Technical documentation

Sterilization using high-pressure carbon dioxide

By:

Jian Zhanga

Sterility is required for medical devices use in invasive medical procedures, and for some situations in the food industry. Sterilization of heat- sensitive or porous materials or devices, such as endoscopes, porous implants, liquid foodstuff, and liquid medicine, poses a challenge to current technologies. There has been a steady interest in using high-pressure carbon dioxide as a process medium for new sterilization technology. Among the potential advantages are that CO2 may sterilize at low temperatures.

Cork Treatment - A New Industrial Application of Supercritical Fluids

By:

Microorganisms produce secondary metabolites like trichloroanisole (2,4,6-TCA), but also other unpleasant substances, which cause the typical “cork taint” in wine. This has led to serious problems for the cork industry in recent years and market share of cork stoppers decreased continuously. Conventional processes to reduce TCA content were only partly successful. Therefore a research program was started using supercritical CO2 in order to reduce the TCA content below the detectable limit.

Cyanoacrylate Tissue Adhesives with Desirable Permeable and Tensile Strenght

US20110117047

By:

Sheng Zhang

Rafael Ruiz

A sterilized cyanoacrylate adhesive composition including a cyanoacrylate composition and a cure speed enhancer, wherein said sterilized cyanoacrylate adhesive composition does not cure upon sterilization, and wherein the composition when cured to form a film on a patient's tissue has water vapor transmission rate from about 950 to about 3000 g/m2/day.

Cyanoacrylate Compositions with Vinyl Terminated Ester Groups

US6174919

By:

Timothy P. Hickey

An adhesiv ecompostion includes compounds having the following formula:

-----

wherein R1 is alkyl, alkoxy alkyl, anhydride, ether, ester, or amide, and R2 and R3 are hydrogen, alkyl, alkoxy alkyl, hydroxy, alkenyl, ester, carboxylic acid or ether and wherein R1 is optionally omitted where R2 and R3 are not both hydrogen.

Cosmetic Skin Treatment using Cyanoacrylate Polymer Film

US4752472

By:

Albert M. Kligman

A method for the cosmetic treatment of human skin, particularly facial skin, for the removal of materials from the surface and the sebaceous follicles is disclosed. The method comprises applying a layer of liquid polymerizable adhesive to the skin, then applying a pliable adhesive tape to cover the applied liquid adhesive and allowing the polymerization of said layer of polymerizable adhesive to take place and then removing the layer of polymerized adhesive from the skin by stripping the tape from the skin.

Methods for Curing Cyanoacrylate Adhesives

US6849082

By:

Max Azevedo

A new adhesive method using an adhesive composition including cyanoacrylate adhesive and a stabilizing agent to join together portions of a substrate, particularly useful in suturing and similar medical procedures, is disclosed.

Methods for Treating Non-Suturable Wounds by the Use of Cyanoacrylate Adhesives

US6342213

By:

A cyanoacrylate adhesive is applied to non-suturable, non-sterile wound surfaces to protect and/or treat such surfaces, to promote wound healing and to retard infection of the wound.

Fluorocyanoacrylates

US3639361

By:

Jerry E. Robertson

Joseph K. Harrington

Elden H. Banitt

Fluorinated cyanoacrylates having the formula:

-------

wherein R is hydrogen, methyl or ethyl, R' is fluorine, -CF3 or -(CF2)nH, and n is an integer from 1 to 3 have been found to be useful adhesives which when applied as monomers to adherends rapidly polymerize in the presence of even small amounts of e.g. moisture to form strong bonds. The monomers also polymerize to films and can be used biologically as hemostatics and tissue adhesives.

Antifungal Gypsum Board

US7473474

By:

William Toreki

Gerald Olderman

Gregory Staab

A novel improved gypsum board having improved antifungal properties is disclosed. The board comprises a gypsum core, front and back paper facings and a polymeric antifungal agent effective at inhibiting fungal growth. A preferred polymeric antifungal agent is polyDADMAC or polyTMMC. In addition to the polymeric antifungal agent, a non-polymeric antifungal agent, such as cetyl pyridinium chloride, sodium or zinc pyrithione, or both, may be included. The polymeric antifungal agent can be present in the gypsum core and/or on one or both of the paper facings.