MODIFIED DIMETHYLACRYLATE MONOMER, METHOD FOR PREPARING THE SAME, AND POLYMERIC DENTAL COMPOSITE

A modified dimethylacrylate monomer is represented by the following formula (I): wherein R11 and R12 independently represent a C1 to C3 alkylene group or a phenylene group; X1 and X2 independently represent NHCO, CO, or a single bond; Y1 and Y2 independently represent a C1-C10 alkylene group or a single bond; and Z1 and Z2 independently represent SiA1A2A3 or H, with the proviso that, Z1 and Z2 cannot be H at the same time. A method for preparing the modified dimethylacrylate monomer and a polymeric dental composite are also disclosed.

DENTAL ETCHING GEL COMPOSITION AND METHOD OF USE THEREOF

The present invention provides a dental etching gel composition including phosphoric acid in aqueous solution form, a viscosity-enhancing agent and optionally additives, in which the viscosity-enhancing agent is carboxymethyl cellulose (CMC) with the following properties: 1. A dental etching gel composition , comprising phosphoric acid in aqueous solution form and a viscosity-enhancing agent , wherein the viscosity-enhancing agent is carboxymethyl cellulose (CMC) having the following properties:(a) having a viscosity of about 100 to about 2000 cps when formulated as an aqueous solution comprising 1 wt % of CMC; and(b) having an average degree of substitution of sodium salts in molecular formula of about 21% to about 33%.2. The dental etching gel composition according to claim 1 , wherein the concentration of the phosphoric acid in aqueous solution form is 10 to 40 wt %.3. The dental etching gel composition according to claim 2 , wherein the concentration of the phosphoric acid in aqueous solution form is 37 wt %.4. The dental etching gel composition according to claim 1 , wherein CMC is present in an amount of 0.5 to 7 wt % of the total weight of the etching gel composition.5. The dental etching gel composition according to claim 4 , wherein CMC is present in an amount of 1 to 6 wt % of the total weight of the etching gel composition.6. The dental etching gel composition according to claim 5 , wherein CMC is present in an amount of 2 to 5 wt % of the total weight of the etching gel composition.7. The dental etching gel composition according to claim 1 , wherein CMC has the following properties:(a) having a viscosity of about 300 to about 1500 cps when formulated as an aqueous solution comprising 1 wt % of CMC; and(b) having an average degree of substitution of sodium salts in molecular formula of about 21% to about 33%.8. The dental etching gel composition according to claim 1 , further comprising one or more additives selected from the group consisting of a color ...

Teeth-whitening gel

A teeth-whitening gel is provided. The main ingredient of the teeth-whitening gel comprises a polypeptide having halamine (NX bond, XCl, Br or I) groups and a high molecular weight. By the redox properties of halamine group, the gel contacting with the teeth's surface can bleach and whiten the teeth.

Mouthwash composition

A mouthwash composition comprises water and a modified polyglutamic acid composed of a plurality of segment A and a plurality of segment B randomly arranged, in which, the segment A has a formula I: The segment B has a formula II: wherein X=H, Na, K, NH 4 , ½Ca, or ½Mg, and Y=Cl, Br, or I. The modified polyglutamic acid in the mouthwash composition is 0.1-5 wt %. The mouthwash composition in the present invention can eliminate bad breath, and also has antibacterial properties, so it can suppress the formation of dental plaque and is effective in preventing periodontal disease.

Contact Lens-Treating Solution and Method for Treating a Contact Lens

A contact lens-treating solution contains polyelectrolyte complex particulates and an aqueous solution for dispersing the polyelectrolyte complex particulates. Each of the polyelectrolyte complex particulates is formed of a cationic polymer and an anionic polymer. The aqueous solution contains water and an additive including a surfactant, an antibacterial agent, a cleaning agent, a thickening agent, a chelating agent, and combinations thereof for cleaning or maintaining the contact lens. A method for treating a contact lens using a contact lens-treating solution containing water and polyelectrolyte complex particulates is also disclosed.

