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.

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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

Source: United States Patent and Trademark Office (USPTO). Credit: Materion Corp

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.

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GlobalData Patent Analytics tracks bibliographic data, legal events data, point in time patent ownerships, and backward and forward citations from global patenting offices. Textual analysis and official patent classifications are used to group patents into key thematic areas and link them to specific companies