Abstract: An aqueous emulsion comprising an aqueous continuous phase and a discontinuous oil phase comprising particles having an interpenetrating network (IPN) comprising: i) an MQ resin, ii) a polyorganosiloxane and iii) an organic polymer.

Abstract: Provided herein is technology relating to materials having microscale and/or nanoscale features and particularly, but not exclusively, to porous materials comprising microscale features, methods for producing porous materials comprising microscale features, drug delivery vehicles, and related kits, systems, and uses.

Abstract: A cable includes a sheath, and a coating film covering a circumference of the sheath. The coating film adheres to the sheath. The static friction coefficient of a surface of the coating film is smaller than the static friction coefficient of a surface of the sheath. The adhesion strength between the sheath and the coating film is 0.30 MPa or more.

Abstract: Described herein are compositions comprising an actinically-crosslinkable polysiloxane-polyglycerol block copolymers, methods of making and use thereof, and devices comprising the compositions described herein. Disclosed herein are compositions comprising an actinically-crosslinkable polysiloxane-polyglycerol block copolymer derived from: a polysiloxane prepolymer comprising a polyglycerol side chain, the polyglycerol side chain comprising an ethylenically unsaturated group covalently linked thereto, wherein the ethylenically unsaturated group is actinically curable.

Abstract: Curable silicone compositions comprising an aryl group-containing organopolysiloxane gum having a consistency of 200 to 900 as a rheological modifier are provided. Use of the curable silicone compositions comprising an aryl group-containing organopolysiloxane gum having a consistency of 200 to 900 in methods for additive manufacturing a three-dimensional silicone elastomer article are further provided.

Abstract: In one aspect, compositions are described herein. In some embodiments, a composition comprises a phase change material, a hydrophobic sorption material, and a viscosity modifier. In some embodiments, a composition comprises a foam and a latent heat storage material dispersed in the foam, the latent heat storage material comprising a phase change material and a hydrophobic sorption material.

Abstract: The invention is generally related to an embedded silicone hydrogel contact lens comprising a silicone hydrogel material and a hydrophobic insert. The silicone hydrogel material comprises repeating units of at least one first polysiloxane vinylic crosslinker comprising hydrophilized siloxane units each having one methyl substituent and one organic radical including at least one H-bond donor (e.g., hydroxyl groups), wherein the content of said at least one H-bond donor is at least 0.8 meq/g relative to the molecular weight of said at least one first polysiloxane vinylic crosslinker. The hydrophobic insert is composed of a crosslinked polymeric material comprising at least 40% by mole of acrylic repeating units and at least 6% by mole of repeating units of at least one vinylic crosslinking agent. The embedded silicone hydrogel is not susceptible to delamination.

Abstract: Biodegradable polymers with advantageous physical and chemical properties are described, as well as methods for making such polymers. In one embodiment, a new chemical synthesis route to technologically important biodegradable poly(3-hydroxybutyrate) (P3HB) with high isotacticity and molecular weight required for a practical use is described. The new route can utilize racemic eight-membered cyclic diolide (rac-DL), meso-DL, or a rac-DL and meso-DL mixture, derived from bio-sourced dimethyl succinate, and enantiomeric (R,R)-DL and (S,S)-DL, optically resolved by metal-based catalysts. With a stereoselective racemic molecular catalyst, the ROP of rac-DL under ambient conditions produces rapidly P3HB with essentially perfect isotacticity ([mm]>99%), high crystallinity and melting temperature (Tm=171° C.), as well as high molecular weight and low dispersity (Mn=1.54×105 g/mol, Ð=1.01).

Abstract: The invention relates to a material for use as construction material for energy-pulse-induced transfer printing, which contains (a) at least one polymerizable binder, (b) at least one volume expansion component, (c) at least one initiator for the polymerization and (d) preferably at least one energy transformation component. The invention furthermore relates to a process for producing three-dimensional objects using the material.

Abstract: The invention is generally related to an insert for being embedded in a silicone hydrogel contact lens. The insert is made of a crosslinked materials which are rigid in dry state at room temperature (from about 22° C. to about 26° C.), have a high oxygen permeability and a high refractive index in fully hydrated state. Such materials are useful for making inserts in embedded contact lenses for correcting corneal astigmatism, presbyopia, and color blindness lenses and for imparting photochromic characteristics to the lenses. The invention is also related to a method for making embedded silicone hydrogel contact lenses comprising an insert of the invention therein and to embedded silicone hydrogel contact lenses comprising an insert of the invention therein.

Abstract: A fluorine coating agent having enhanced dental tubule permeability and coating endurance, and a method for preparing the same. The fluorine coating agent applied on the surface of a tooth is enhanced in abrasion resistance to increase a period of time during which a coating membrane lasts, thereby preventing dental caries. Further, the curing time of the fluorine coating agent can be controlled to allow the agent to permeate and thus block the dental tubule.