WEARABLE SENSING DEVICE

A wearable sensing device is disclosed. The wearable sensing device includes a plurality of electrodes. A corresponding group of microprobes associated to each of the plurality of electrodes is provided. Another group of microprobe associated with a trigger circuit is provided and configured to determine attachment of the wearable sensing device to the user. 1. A wearable sensing device , comprising:a carrier defining a contact face;a first group of microprobes associated with a working electrode protruding from the contact face of the carrier and reaching a first height;a second group of microprobes associated with a counter electrode protruding from the contact face of the carrier and reaching a second height;a third group of microprobes and associated with a reference electrode protruding from the contact face of the carrier and reaching a third height;a fourth group of microprobe associated with a trigger electrode exposed from the contact face of the carrier and reaching a fourth height;wherein the fourth height is less than the first, second, and third heights.2. The device of claim 1 , wherein the trigger electrode is configured to trigger operation of the working claim 1 , reference claim 1 , and counter electrodes upon receiving a contact signal with a predetermined signal level.3. The device of claim 2 , wherein the trigger electrode is associated with a trigger circuit configured to generate an alert signal when sensing a drop of contact signal below the predetermined signal level.4. The device of claim 1 , wherein the first claim 1 , second claim 1 , and third heights are less than 2000 um and the fourth height is less than 100 um.5. The device of claim 1 , wherein a ratio between a number of the first group of microprobes and a number of the second group of microprobes ranges between 2:1 to 3:1.6. The device of claim 1 , wherein the first group of microprobes is formed on a perforated plate claim 1 , wherein the fourth group of microprobe is arranged ...

Teeth-Whitening Gel

A teeth-whitening gel is provided. The main ingredient of the teeth-whitening gel comprises a polypeptide having halamine (N—X bond, X═Cl, Br or I) groups and a high molecular weight. By the redox properties of halamine group, the gel contacting with the teeth's surface can bleach and whiten the teeth.

Method for enhancing water content of silicone hydrogel contact lens

The present invention provides a method for producing a silicone hydrogel having a high water content. The method comprises the following steps: (a) polymerizing a monomer mixture to form the silicone hydrogel, wherein the monomer mixture comprises at least one silicon-containing monomer and at least one ionic monomer; and (b) placing the silicone hydrogel in an alkaline solution for at least 20 minutes, wherein the alkaline solution has a pH not less than 7.5 and the ionic monomer is present in an amount not less than 0.7 wt % based on the total dry weight of the silicone hydrogel.

CHLORINATED POLYMER ENHANCING WETTABILITY OF SILICONE HYDROGEL, SILICONE HYDROGEL COMPRISING THE SAME AND OCULAR ARTICLE MADE THEREFROM

The present invention provides a reactive hydrophilic polymer comprising units of Formulae (I) and (II): 2. The reactive hydrophilic polymer according to claim 1 , wherein the ratio of the mole number of the unit of Formula (I) to the total mole number of the units of Formulae (I) and (II) is from 0.003 to 0.03.3. The reactive hydrophilic polymer according to claim 2 , wherein the ratio of the mole number of the unit of Formula (I) to the total mole number of the units of Formulae (I) and (II) is from 0.005 to 0.02.4. The reactive hydrophilic polymer according to claim 1 , wherein the reactive hydrophilic polymer has a molecular weight from 30 claim 1 ,000 to 1 claim 1 ,500 claim 1 ,000.5. The reactive hydrophilic polymer according to claim 4 , wherein the reactive hydrophilic polymer has a molecular weight from 50 claim 4 ,000 to 1 claim 4 ,300 claim 4 ,000.6. The reactive hydrophilic polymer according to claim 1 , wherein the ocular article is a contact lens or an intraocular lens.8. The silicone hydrogel according to claim 7 , wherein the reactive hydrophilic polymer is used in an amount of 1 to 10 wt % based on the total weight of the silicone hydrogel.9. The silicone hydrogel according to claim 8 , wherein the reactive hydrophilic polymer is used in an amount of 2 to 8 wt % based on the total weight of the silicone hydrogel.10. The silicone hydrogel according to claim 9 , wherein the reactive hydrophilic polymer is used in an amount of 3 to 5 wt % based on the total weight of the silicone hydrogel.11. The silicone hydrogel according to claim 7 , wherein the monomer mixture for the silicone hydrogel further comprises a hydrophilic monomer having a carbon-carbon double bond.12. The silicone hydrogel according to claim 11 , wherein the hydrophilic monomer having a carbon-carbon double bond is used in an amount of 30 to 68 wt % based on the total weight of the silicone hydrogel.13. The silicone hydrogel according to claim 12 , wherein the hydrophilic monomer having ...

Silicone hydrogel with high water content

The present invention provides a silicone hydrogel comprising a reaction product of a monomer mixture for forming the silicone hydrogel and water, wherein the water is present in an amount not less than 50 wt % based on the total weight of the silicone hydrogel. The monomer mixture comprises at least one silicon-containing monomer and at least one ionic monomer, wherein the ionic monomer is present in an amount not less than 0.7 wt % based on the total dry weight of the silicone hydrogel. The present invention also provides ocular articles made from the silicone hydrogel.

