An object of the present invention is to provide a dental resin-reinforced glass ionomer cement composition which exhibit high surface curability even under wet conditions, which makes it difficult for the surface to become cloudy even if moisture comes in contact with at the initial stage of curing, exhibits high mechanical properties, low water absorption expansion and excellent coloring resistance in the set product and is also excellent in storage stability. The dental resin-reinforced glass ionomer cement composition consisting of a powder material and a liquid material, wherein the powder material contains (a) acid-reactive glass powder, the liquid material contains (b) water, (c) polymer of acidic group-containing polymerizable monomer, (d) hydroxyl group-containing (meth)acrylate-based polymerizable monomer and (e) tri or more functional (meth)acrylamide-based polymerizable monomer, and at least one of the powder material and the liquid material contains (f) polymerization initiator.

In various embodiments, a water-based binder solution for use in additive manufacturing, includes a thermoplastic binder. The thermoplastic binder includes a first polymer strand having a weight average molecular weight (Mw) of from greater than or equal to 5,000 g/mol to less than or equal to 15,000 g/mol, a second polymer strand having a weight average molecular weight of from greater than or equal to 10,000 g/mol to less than or equal to 50,000 g/mol, and a third polymer strand having a weight average molecular weight of from greater than or equal to 1,000 g/mol to less than or equal to 5,000 g/mol. The binder solution further comprises from greater than or equal to 0.1 wt% to less than or equal to 5 wt% of a non-aqueous solvent having a boiling point of greater than 100° C.

In one aspect, the disclosure relates pertains to a vitreous substitute comprising a gel and an antioxidant, wherein the vitreous substitute mimics the physical properties of natural vitreous humor, as well as its methods of use in the treatment of ophthalmological disorders.

Methods for determining the gelation period of a gel solution are provided. The methods provided include introducing an inert ball into each of a plurality of gel solution containers having a gel solution therein. In the method, the inert balls are then allowed to sink to the bottom of the containers, followed by a step of repeatedly inverting a first gel solution container at specified time intervals until the onset of gelation of the first gel solution is observed. Methods further include repeatedly inverting an additional gel solution container at specified intervals where each of the subsequent gel solution containers containing the inert balls and gel solutions are sequentially inverted in series until the inert ball is observed to remain fixed in place in the solution.

Provided are devices and methods that combine material anisotropy with nonlinear structural design to produce structures that precisely and sequentially actuate in response to multiple stimuli, such as water or non-polar solvents. These devices and methods can include bistable anisotropic elements that convert to monostable element upon exposure to a particular stimulus, and anisotropic distortions can be harnessed to change the geometric properties of the element to cross phase boundaries and trigger shape changes at precise times. One can incorporate complex logic into these devices and methods.

An air inlet deflector for a structure having an air inlet. The deflector may be retractable within the structure, may be integrally formed with the structure, and may prevent the structure from ingesting foreign matter, such as birds. The deflector may include a series of ribs, spokes, or vanes that may vary in width and/or thickness from fore to aft, and/or may be curvilinear in one or more planes of view, and/or may serve double duty as inlet vanes for redirecting inlet air.

The present disclosure provides for compositions including at least one type of water-soluble polymer having a molecular weight of about 10 kDa to 10,000 kDa, methods of making the water-soluble polymer, structures having the water-soluble polymer disposed thereof, and methods of use thereof. The present disclosure provides for branched and hyperbranched water-soluble polymers and methods of making branched and hyperbranched water-soluble polymers.

The present disclosure provides for compositions including at least one type of water-soluble polymer having a molecular weight of about 10 kDa to 10,000 kDa, methods of making the water-soluble polymer, structures having the water-soluble polymer disposed thereof, and methods of use thereof. The present disclosure provides for branched and hyperbranched water-soluble polymers and methods of making branched and hyperbranched water-soluble polymers.

Described herein are polyoxymethylene (POM) compositions comprising polyoxymethylene and styrene maleic anhydride (SMA) copolymers or modified SMA copolymers, said POM compositions exhibiting improved physical properties such as heat deflection temperatures compared to POM compositions which do not comprise SMA copolymers.

Described herein are polyoxymethylene (POM) compositions comprising polyoxymethylene and styrene maleic anhydride (SMA) copolymers or modified SMA copolymers, said POM compositions exhibiting improved physical properties such as heat deflection temperatures compared to POM compositions which do not comprise SMA copolymers.