TH83126A - Foam and foam manufacturing process from gelatin and stockings - Google Patents

Abstract

DC60 (22/10/47) Biodegradable foam made from gelatin and used//or discarded stockings from the sock manufacturing process can be prepared using a continuous process. This involves mixing gelatin and stockings with water as a solvent, resulting in a final mixture that is poured into molds and left to dry naturally or accelerated in an oven. The resulting foam will have different properties and characteristics depending on the amount of gelatin and stockings used, the mixing time and stirring cycles, as well as the type and quantity of additives used.

Claims (20)

Updated 8/11/62. No claims made........................... 1. The process of making foam from gelatin and stockings consists of: 1.1 Mixing gelatin with stockings, using water as a solvent throughout the process, resulting in a final liquid mixture. 1.2 Pour the final mixture obtained from the modification in step 1.1 into a mold and allow it to dry at room temperature (normal atmosphere). For faster drying, place it in an oven at a temperature between 40-70 degrees Celsius, with the optimal range being 50-60 degrees Celsius. 1.3 Once dry, remove the foam from the mold. 2. The foam production process under claim 1, which involves mixing gelatin with stockings, consists of: 2.1 Taking used and/or discarded stockings from the stocking manufacturing process, removing impurities and other contaminants by dissolving them in an acid solution and precipitating them with an alkaline (base) solution, then drying them at 50-80 degrees Celsius. This process is repeated 1-2 times. 2.2 Weighing the gelatin (which may or may not have been dried), and then dissolving it in water while stirring and heating. 2.3 Once the gelatin is completely dissolved, adding the stockings while stirring and heating, and timing the mixing process. The pH of the solution is adjusted to the desired range using an acid solution. If any modifying or emulsifying agents are to be added, they should be added at this stage. 2.4 After the specified time, the pH is adjusted using an alkaline solution. The final mixture will be a liquid. 3. The foam manufacturing process under claim 2 directly uses 10-35% gelatin by weight of water. 4. The foam manufacturing process under claim 2 directly uses 20-30% gelatin by weight of water. 5. The foam manufacturing process under claim 2 directly uses a stocking quantity of 1-50 parts per hundred parts of resin by weight (phr). 6. The foam manufacturing process under claim 2 directly uses a stirring temperature of 40-70 degrees Celsius. 7. The foam manufacturing process under claim 2 directly uses a stirring temperature of 50-60 degrees Celsius. 8. The foam production process under claim 2 directly involves a mixing time of 30-150 minutes. 9. The foam production process under claim 2 directly involves a mixing time of 60-120 minutes. 10. The foam manufacturing process under claim 2 directly uses a stirring speed of 400-900 revolutions per minute. 11. The foam manufacturing process under claim 2 directly uses a stirring speed of 500-700 revolutions per minute. 12. The foam manufacturing process under claim 2 involves adjusting the pH of the solution to be in the range of 4.0-6.0. 13. The foam manufacturing process under claim 2 involves adjusting the pH of the solution to 4.5. 14. The foam manufacturing process under claim 2 involves adjusting the pH of the final mixture to the range of 7.0-9.0. 15. The foam manufacturing process under claim 2 involves adjusting the pH of the final mixture to the range of 7.0-7.5. 16. The foam manufacturing process under Patent 1, which also includes the coloring of the prepared foam by adding pigments, dyes, or food coloring to the final mixture, immediately after pH adjustment, stirring thoroughly, and then pouring into molds. 17. The foam manufacturing process under claim 1, where it mentions a mold made from an acrylic sheet. 18. The foam manufacturing process described in claim 1, specifically the part mentioning the use of polystyrene molds, 19. The foam manufacturing process under claim 2, where the additive is mentioned, is acid anhydride. 20. Foam obtained from the process under claim 1, prepared from gelatin and used stockings and/or stockings that are waste from the stockings manufacturing process.