Abstract: Grafted, crosslinked cellulosic materials include cellulose fibers and polymer chains composed of at least one monoethylenically unsaturated acid group-containing monomer (such as acrylic acid) grafted thereto, in which one or more of said cellulose fibers and said polymer chains are crosslinked (such as by intra-fiber chain-to-chain crosslinks). Some of such materials are characterized by a wet bulk of about 10.0-17.0 cm3/g, an IPRP value of about 1000 to 7700 cm2/MPa·sec, and/or a MAP value of about 7.0 to 38 cm H2O. Methods for producing such materials may include grafting polymer chains from a cellulosic substrate, followed by treating the grafted material with a crosslinking agent adapted to effect crosslinking of one or more of the cellulosic substrate or the polymer chains. Example crosslinking mechanisms include esterfication reactions, ionic reactions, and radical reactions, and example crosslinking agents include pentaerythritol, homopolymers of the graft species monomer, and hyperbranched polymers.

Abstract: There is provided a material comprising a multi-block thermogelling polymer, said multi-block thermogelling polymer comprising a hydrophilic polymer block; a thermosensitive polymer block; and a hydrophobic polymer block, wherein the hydrophilic polymer block, the thermosensitive polymer block and the hydrophobic polymer block are chemically coupled together by at least one of urethane/carbamate, carbonate, ester linkages or combinations thereof, and wherein the material is suitable for use as a vitreous substitute. Also provided are a method of preparing said material and a synthetic vitreous humour or part thereof comprising said material.

Abstract: The present invention relates to an antimicrobial polymer coating composition including: a (meth)acrylate-based monomer or oligomer containing an alkylene oxide having 1 to 10 carbon atoms; a photosensitizer; and a photoinitiator, and an antimicrobial polymer film including a substrate layer including a polymer resin containing a (meth)acrylate-based repeating unit having an introduced alkylene oxide functional group having 1 to 10 carbon atoms, and a photosensitizer dispersed in the substrate layer, wherein the antimicrobial polymer film has surface energy of 32 mN/m or more.

Abstract: Described is a silicone hydrogel contact lens having non-uniform morphology. The contact lens may be made from a reactive mixture comprising: a silicone-containing component; a hydrophilic component; a non-reactive polymeric internal wetting agent; and a polymerization initiator, the contact lens having an oxygen permeability of at least about 60 barrers, and wherein the molar ratio in the lens of the polymeric non-reactive internal wetting agent to silicone, without a surface treatment, is greater in the lens's surface than in its bulk.

Abstract: A coating composition is provided for inhibiting growth of fungus and/or algae on a surface. The coating composition includes a dry film preservative and an antibacterial dry-film preservative comprising an immobilized isothiazolin-3-one derivative/zinc oxide complex. The amount of the antibacterial preservative comprising immobilized 1,2-isothiazolin-3-one derivative/zinc oxide complex and the dry film preservative contained in the coating composition is sufficient to inhibit or prevent the defacement of a surface exposed to the environment, when such defacement is due to growth of fungi or algae, or a combination of fungi and algae on a surface coated with said surface coating composition.

Abstract: Novel, lubricious coatings for medical devices are disclosed. The coatings provide improved lubricity and durability and are readily applied in coating processes a low temperatures that do not deform the device. The present invention is also directed to a novel platinum catalyst for use in such coatings. The catalyst provides for rapid curing, while inhibiting cross-linking at ambient temperatures, thereby improving the production pot life of the coatings.

Abstract: The present invention relates to a dental material comprising a thermoset methacrylate-based polymer resin and cellulose nanocrystals, wherein the cellulose nanocrystals have been modified to be hydrophobic.

Abstract: A polymerizable composition for an optical material containing two or more different monomers for an optical material, and a polymerization catalyst, in which at least one of the two or more different monomers for an optical material is an isocyanate compound containing no aromatic rings, a content of the polymerization catalyst with respect to a total of 100 parts by mass of the two or more different monomers for an optical material is from more than 0.05 parts by mass to 2.0 parts by mass, and a viscosity measured by a B-type viscometer at 25° C. and 60 rpm is from 10 mPa·s to 1,000 mPa·s.

Abstract: Sidechain functionalized organosiloxane compounds are provided having a first end and a second end; a polysiloxane backbone; and a first plurality of sidechains covalently attached to the polysiloxane backbone and a second plurality of sidechains covalently attached to the polysiloxane backbone; wherein the first plurality of sidechains comprise polyalkylene glycol sidechains; wherein the first plurality of sidechains and the second plurality of sidechains comprise a tethered end covalently attached to the polysiloxane backbone and a free end opposite to the tethered end; and wherein the free end in one or both of the first plurality of sidechains and the second plurality of sidechains comprises a reactive end group. Compositions comprising the sidechain functionalized organosiloxane compounds are also provided, as well as coated articles. Sidechain functionalized lubricants are also provided that can be used with compositions and coated articles herein.