and c) optionally a solvent.

Provided is an epoxy resin composition including a nano-sized radioactive radiation shielding material which has superior shielding effects for against radiation, and to a method for preparing same. In particular, the method for preparing the epoxy resin composition for neutron shielding, includes the steps of: a step of mixing a boron compound powder for absorbing neutrons, optionally a high density metal powder for shielding from against gamma rays and a flame retardant powder, respectively separately or in combination, with an amine-based curing agent to obtain a mixture of a curing agent and a powder; an ultrasonic wave treating step of applying ultrasonic waves to the mixture to coat the surface of the powder with the amine-based curing agent and to disperse the powder in the curing agent; and a dispersing step of mixing and dispersing the amine-based curing agent, that was dispersed and includes the powder treated with ultrasonic waves, in an epoxy resin.