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US 2016/0251533 A1Published application
Biobased membrane
AssigneesTechnische Universiteit Delft, Stichting voor de Technische Wetenschappen
InventorsEduardus Aloysius Bernardus Koenders, Jure Zlopasa, Stephen James Picken
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Abstract
A composition for forming a bio-compatible membrane applicable to building material, such as concrete, cement, etc., to a method of applying said composition for forming a biocompatible membrane, a biocompatible membrane, use of said membrane for various purposes, and to building material comprising said membrane.
Claims17
A method of forming a bio-compatible membrane comprising the steps of:
- providing a composition comprising (i) water, (ii) (a) a water-soluble anionic bio-degradable polymer and/or a synthetic acid polymer, and/or (ii) (b) one or more of an in water dissolvable silicate, either as such or in parts thereof,
- wherein the bio-degradable polymer and/or the synthetic acid polymer are/is in an amount of 1.5-64 wt. %, and/or the one or more silicate are/is in an amount of 0.01-18 wt. %,
- wherein the nanoparticles are in an amount of 0.01-64 wt. %, based on a total weight of the composition, with the proviso that if silicate is present, also nanoparticles are present,
- applying the composition onto a surface, the surface providing polyvalent cations, and
- reacting the (ii) (a) bio-degradable polymer and/or (ii) (b) silicate, and polyvalent cations, thereby forming a membrane layer on the surface.
2 more elements
An aqueous composition for forming a bio-compatible membrane comprising:
- (i) water,
- (ii) (a) a water-soluble anionic bio-degradable polymer, and/or a water-soluble synthetic acid polymer, wherein the polymer is capable of forming a gel in contact with polyvalent cations under ambient conditions, the polymer being dissolved in the liquid, and/or
- (ii) (b) one or more of an in water dissolvable cyclic and single chain silicate (SiO2+n2n−), pyrosilicate (Si2O76−), and components that form a silicate, wherein the silicate is capable of forming a glassy structure in contact with polyvalent cations under ambient conditions, and
- (iii) platelet nanoparticles, the nanoparticles being suspended in the liquid,
- wherein the bio-degradable polymer and/or the synthetic acid polymer are/is in an amount of 1.5-64 wt. %,
- wherein the one or more silicate are/is in an amount of 0.01-18 wt. %, and
- wherein the nanoparticles are present in an amount of 0.01-64 wt. %, based on a total weight of the composition.
4 more elements
Dependencies are inferred from the claim text.