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US 2015/0084223 A1Published application
Composition for latex pad, producing method thereof, and the latex pads made therefrom
AssigneeDer You Enterprise Co., Ltd.
InventorChin-Sheng Lin
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Abstract
The present invention relates to a composition for preparation of latex pads, comprising natural latex, artificial latex, sliver nanoparticles, zinc oxide nanoparticles, and active carbon mixed in a specified proportion. The present invention also provides a method for manufacturing latex pads from the composition.
Claims7
A composition for producing latex pads, comprising
- about 20 parts by weight of natural latex, containing about 50% of water;
- about 80 parts by weight of artificial latex, containing about 40% of water;
- about 3% by weight of sliver nanoparticles, based on the total weight of the natural latex and the artificial latex;
- about 5% by weight of zinc oxide nanoparticles, based on the total weight of the natural latex, the artificial latex and the sliver nanoparticles;
- and
- about 5% by weight of active carbon, based on the total weight of the natural latex, the artificial latex, the sliver nanoparticles and the zinc oxide nanoparticles.
3 more elements
A method for producing latex pad, comprising:
- (step 1) mixing a natural latex with about 50% moisture content and an artificial latex with about 40% moisture content at a proportion of about 20 parts to 80 parts (by weight) in an agitating machine at a stirring speed of 1200 rpm for 20 minutes to obtain a mixture of latexes;
- (step 2) adding sliver nanoparticles to the mixture of latexes obtained in step 1 at a proportion of about 3% (by weight) to the total weight of the mixture of latexes, and stirring continuously at a speed of 1200 rpm for 30 minutes until the sliver nanoparticles are evenly dispersed in the latexes to form a nano silver-latex mixture;
- (step 3) adding zinc oxide nanoparticles to the nano silver-latex mixture obtained in step 2 at a proportion of about 5% (by weight) to the total weight of the nano silver-latex mixture, and stirring continuously at a speed of 1200 rpm for 15 minutes until the zinc oxide nanoparticles are evenly dispersed in the latexes to form a nano zinc oxide-nano silver-latex mixture;
- (step 4) adding active carbon to the nano zinc oxide-nano silver-latex mixture obtained in step 3 at a proportion of about 5% (by weight) to the total weight of the nano zinc oxide-nano silver-latex mixture, and stirring at a speed of 1200-1600 rpm for 6 minutes to form an active carbon-nano zinc oxide-nano silver-latex mixture;
- (step 5) adding a vulcanizing promoter to the active carbon-nano zinc oxide-nano silver-latex mixture obtained in step 4 at a proportion of about 5% (by weight) to the total weight of the active carbon-nano zinc oxide-nano silver-latex mixture, and stirring at a speed of 1200-1600 rpm for 5 minutes to form a composition for producing latex pads;
- (step 6) pouring the composition prepared in the step 5 into a storage tank, and subjecting it to a foaming process to form a foamed material;
- (step 7) pouring the foamed material into a coating machine, then plating the foamed material onto a conveying platform via the coating machine, and leveling down the plated foamed material by scraping;
- (step 8) transferring the scraped foamed material obtained in step 7 into a high temperature oven by the conveying platform at a speed of 3 m/min, and solidifying the surface of the foamed material at 265° C. to form a surface fixed material;
- (step 9) transferring the surface fixed material into an oven by the conveying platform at a speed of 3 m/min, and bake ripening the material at 165° C. to form a ripened material;
- (step 10) transferring the ripened material into a cold roller by the conveying platform at a speed of 3 m/min, and carrying out pressure roll cooling process at 20° C. to form a latex pad;
- (step 11) covering the surface of latex pad with an isolation membrane made of polyethylene (PE), and winding the latex pad together with the isolation membrane into a coil of latex pad.
8 more elements
Dependencies are inferred from the claim text.