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US 2022/0185683 A1Published application
Methods for Producing Seed for Growth of Hollow Spheres
OwnerDavid Charles Lynchinventor
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Abstract
Methods and apparatus are disclosed for producing seeds that are transformed into hollow spheres. A seed includes a core and a coating. Upon heating, the coating becomes viscous and expands responsive to an internal gas pressure created by the core. Example applications for the seeds and/or cores are disclosed, including bricks and other construction materials having the hollow spheres incorporated therein.
Claims36
A method for producing a seed capable of transformation into a hollow structure, said method including:
- providing a core having a particular composition that when heated reacts to generate a gas;
- and
- forming a coating around said core, said coating having a particular composition that when heated will fuse to form a continuous shell surrounding said core and trapping said gas generated by said core within said shell;
- and wherein
- said trapped gas will produce a temperature dependent pressure within said shell;
- said particular composition of said coating has a temperature dependent viscosity;
- a first temperature corresponds to a working point of said particular composition of said coating;
- a second temperature corresponds to a fluid point of said particular composition of said coating;
- a third temperature corresponds to an equilibrium point where said pressure generated by said trapped gas within said shell is equal to a pressure outside of said shell;
- and
- said particular composition of said core and said particular composition of said coating are selected so that said third temperature is greater than or equal to said first temperature, and said third temperature is less than said second temperature.
8 more elements
A method for producing an article of manufacture having hollow spheres embedded therein, said method including:
- providing a base material that, when heated to a particular manufacturing temperature, transforms into a finished material;
- providing seeds that when heated transform into hollow spheres;
- mixing said seeds with said base material to form a mixture of said seeds and said base material;
- and
- heating said mixture to said manufacturing temperature to form a composite of said finished material with said hollow spheres embedded therein.
2 more elements
Dependencies are inferred from the claim text.