United States Patent
US Patent 5080292: Method for pulverizing gelatin, and paint…
US 5080292 · granted 1992-01-14
Abstract
This invention relates to a method for pulverizing gelatin and to products in which pulverized gelatin is used. The present invention relates to a method for pulverizing hydrophilic and water-soluble dry gelatin with relatively high jelly strength using as a medium hydrophilic organic solvent dimethylformamide or organic solvent admixed with dimethylformamide in an atmosphere where moisture is shut out. It further relates to paints containing synthetic resin solutions in dimethylformamide or the organic solvent admixed with dimethylformamide which contains gelatin particles pulverized into 30 microns or smaller in size by the invention method. It provides paint layers, coating layers, films and finished cloths that are formed by using said paints and synthetic resin solutions. By eluting gelatin particles with hot water, paint layers, coating layers, film and finished cloths with excellent moisture permeability can be obtained.
| Patent Number | 5080292 |
|---|---|
| Title | Method for pulverizing gelatin, and paint, coating layer, film and finished cloth |
| Filed | 1989-02-16 |
| Granted | 1992-01-14 |
| Inventor(s) | Nishibori; Sadao |
| Number of Claims | 46 |
Abstract
This invention relates to a method for pulverizing gelatin and to products in which pulverized gelatin is used. The present invention relates to a method for pulverizing hydrophilic and water-soluble dry gelatin with relatively high jelly strength using as a medium hydrophilic organic solvent dimethylformamide or organic solvent admixed with dimethylformamide in an atmosphere where moisture is shut out. It further relates to paints containing synthetic resin solutions in dimethylformamide or the organic solvent admixed with dimethylformamide which contains gelatin particles pulverized into 30 microns or smaller in size by the invention method. It provides paint layers, coating layers, films and finished cloths that are formed by using said paints and synthetic resin solutions. By eluting gelatin particles with hot water, paint layers, coating layers, film and finished cloths with excellent moisture permeability can be obtained.
Claim 1
A method of pulverizing hydrophilic, water-soluble gelatin, comprising the steps of: a) providing a predetermined quantity of gelatin; b) drying said gelatin so as to contain a water-content not exceeding 12 wt %; c) providing a wet pulverizing apparatus including a substantially moisture-free pulverizing chamber; d) charging the chamber of said pulverizing apparatus with a predetermined quantity of an organic solvent and said dried gelatin, said organic solvent selected from the group consisting of dimethylformamide and a dimethylformamide containingsolvent; and e) wet pulverizing said dried gelatin for a predetermined time period so as to obtain gelatin particles in a predetermined size range.
Claims
46 totalA method of pulverizing hydrophilic, water-soluble gelatin, comprising the steps of: a) providing a predetermined quantity of gelatin; b) drying said gelatin so as to contain a water-content not exceeding 12 wt %; c) providing a wet pulverizing apparatus including a substantially moisture-free pulverizing chamber; d) charging the chamber of said pulverizing apparatus with a predetermined quantity of an organic solvent and said dried gelatin, said organic solvent selected from the group consisting of dimethylformamide and a dimethylformamide containingsolvent; and e) wet pulverizing said dried gelatin for a predetermined time period so as to obtain gelatin particles in a predetermined size range.