Chung Yuan Christian University

Yeu Ming Tai Chemical Industrial Co., Ltd.

Da-Ming Wang

Juin-Yih Lai

Kueir-Rarn Lee

James Huang

William Chou

David Chou

Ruoh-Chyu Ruaan

Tian-Tsair Wu

Yung Chang

Yu-Ju Shih

Bor-Shiunn Lee

Tien-Hsiang Hsueh

Ruoh-chyu Ruaan

Chia-Hao Lo

Yu-Huei Su

Pei-Yun Kuo

Juin-Yig Lai

Yung-Hsin Lee

James Yeu Ming Tai Chemical Indus Co Ltd Huang

William Yeu Ming Tai Chemical Indu Co Ltd Chou

David Yeu Ming Tai Chemical Indus Co Ltd Chou

A dental care product comprises an orally acceptable carrier or excipient, and a bacterial resistance copolymer, which comprises a zwitterionic block and a charged anchoring block, wherein the anchoring block binds to tooth surfaces by electrostatic attraction, and the zwitterionic block extends outwardly to reduce the attachment of bacteria to tooth surfaces.

Dental care product with two-part formulations and utility thereof

Dental care product

The present invention discloses discloses a composite PTFE membrane comprising an expanded PTFE membrane as substrate and a sintered porous PTFE membrane on top of it. The porous PTFE membrane on top has porous structure with interconnected channels formed with a sintering process that fuses the PTFE fine powders coated on the ePTFE membrane. Furthermore, the present invention discloses a method for forming the composite PTFE membrane.

Composite membrane and method for forming the same

The present invention provides an asymmetric porous PTFE membrane for a filter having little change over time and conventionally known properties of a porous PTFE molded article such as water permeability resistance, air permeability, sealing properties and electric properties, in which collection efficiency, air permeability and pressure loss are improved. Specifically, the present invention relates to an asymmetric porous PTFE membrane for a filter comprising a dense skin layer and a continuously foamed porous layer, wherein

Asymmetric porous polytetrafluoroethylene membrane for a filter

The present invention provides an asymmetric porous PTFE membrane for clothing having little change over time and conventionally known properties of a porous PTFE molded article such as water permeability resistance, air permeability, sealing properties and electric properties, in which durability and water vapor permeability are improved by strengthening adhesion strength with fabric. Specifically, the present invention relates to an asymmetric porous PTFE membrane for clothing comprising a dense skin layer and a continuously foamed porous layer, wherein (1) the contact angle of water to the surface of the skin layer is 120 to 140&#xb0;; and (2) the diffuse reflectance of light of the skin layer is 91 to 94%.

Asymmetric porous polytetrafluoroethylene membrane for clothing

A chitosan membrane containing nanosize particles is disclosed in this invention. The chitosan membrane comprises a chitosan membrane and nano-inorganic particles. The nano-inorganic particles are uniformly embedded in the chitosan membrane. This invention also discloses a method for forming a chitosan membrane containing nanosize particles. The method comprises a grinding process, a dissolution process, a dispersion process, a blending process, an impurity removing process, a degassing process, a casting process, and a fixation process.

Chitosan membrane containing nano-inorganic particles and the method for forming the same

The present invention relates to an asymmetric porous polytetrafluoroethylene membrane comprising a dense skin layer and a continuously foamed porous layer, (1) the dense skin layer having a surface roughness Ra of 20 to 165 nm; (2) the dense skin layer having a contact angle for water of 120 to 135&#xb0;; (3) the porous layer having a maximum pore diameter of 0.03 to 1.0 &#x3bc;m; and (4) the membrane having a total porosity of 20 to 70%. The asymmetric porous PTFE membrane has an ability to separate each liquid component from a liquid-liquid homogeneous mixture in addition to known properties such as water permeability resistance, gas permeability, sealing property and electric property, wherein change of these properties over time is small.

Asymmetric porous polytetrafluoroethylene membrane and process for preparing the same

Growing community of inventors

Taoyuan, Taiwan

Da-Ming Wang