The present invention provides a dual-cure composition containing multifunctional polyols, uretdiones, peroxide curable monomers containing unsaturation and crosslinking agents. The dual-cure composition may be used to form a high modulus material useful as the matrix in a prepreg material and in composites. The present invention also relates to methods for the production of the dual-cure composition, prepreg materials comprising the dual-cure composition and a fibrous support, and composites made from the prepreg material.

The present disclosure provides a composition for preparing a lightweight transparent composite, a method of preparing a composite using the same, and a composite prepared by the method. The lightweight transparent composite having excellent impact resistance, scratch resistance, weather resistance, and high hardness can be prepared by thermally curing a mixture of a glass fiber reinforcement having a refractive index of 1.4 to 1.6 and a curable resin having a deviation in refractive index of 0.005 to +0.005 from the glass fiber reinforcement. When the lightweight transparent composite is applied to transparent windows for automobiles, the lightweight transparent composite can be useful in enhancing fuel efficiency, achieving easier handling characteristics due to reduction in vehicle center of gravity, and improving juddering and dimensional stability even during car driving due to excellent hardness.

The present invention provides coating compositions that include reactive diluents and have high performance, low VOC levels, and low irritation levels. Certain embodiments of the present invention include water and water-dispersible polymers and other embodiments do not include water.

Provided is an active-energy-ray-curable coating composition containing components (A) to (D): as the component (A), a compound represented by a general formula (1) or (2), as the component (B), a compound represented by a general formula (3), as the component (C), a compound represented by a general formula (4), (5), or (6), and as the component (D), a compound represented by a general formula (7) or (8). In the total solid content of the components (A) to (D), a content of the component (A) is 1 to 40% by mass, a content of the component (B) is 30 to 85% by mass, a content of the component (C) is 1 to 30% by mass, and a content of the component (D) is 1 to 40% by mass.

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A polyurethane composition, a composite material comprising a fiber reinforcement material and a polyurethane resin obtained from the polyurethane composition, and a method for preparing the polyurethane resin are provided. The polyurethane composition comprises: A) an isocyanate component; B) an isocyanate-reactive component comprising B1) a first polyol; B2) an isocyanate reactive (meth) acrylate monomer; and B3) an acetoacetoxy functional or acetoacetamido functional (meth) acrylate monomer; and C) a free radical initiator.

The present disclosure provides a foamable resin composition. The foamable resin composition includes a polyurethane (meth) acrylate oligomer, a photoinitiator, a heat-expandable microcapsule, and a photopolymerizable monomer.

The present disclosure provides novel oligomer compounds (e.g., non-polar oligomers) that can produce desirable polymeric materials (e.g., with polar reactive diluents), polymer compositions, and/or photo-curable resins that have excellent stain resistance. Further provided herein are methods of producing polymerizable compositions, resins, devices, and polymeric materials. Also provided herein are methods of using polymerizable compositions, resins, and polymeric materials for the fabrication (e.g., via 3D printing) of medical devices, such as orthodontic appliances with increased stain resistance.

An actinic radiation and/or thermally curable composition (I) for composite material comprising: (A) at least 20 wt % of compound A comprising at least 2 ethylenically unsaturated moieties and a structural moiety; (B) at least 20 wt % of compound B comprising at least 2 ethylenically unsaturated moieties and a cycloaliphatic structure or heterocyclic aliphatic structure; (C) from 1 to 40 wt % of a compound C different from compound A and B containing essentially one ethylenically unsaturated moiety and having a viscosity of less than 100 mPa.Math.s measured at 25 C., preferably below 50 mPa.Math.s. even more preferably below 25 mPa.Math.s; and (D) from 0 to 20 wt % of a compound D, comprising at least one ethylenically unsaturated moiety, and which is different from compound A, B and C; whereby the total of compound B and A have a content of from 60 to 99 wt % in view of the total content of compounds A. B, C and optionally D.

The present disclosure provides for porous polymer materials that include an ordered array of voids separated by a polymer framework. The porous polymer material can have a recovery state where the voids are in an uncollapsed state and iridescent color, and a deformed state having voids in a collapsed state that is non-iridescent or substantially transparent. The materials can have regions of both states simultaneously. Also described are methods for fabricating a polymer material as above, as well as chromogenic sensors including the polymer material. The sensors can have hidden anti-counterfeiting patterns, hydrophobic/oleophobic properties, and chromogenic transformation can be triggered by various stimuli such as solid target compounds, light energy, and more.