C08J2383/08

Touch sensitive device comprising electroactive film, display device comprising the same, and method of manufacturing the electroactive film

Provided is a touch sensitive device including an electroactive film, a display device including the same, and a method of manufacturing the electroactive film. The touch sensitive device of the present disclosure includes an electroactive film including a siloxane polymer having a fluoro group or a chloro group bonded to a part of the backbone, and the electroactive film has a dielectric constant that is improved by 15% or more by elongation at an elongation rate of 100% or more.

AQUEOUS DISPERSIONS OF PRE-CROSSLINKED ORGANOPOLYSILOXANES

An aqueous of pre-crosslinked organopolysiloxanes and process for producing the same. The aqueous dispersion is preferably aqueous emulsion, including pre-crosslinked organopolysiloxanes which contains on average at least one structural unit of the general formula SiRO.sub.2/2—Y—SiRO.sub.2/2 and units of the formula R.sub.2SiO.sub.2/2. Where Y is a radical of the formula


—R.sup.2—[NR.sup.3—R.sup.4—].sub.x—NR.sup.3—OC—[C(Z.sup.1)(H)].sub.k1—[C(Z.sup.2)(H)].sub.k2—CO—NR.sup.3—[R.sup.4—NR].sub.x—R.sup.2

and where R, R.sup.2, R.sup.3, R.sup.4, k1, k2, x, Z.sup.1 and Z.sup.2 have a definition a set forth within herein. Additionally, the sum of k1+k2 is ≥1, the that at least one radical Z.sup.1 or Z.sup.2 is a hydroxyl or NHR.sup.3 group, preferably a hydroxyl group, and so the bridging group Y contains at least one hydroxyl or NHR.sup.3 group, preferably at least one hydroxyl group.

CURABLE ORGANOPOLYSILOXANE COMPOSITION FOR FORMING FILM AND PRODUCTION METHOD FOR ORGANOPOLYSILOXANE CURED PRODUCT FILM
20220064448 · 2022-03-03 ·

Provided is a curable organopolysiloxane composition for forming a film capable of uniform and thin film formation, and a method of manufacturing an organopolysiloxane cured film using the same. The curable organopolysiloxane composition for forming a film, comprises: a curing reactive organopolysiloxane, a curing agent, and one or more type of organic solvent selected from (D1) organic polar solvents, (D2) low molecular weight siloxane solvents, and (D3) halogen solvents, or a mixed solvent thereof. The viscosity of the entire composition measured at a shear rate of 0.1 (s.sup.−1) at 25° C. is 100,000 mPa.Math.s or less, the viscosity of the entire composition measured at a shear rate of 10.0 (s.sup.−1) is within a range of 5 to 10,000 mPa.Math.s, and a thixotropic ratio thereof is 25.0 or less.

None
20230390180 · 2023-12-07 ·

The present invention concerns a dispersion formed of a dispersed phase in the form of drops and a continuous phase, comprising a fatty phase and an aqueous phase non-miscible with each other at ambient temperature and atmospheric pressure, one of the phases among the fatty phase and the aqueous phase being the dispersed phase and the other phase among the fatty phase and aqueous phase being the continuous phase, wherein the drops comprise at least one core and at least one shell formed of at least one anionic polymer and at least one cationic polymer, the cationic polymer being a compound having the following formula (I):

##STR00001## where: n is an integer of 1 to 5; X.sup.1 and X.sup.2, the same or different, are —O—, —CH.sub.2— or —NH—; R.sup.1, R.sup.2 and R.sup.3, the same or different, are each independently a divalent alkylene radical having 20 to 50 carbon atoms; R.sup.4 and R.sup.5, the same or different, are each independently H, OH or NH.sub.2, at least one of the groups R.sup.4 and R.sup.5 being NH.sub.2.

Preparation method of organic silicone elastomerscross-linked by polyphenols
20220041862 · 2022-02-10 ·

The invention presents a preparation method of organic silicone elastomers cross-linked bypolyphenols, which comprises steps as follows: (1) Dissolve 15-250 parts (by mass) of amino-polysiloxanes in the organic solvents to get the amino-polysiloxanes solution; then, dissolve 1˜20 parts of polyphenols in 1-60 parts of water to get the aqueous solution of polyphenols; mix the said two solutions, add 2-130 parts of reinforcement fillers, stir evenly, and then pour them into the mold. (2) Cure and cross-link the mold containing the mixed solutions at 80° C.-170° C. for a period of time, and cool it to room temperature to get the organic silicone elastomer.

Silicone hydrogels comprising N-alkyl methacrylamides and contact lenses made thereof

The present invention relates to silicone hydrogels exhibiting desired combinations of physical and mechanical properties, formed from a reactive monomer mixture comprising at least one N-alkyl methacrylamide, and at least one silicone-containing component. These silicone hydrogels may also contain hydrophilic components, crosslinking agents and toughening monomers. These silicone hydrogels are useful in preparing biomedical devices, ophthalmic lenses, and contact lenses.

SILICONE RUBBER MOLDED BODY AND PRODUCTION METHOD FOR THE SAME

A silicone rubber molded body (10) has an article contact surface (11). The article contact surface (11) has a coefficient of rolling resistance lowered by a fluorination treatment on the article contact surface (11).

Shock-absorbing nanostructured polymer alloy

The present invention relates to a shock-absorbing nanostructured polymer alloy, comprising: a (meth)acrylic polymer matrix comprising one or more (meth)acrylic polymer(s), said (meth)acrylic polymer matrix forming a (meth)acrylic network, and, at least one polyborodimethylsiloxane (PBDMS) distributed in the (meth)acrylic polymer matrix, the polyborodimethylsiloxane forming a network, the polyborodimethylsiloxane network and the (meth)acrylic network being intertwined. The invention also relates to a chemical composition for the manufacture of such an alloy as well as a process for manufacturing a part made of such an alloy.

SKIN-CONTACT PRODUCT HAVING MOISTURE AND MICROCLIMATE CONTROL

Skin-contact products with a transpiration function such as medical devices or medicinal products, of which face masks, aspirators, ventilators, breast pumps or wound dressings are examples are described especially a skin-contact product with a transpiration function with an improved microclimate at a patient interface material -skin contact area. In an embodiment a material system is described that comprises a hydrophobic silicone base material and a hydrophilic silicone material that is combined with the hydrophobic base material.

SILICONE HYDROGEL LENS WITH A CROSSLINKED HYDROPHILIC COATING

The invention is related to a cost-effective method for making a silicone hydrogel contact lens having a crosslinked hydrophilic coating thereon. A method of the invention involves heating a silicone hydrogel contact lens in an aqueous solution in the presence of a water-soluble, highly branched, thermally-crosslinkable hydrophilic polymeric material having positively-charged azetidinium groups, to and at a temperature from about 40° C. to about 140° C. for a period of time sufficient to covalently attach the thermally-crosslinkable hydrophilic polymeric material onto the surface of the silicone hydrogel contact lens through covalent linkages each formed between one azetidinium group and one of the reactive functional groups on and/or near the surface of the silicone hydrogel contact lens, thereby forming a crosslinked hydrophilic coating on the silicone hydrogel contact lens. Such method can be advantageously implemented directly in a sealed lens package during autoclave.