Fluid-carbon International Ab

The Procter Gamble Company

Gs Development Ab

Berol Nobel Ab

Berol Nobel Stenungsund Ab

Bioactive Polymers Ab

Drilletten Ab

Bjorn Lindman

Kare V Larsson

Sven Engstrom

Anders Carlsson

Krister A Holmberg

Douglas Joseph Dobrozsi

Stig Bengmark

Paschalis Alexandridis

Jerry William Hayes, Ii

Lars L Stigsson

Roland Andersson

Carina Andren

Martin Malmsten

Olle Stenberg

Rouja Hristova Ivanova

The invention relates to a biodegradable barrier network comprising at least two macromolecular substances, one being anionic and the other one cationic. The invention also relates to applicators and kits comprising components to be used to create said biodegradable barrier network. The invention also relates to the use of said applicator or kit in therapy, such as in medicine, veterinary medicine and horticulture.

Surface protection of exposed biological tissues

The present invention covers pourable liquid vehicles that can be combined with compositions, materials and substances. Among the benefits of such pourable liquid vehicles is the compositions are retained on the moistened surface for a period of time sufficient to allow compositions, materials and substances to act on said surface, resisting erosion or run-off from additional moisture being applied. Such pourable liquid vehicles have a number of utilities including but not limited to cleaning and treating surfaces of objects as well as biological or living organisms, including living creatures.

Pourable liquid vehicles

A method and product for preparing a controlled-release composition are provided. The method comprises formation of a mixture containing at least one amphiphilic substance capable of forming a liquid crystalline phase, in contact with a liquid selected from the group consisting of water, glycerol, ethylene glycol, propylene glycol and mixtures thereof. The method includes a step of providing in such mixture a bioactive material.

Method of preparing controlled-release preparations for biologically

The invention relates to a controlled-release composition for a biologically active material, wherein said active material has been dissolved or dispersed in an L2-phase comprising

Controlled release composition for a biologically active material

The invention relates to a method in a water-base system for at least partially avoiding an expected viscosity decrease or providing a viscosity increase upon a temperature increase, by using a system containing as viscosity-adjusting agents a nonionic cellulose ether in such an amount that the aqueous solution thereof has a viscosity of 10-10,000 cP, measured according to Brookfield LV, 12 rpm at 20.degree. C., and an ionic surface-active compound in an amount of 1-30 mmol per liter of water.

Use of viscosity-adjusting agent to counteract viscosity decrease upon

A process for covalently bonding biopolymer, such as protein, to an organic polymer surface coated with hydrophilic nonionic polymer having groups reactive with the biopolymer and having a cloud point in the reaction medium that is at least 5.degree. C. above the temperature at which the coated organic polymer surface is to be used, which comprises reacting biopolymer with the surface in an aqueous reaction medium, at a temperature not less than 5.degree. C. below the cloud point; but not above a temperature at which the biopolymer is deleteriously affected, and preferably not above about 100.degree. C., the product comprises a biopolymer immobilized on a hydrophilic solid surface having a nonionic polymer and a hydrophilic layer, coupled thereto via biopolymer-reactive groups of the nonionic polymer, and accordingly has low spontaneous adsorption of proteins and other biopolymers through electrostatic attraction and/or hydrophobic interaction.

Method of covalently bonding biopolymer to a solid hydrophilic organic

A method and product for preparing a controlled-release composition are provided. The method comprises formation of a mixture containing at least one amphiphilic substance capable of forming a liquid crystalline phase, in contact with a liquid selected from the group consisting of water, glycerol, ethylene glycol, propylene glycol and mixtures thereof. The method includes a step of providing in such mixture a bioactive material. Preferred controlled-release compositions include an alkylbetaine zwitterionic surfactant therein.

A storage stable aqueous pulverized-coal dispersion can be pumped and can be burned by conventional techniques. The dispersion comprises stabilizing additives and a coal content which ranges from 60 to 80% by weight. The additives include a combination of (a) sufficient lecithin adsorbed on surfaces of coal particles to provide repulsion between the coal particles by hydration forces and (b) polymer cooperating with the lecithin and comprising at least one polymer having segments of hydrophobic as well as segments of hydrophilic character.

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Lund, Sweden

Bjorn Lindman