Materion has filed a patent for an inorganic binder made with silica sol-gel. The binder can be used in light conversion systems, such as phosphor wheels, and has properties like high temperature resistance, high tensile-shear strength, and low curing temperatures. The binder includes silica sol-gel, water, a silane coupling agent, an alcohol-soluble solvent, and at least one filler. GlobalData’s report on Materion gives a 360-degree view of the company including its patenting strategy. Buy the report here.
According to GlobalData’s company profile on Materion, Ceramic composite laminates was a key innovation area identified from patents. Materion's grant share as of September 2023 was 57%. Grant share is based on the ratio of number of grants to total number of patents.
Inorganic binder made with silica sol-gel solution
A recently filed patent (Publication Number: US20230279267A1) describes an inorganic binder that can be used in various applications. The binder is composed of a silica sol-gel solution, a silane coupling agent, an alcohol-soluble solvent, and at least one filler. The silica sol-gel used in the binder is nano acidic and has a pH value of approximately 4-5. The silane coupling agent can be one or more of trimethoxy silane, triethoxy silane, tetramethyl silicate, and tetraethyl silicate. The alcohol-soluble solvent can be water, ethanol, isopropyl alcohol, ethylene glycol, or propylene glycol. The filler can include hydroxyl modified silicone resin, hydroxyl modified polymer resin, micro/nano calcium fluoride, micro/nano magnesium fluoride, micro/nano quartz, micro/nano low melting point glass powder, fumed silica, sodium silicate, silane chain extender, hydroxyl modified silicone oil, tetraethyl orthosilicate, and water-soluble polymer resin. The pH value of the binder is approximately 4.5.
The patent also describes a method for manufacturing the inorganic binder. The method involves adding the alcohol-soluble solvent and silane coupling agent to a container and mixing them to form a first solution. Silica sol-gel is then added to the first solution and mixed to form a second solution. One or more fillers are added to the second solution and mixed until any chemical reactions between the fillers and the solution are complete, forming a third solution. Excess water is then removed from the third solution. The mixing steps are performed at temperatures ranging from about 4°C to about 20°C for specific periods of time. The pH of the third solution is tested and adjusted to a value of 4.5 before removing excess water.
Overall, this patent presents an inorganic binder formulation and a method for its manufacturing. The binder offers versatility in its composition, with various options for the silica sol-gel, silane coupling agent, alcohol-soluble solvent, and fillers. The method provides specific temperature and time parameters for each mixing step, ensuring proper formation of the binder. The resulting binder has a pH value of approximately 4.5, making it suitable for a range of applications.