The present invention discloses an anti-blue light anti-infrared resin lens having a refractivity of 1.50, and a preparation method thereof. The lens comprises 100 parts by weight of CR39 resin monomer, 0.5-5 parts by weight of an initiator, and 1.0216-30.6 parts by weight of an additive, where the additive includes an anti-infrared absorber, a blue light absorber, and a hardness modifier at a weight ratio of 0.0005-0.5:0.001-10:1-10, the initiator is benzoyl peroxide, dicumyl peroxide, or 1,1-di-tert-butylperoxy-3,3,5-trimethylcyclohexane. The resin lens prepared in the present invention has both blue light absorption effect and near-infrared absorption effect and is capable of being dyed as needed to have the effect of sunglasses, while the quality of the lens is guaranteed. The resin lens is a new type of multifunctional resin lens.

Provided herein is a cell macroencapsulation device composed of hydrogel in a 3D conformation that optimizes encapsulated cell viability and function when transplanted into a vascularized tissue space. The hydrogel macroencapsulation device is intended to reduce or eliminate immune response to the cell graft, while allowing exchange of encapsulated cell-secreted products, such as insulin. Also described herein is an injection-mold and fabrication process to generate the hydrogel macroencapsulation devices for use in the clinic.

The present invention provides polyurethanes including a reaction product of components including: (1) a reaction product of (a) an isocyanate functional urethane prepolymer including a reaction product of components including: (i) about 1 equivalent of at least one polyisocyanate; and (ii) about 0.005 to about 0.35 equivalent of at least one polycaprolactone polyol; and (b) about 0.01 to about 0.5 equivalent of at least one polyol having 2 hydroxyl groups, based upon the about 1 equivalent of the at least one polyisocyanate; and (2) about 0.3 to about 1.0 equivalent of at least one polyol having at least 2 hydroxyl groups, based upon the about 1 equivalent of the at least one polyisocyanate, wherein the at least one polyol (b) can be the same or different from the at least one polyol (2); compositions, coatings and articles made therefrom and methods of making the same.

The present disclosure includes dental appliances and methods of making and using such appliances. One method for forming a dental appliance includes forming a liquid thermoset polymer material into a semi-solid first shape, thermoforming the semi-solid first shape of thermoset polymer material onto a dentition mold, and curing the thermoset polymer on the dentition mold with a curative trigger to complete a molecular cross-linking reaction.

A material fabrication method comprises (a) fabricating a structure from a programmable amyloid material (PAM) ink comprising an amyloid monomer stabilized in a liquid solvent; and (b) contacting the structure with an agent which triggers polymerization of the amyloid monomer and stabilization of the structure.

A method for setting polymerization condition includes a physical property acquiring step of, when heating a composition including a polymerization-reactive compound and a polymerization catalyst and/or a polymerization initiator and retaining heat at a predetermined temperature, acquiring a physical property value a derived from a functional group before heating of the polymerization-reactive compound and a physical property value b derived from a remaining functional group after maintaining a temperature for a predetermined time; a remaining functional group ratio calculating step of calculating a remaining functional group ratio from the physical property value a and the physical property value b; a reaction rate coefficient calculating step of calculating a reaction rate coefficient from the remaining functional group ratio on the basis of a reaction rate equation; and a polymerization temperature calculating step of calculating a polymerization temperature on the basis of the reaction rate coefficient and conditions below.

A curable organopolysiloxane composition containing dynamic covalent organopolysiloxanes which yields, upon cure, a silicone rubber having adaptive elastomeric and viscous characteristics is claimed. The silicone may be an elastomer or foam. A method of making the silicone rubber and a shaped article made of the cured adaptive viscoelastic silicone rubber composition are also claimed.

Heat-curable bio-based casting composition, including: (a) one or more monofunctional and one or more polyfunctional acrylic and/or methacrylic biomonomers of vegetable or animal origin, (b) one or more polymers or copolymers selected from among polyacrylates, polymethacrylates, polyols, polyesters derived from recycled material or of vegetable or animal origin, (c) inorganic filler particles of natural origin, where the proportion of the monofunctional and polyfunctional acrylic and methacrylic biomonomer(s) is 10-40% by weight, the proportion of the polymer(s) or copolymer(s) is 1-16% by weight and the proportion of the inorganic filler particles is 44-89% by weight.

Transparent articles and methods of producing transparent articles are provided. The transparent article includes hydrophobic nanoparticles dispersed within poly(methyl methacrylate). The method of producing transparent articles includes pouring a transparent article precursor into a mold, the transparent article precursor comprising nanoparticles, a solvent, and a polymer, and the mold comprising a flat surface. The method also includes placing the mold into a container having an adjustable opening and allowing the solvent to evaporate from the transparent article precursor, thereby forming the transparent article over the flat surface of the mold. The method further includes flattening the transparent article, in which flattening the transparent article includes positioning a flat article on a first side of the transparent article, and compressing the transparent article between the flat surface and the flat article.

A functional polymeric cutting edge structure and methods for manufacturing cutting edge structures using polymeric materials are provided. A razor blade for use in a razor cartridge or a blade box for assembly in a razor cartridge frame may be formed using the present invention.