Polymate Ltd

Migdal Ha‘Emeq, Israel

Polymate Ltd

Migdal Ha‘Emeq, Israel
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Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2015-09-22

Proposed is a method of producing soluble silicates with organic cations at a given silicate modulus in the range of 1.5 to 20. The method consists of the reacting liquid suspension of a silica sol with the aqueous solution of a strong organic base. The silicate modulus is a molar ratio of SiO_(2):M_(2)O, wherein M is an organic alkali cation. The aqueous solution of a strong organic base has a constant of base dissociation pK_(b )equal to or greater than 4. If necessary, the soluble silicates with organic cations are obtained in a powdered form by evaporating the solution of the soluble silicates under vacuum below 4.2 kPa and at a temperature in the range of 20 to 30 C. and the product of evaporation are then dried by spraying.


Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2012-04-09

Method of manufacturing track membranes by penetration of working substances into and through the membrane matrix of polymer material is disclosed. The matrix is placed into holder that is inserted into one end of a tubular shell, the other end of which contains a cartridge with an explosive material and a working substance in the form of a supersaturated solution of a water-soluble salt. When the explosive material is detonated, the particles of the water-soluble salt interact with the matrix in the form of a high-speed jet with the velocity of particles in the range of 3800 to 4200 m/sec. As a result of penetrating of the particles into and through the material of the matrix, a plurality of holes is formed in the matrix. The track membranes are produced by slicing the membrane matrix after removal of the residue of the particles by washing the pierced membrane with water.


A method of obtaining hybrid polyhydroxyurethane compositions cross-linked at ambient temperatures. The method comprises: (a) reacting epoxidized unsaturated fatty acid triglycerides with carbon dioxide in the presence of a catalyst to obtain carbonated-epoxidized unsaturated fatty acid triglycerides, wherein conversion of oxyrane groups to 2-oxo-1,3-dioxolane groups (cyclic carbonate groups) for said carbonated-epoxidized unsaturated fatty acid triglycerides ranges from 35% to 85%; (b) mixing and reacting the carbonated-epoxidized unsaturated fatty acid triglycerides with a compound having amine functionality comprising at least one primary amine group realized at stoichiometric or within nearly balanced stoichiometry; (c) mixing and reacting the product of step (b) with a compound having amine functionality comprising at least two primary amine groups realized at excess of an amine-functional compound; (d) subsequently mixing the product of step (c) with a compound having amino-reactive groups.


Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2010-12-29

A method and apparatus for manufacturing a submicron polymer powder from solid polymer bodies or coarse particles, preferably of polytetrafluoroethylene powder, wherein powder is ground into fibrous particles in the first stage and is disintegrated into submicron particles by aerodynamic treatment in the second stage, where a gas-particle mixture is subject to the effect of centrifugal forces and suction forces acting in the direction opposite to the centrifugal forces, a pulsating sign-alternating temperature field generated by a pulsed supply of liquid nitrogen, turbulent forces of vortexes, and aerodynamic forces that cause alternating compression and expansion of the gas-particle mixture.


Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2014-06-05

Described is a linear hybrid epoxy-amine hydroxyurethane-grafted polymer with the following structure of the polymer backbone unit: where R is a residue of a diglycidyl ether (epoxy resin); R^(1 )is a residue of a di-primary amine; R^(2 )and R^(3 )are residues of monocyclic carbonate and are selected from the group consisting of H, alkyl C_(1)-C_(2), and hydroxymethyl; and at least one of R^(2 )and R^(3 )is hydrogen. The described polymer may be used in manufacturing of liquid leather materials.


Patent
Nanotech Industries Inc. and Polymate Ltd. | Date: 2013-02-19

Provided is a method for the spray application of a nonisocyanate polymer foam composition. The method comprises the steps of supplying dosed quantities of the components of the nonisocyanate polymer composition to the mixing chamber where the components react with each other and form a foamable nonisocyanate polymer composition, transferring the foamable nonisocyanate polymer composition to the intermediate chamber of a foam application apparatus and continuously moving the foamable nonisocyanate polymer composition through the intermediate chamber while constantly controlling the parameters of the foamable nonisocyanate polymer composition in the intermediate chamber for providing conditions most optimal for the spray application onto the substrate.


Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2016-05-04

Described is a linear hybrid epoxy-amine hydroxyurethane-grafted polymer with the following structure of the polymer backbone unit: where R is a residue of a diglycidyl ether (epoxy resin); R^(1 )is a residue of a di-primary amine; R^(2 )and R^(3 )are residues of monocyclic carbonate and are selected from the group consisting of H, alkyl C_(1)-C_(2), and hydroxymethyl; and at least one of R^(2 )and R^(3 )is hydrogen. The described polymer may be used in manufacturing of liquid leather materials.


Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2016-05-04

Described is a linear hybrid epoxy-amine hydroxyurethane-grafted polymer with the following structure of the polymer backbone unit: where R is a residue of a diglycidyl ether (epoxy resin); R^(1 )is a residue of a di-primary amine; R^(2 )and R^(3 )are residues of monocyclic carbonate and are selected from the group consisting of H, alkyl C_(1)-C_(2), and hydroxymethyl; and at least one of R^(2 )and R^(3 )is hydrogen. The described polymer may be used in manufacturing of liquid leather materials.


Patent
Polymate Ltd. and Nanotech Industries Inc. | Date: 2016-05-04

Described is a linear hybrid epoxy-amine hydroxyurethane-grafted polymer with the following structure of the polymer backbone unit: where R is a residue of a diglycidyl ether (epoxy resin); R^(1 )is a residue of a di-primary amine; R^(2 )and R^(3 )are residues of monocyclic carbonate and are selected from the group consisting of H, alkyl C_(1)-C_(2), and hydroxymethyl; and at least one of R^(2 )and R^(3 )is hydrogen. The described polymer may be used in manufacturing of liquid leather materials.


Ioelovich M.,Polymate Ltd | Leykin A.,Polymate Ltd
BioResources | Year: 2011

The sorption of vapors by cellulose samples and by some cellulose derivatives was studied at 25 ° C. To describe sorption isotherms, a thermodynamic equation was proposed: A=A o/[1-(RT/g)lnφ], where A o is maximal sorption value, φ is relative pressure of vapors, and g is specific thermodynamic potential. Depending on the g-value, this equation can describe isotherms of various shapes that occur for cellulose and its derivatives. Application of the equation makes it possible to calculate such structural characteristics of the polymers as accessible specific surface and crystallinity, as well as the substitution degree of cellulose derivatives. Moreover, amounts of monomolecular and multimolecular fractions of the sorbate can be determined.

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