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H&V was founded in 1843 [3] by John Mark and Lyman Hollingsworth, sons of Mark Hollingsworth, a foreman for the paper makers Jeremiah Smith Boies and Edmund Tileston.. The brothers found that paper made from a scrap pile of manila bolt ropes cut from old sails was very strong and suitable for industrial applications; they were granted a patent by the U.S. Patent Office for the manufacture of ...
Acetoxysilane-based RTV releases acetic acid during the curing process. The locally released acetic acid can attack solder joints , detaching solder from copper wire . The locally released acetic acid can discolor the plating on mirror backs years after installation, making this type of RTV unsuitable for use as a mirror adhesive.
However, because the preparation takes place above the melting point of the wax, the actual process is called emulsification, hence the name wax emulsion. In praxis, wax dispersion is used for solvent based systems. A wide range of emulsions based on different waxes and blends thereof are available, depending on the final application.
Solvothermal synthesis is a method of producing chemical compounds, in which a solvent containing reagents is put under high pressure and temperature in an autoclave. Many substances dissolve better in the same solvent in such conditions than at standard conditions , enabling reactions that would not otherwise occur and leading to new compounds ...
As a solvent, turpentine is used for thinning oil-based paints, for producing varnishes, and as a raw material for the chemical industry. Its use as a solvent in industrialized nations has largely been replaced by the much cheaper turpentine substitutes obtained from petroleum such as white spirit .
Solvent degreasing is a process used to prepare a part for further operations such as electroplating or painting. Typically it uses petroleum , chlorine , dry ice or alcohol based solvents to dissolve the machining fluids and other contaminants that might be on the part.
Most coatings have four basic components. These are the resin, solvent, pigment and additive systems [5] but the resin or binder is the key ingredient. Continuing environmental legislation in many countries along with geopolitics such as oil production are ensuring that chemists are increasingly turning to waterborne technology for paint/coatings and since resins or binders are the most ...
In chemistry, solvent effects are the influence of a solvent on chemical reactivity or molecular associations. Solvents can have an effect on solubility , stability and reaction rates and choosing the appropriate solvent allows for thermodynamic and kinetic control over a chemical reaction.