330results about "Lens cleaning compositions" patented technology

Cleaning compositions for contact lenses are described. The compositions contain multifunctional anionic surfactants that include at least two hydrophilic dissociating head groups. The multifunctional surfactants described (e.g., LED3A) possess both surface active and chelating properties, and have been found to be particularly effective in removing protein deposits from contact lenses.

The invention relates to modified polypeptides with reduced allergenicity comprising a parent polypeptide with a molecular weight from between 10 kDa and 100 kDa conjugated to a polymer with a molecular weight (Mr) in the range of 1 kDa and 60 kDa. The modified polypeptide are produced using a process including the step of conjugating from 1 to 30 polymer molecules with the parent polypeptide. Further the invention relates to compositions comprising said polypeptides and further ingredients normally used in e.g. detergents, including dishwashing detergents and soap bars, household article, agrochemicals, personal care products, cosmetics, toiletries, oral and dermal pharmaceuticals, composition for treating textiles, and compositions used for manufacturing food and feed. Finally the invention is directed to uses of polypeptides with reduced allergenicity or compositions thereof for reducing the allergenicity of products for a vast number of industrial applications.

The present invention relates to a method for reducing the occurrence of superficial punctate staining comprising the step of packaging, storing or contacting an uncoated ophthalmic lens comprising at least one polymeric wetting agent and polymer units derived from at least one silicone containing component in a solution comprising an osmolality of about 220 mOsm / kg or greater.

Methods of reducing the adherence of lenses to hydrophobic packing materials using compounds of Formula I are disclosed herein, where R1-R12, a, b, z, x, q, m, and n are defined herein

The use of a composition of one or more cationic polysaccharides in combination with one or more antimicrobial agents to disinfect contact lenses and preserve ophthalmic lens compositions is described. Ophthalmic lens solutions containing compositions of one or more cationic polysaccharides in combination with one or more antimicrobial agents and methods of making and using the same are also described.

The present invention provides a combined formulation for disinfecting, neutralizing and cleaning a soft contact lens and a method using the same easily, efficiently and safely. The formulation is a one-solution type of combined formulation for disinfecting, neutralizing and cleaning a soft contact lens, which includes a first formulation that contains an iodine-based disinfectant and a proteolytic enzyme and a second formulation that contains a reducing and a foaming agent treated with a delayed release coating, and which contains a nonionic surfactant in at least one of the first and second formulations. A stained soft contact lens can be disinfected, neutralized and cleaned easily by holding it in an aqueous solution colored yellow or brown by iodine molecules and removing it from the aqueous solution after the solution becomes almost colorless.

A method of cleaning or protecting surfaces by treatment with compositions comprising N-(3-oxododecanoyl)-L-homoserine lactone (OdDHL) blocking compounds and / or N-butyryl-L-homoserine lactone (BHL) analogs, either in combination or separately.

Methods of heat sterilizing polymers are disclosed. The methods involve the preparation of a polymer suspension in an water-miscible organic liquid and subsequent application of moderate heat for a period of time sufficient to sterilize the polymer.

Ophthalmic compositions that comprise 0.1 ppm to 50 ppm of a cationic antimicrobial component selected from the group consisting of biguanides, polymeric biguanides, quaternium ammonium compounds and any one mixture thereof; 0.005 wt. % to 2 wt. % of an anionic biopolymer; and 0.01 wt. % to 2 wt. % of an amphoteric surfactant of general formula Iwherein R1 is R or —(CH2)n—NHC(O)R, wherein R is a C8-C30alkyl optionally substituted with hydroxyl and n is 2, 3 or 4; R2 and R3 are each independently selected from C1-C4alkyl; R4 is a C2-C8alkylene optionally substituted with hydroxyl; and Y is CO2− or SO3. The invention is also direct to the use of the ophthalmic compositions to clean and disinfect contact lenses, and in particular, soft, silicone hydrogel contact lenses.

A composition for disinfecting a contact lens comprising an effective disinfecting amount of hydrogen peroxide and a surfactant comprising a copolymer of hydrophobe and hydrophile blocks the structure:HO-(hydrophobe)x-(hydrophile)y-(hydrophobe)x-HorHO-(hydrophile)y-(hydrophobe)x-(hydrophile)y-Hwhere x and y are integers reflecting the respective hydrophile and hydrophobe blocks of said copolymer; and the hydrophile component of the block copolymer constitutes less than 50 weight percent of the block copolymer. The block copolymer has a Ross-Miles foam height (ASTM designation D-1173-53; 0.1%, at 50° C.) of less than 1 mm.

A process for treating biomedical devices, especially contact lenses, involves contacting polymeric devices containing extractables with a solvent that dissolves and thereby removes the extractables from the device, treating the solvent to remove extractables from the solvent, thereby purifying the solvent, and using the purified solvent to remove additional extractables from polymeric devices.