METHOD FOR ENHANCING WATER CONTENT OF SILICONE HYDROGEL CONTACT LENS

The present invention provides a method for producing a silicone hydrogel having a high water content. The method comprises the following steps: 1. A method for producing a silicone hydrogel having a high water content comprising the following steps:(a) polymerizing a monomer mixture to form the silicone hydrogel, wherein the monomer mixture comprises at least one silicon-containing monomer and at least One ionic monomer; and(b) placing the silicone hydrogel in an alkaline solution for at least 20 minutes,wherein the alkaline solution has a pH not less than 7.5 and the ionic monomer is present in an amount not less than 0.7 wt % based on the total dry weight of the silicone hydrogel.2. The method according to claim 1 , wherein the pH of the alkaline solution is in a range of 7.5 to 11.3. The method according to claim 2 , wherein the pH of the alkaline solution is in a range of 8 to 10.4. The method according to claim 1 , wherein the alkaline solution is prepared from a base selected from the group consisting of LiOH claim 1 , NaOH claim 1 , KOH claim 1 , Mg(OH) claim 1 , Ca(OH) claim 1 , NHOH claim 1 , NaCO claim 1 , KCO claim 1 , MgCO claim 1 , CaCO claim 1 , (NH)CO claim 1 , BaCO claim 1 , NaHCO claim 1 , KHCO claim 1 , CaO claim 1 , BaO claim 1 , NaNH claim 1 , KNH claim 1 , Mg(NH) claim 1 , Ca(NH) claim 1 , Zn(NH) claim 1 , and Al(NH) claim 1 , and a combination thereof.5. The method according to claim 4 , wherein the alkaline solution is NaOH or NaHCOsolution.6. The method according to claim 1 , wherein the silicone hydrogel is placed in the alkaline solution for 30 to 480 minutes.7. The method according to claim 1 , wherein the water content of the silicone hydrogel is not less than 50%.8. The method according to claim 1 , wherein the ionic monomer is present in an amount of 0.7 to 10 wt % based on the total dry weight of the silicone hydrogel.9. The method according to claim 8 , wherein the ionic monomer is present in an amount of 1 to 3 wt % based on the ...

Mouthwash composition

A mouthwash composition comprises water and a modified polyglutamic acid composed of a plurality of segment A and a plurality of segment B randomly arranged, in which, the segment A has a formula I: The segment B has a formula II: wherein X═H, Na, K, NH 4 , ½Ca, or ½Mg, and Y═Cl, Br, or I. The modified polyglutamic acid in the mouthwash composition is 0.1-5 wt %. The mouthwash composition in the present invention can eliminate bad breath, and also has antibacterial properties, so it can suppress the formation of dental plaque and is effective in preventing periodontal disease.

Wearable sensing device

A wearable sensing device is disclosed. The wearable sensing device includes a plurality of electrodes. A corresponding group of microprobes associated to each of the plurality of electrodes is provided. Each of the microprobes includes a plurality of piercers configured to penetrate the skin of the user.

Wearable sensing device

A wearable sensing device is disclosed. The wearable sensing device includes a plurality of electrodes (202R, 202W, 202C). A corresponding group of microprobes (202) associated to each of the plurality of electrodes (202R, 202W, 202C) is provided. Each of the microprobes includes a plurality of piercers (202-2) configured to penetrate the skin of the user.

Silicone hydrogel with high water content

Wearable sensing device

Method for producing silicone hydrogel with high water content

Amphiphilic graft copolymer and method for preparing the same, and substrate for tissue culture and method for producing the same

漱口水組成物

一種漱口水組成物，其組成包含水及一改質聚麩胺酸，改質聚麩胺酸係由複數個鏈段A及複數個鏈段B隨機排列所構成，鏈段A具有下列之化學式I：□鏈段B具有下列之化學式II：□其中，X為H、Na、K、NH4、1/2Ca或1/2Mg，Y為Cl、Br或I，且改質聚麩胺酸於該漱口水組成物中之濃度為0.1至5重量百分比。本發明所述之漱口水組成物除可治療口臭問題，其亦具有抗菌性，因此可以防止牙菌斑的生成，以及達到預防牙周病之效果。

Amphiphilic graft copolymer and method for preparing the same, and substrate for tissue culture and method for producing the same