The Goodyear & Tire Rubber Company

Akron Device Technologies, LLC

Gordon R Schorr

Lawson G Wideman

George Frank Balogh

Denise Jeannette Keith

Thomas Kevin Milo

Peter P Seabase

Richard G Bauer

Donald J Burlett

Vetkav R Parameswaran

Pawan K Handa

Joseph W Miller, Jr

Colleen Marie Lansinger

Pradeep M Bapat

The subject invention relates to a power sprayer that offers flexibility of movement because it can be battery operated and is designed to eliminate the need for cleaning its spray nozzle after being used. Paint colors can be changed quickly by simply changing the media cartridges that are adapted for simple attachment to the sprayer. The media cartridges used in conjunction with the sprayers of this invention can also eliminate the inconvenience associated with refilling conventional power sprayers with a desired media. The present invention more specifically discloses a sprayer media cartridge system comprising: (a) a media container, (b) a self-cleaning nozzle, (c) a media shut-off means, (d) a primary media atomizing aperture in a configuration relative to the self-cleaning nozzle, (e) a movable media containment member within the media container, (f) a gas transfer interface, and (g) a power unit engagement means.

Sprayer and media cartridge therefor

The subject invention relates to a power sprayer that offers flexibility of movement because it can be battery operated and is designed to eliminate the need for cleaning its spray nozzle after being used. Paint colors can be changed quickly by simply changing the media cartridges that are adapted for simple attachment to the sprayer. These media cartridges also eliminate the inconvenience associated with refilling conventional power sprayers with a desired media. The present invention more specifically discloses a sprayer media cartridge system comprising: (a) a media container, (b) a self-cleaning nozzle, (c) a media shut-off means, (d) a primary media atomizing aperture in a configuration relative to the self-cleaning nozzle, (e) a movable media containment member within the media container, (f) a gas transfer interface, and (g) a power unit engagement means.

A continuous method for the in-situ polymerization of plastic in an elastomeric material in a form suitable for reinforcing the elastomeric material is provided. The method comprises feeding elastomer and a monomer or monomer precursor of a reinforcing material into a mixing device, mixing the elastomer and the monomer or monomer precursor vigorously, initiating polymerization, and causing the monomers to continue to polymerize until the polymer solidifies when the melting point of the polymer produced exceeds the mixing temperature of the elastomer, terminating polymerization.

Process for the in-situ formation of reinforcing members in an elastomer

The present invention relates to a process for the preparation of N-(hydroxyphenyl)maleamic acid and various dimers and oligomers thereof. The process is characterized by heating, in the absence of any solvent, N-(hydroxyphenyl)maleamic acid at a temperature ranging from about 150.degree. to about 250.degree. C. in the presence of an acid catalyst. This unique process avoids the need to recover expensive highly polar solvents. The present invention also relates to use of these maleimide containing compounds in rubber. The use of the blend of hydroxyphenyl maleimide and the various dimers and low molecular weight oligomers impart superior properties to rubber when compared to the use of hydroxyphenyl maleimide alone in rubber.

Process for the preparation of maleimide containing compounds

Rubber composition containing maleimide containing compounds

An elastomer masterbatch or a compounded productive elastomer stock is made using a twin screw extruder to mix elastomer components in multiple mixing zones at controlled temperatures. Elastomer and other ingredients are fed into the twin screw extruder continuously through precise loss-in-weight or volumetric feeders. The degradation temperature and/or cross linking temperature of the elastomer determines the rate at which the elastomer can be processed, since friction created during mixing heats the elastomer. Accordingly, the maximum rate of compounding is a function of the torque limit, cooling efficiency, and conveying capacity of the extruder. The conveying capacity and torque limit are also a function of the size of the extruder. The viscosity of the elastomer compound in the extruder, as measured by a Mooney viscosimeter (ASTM D1646), is typically in the range of about 20 to 250 units (ML(1+4)100C).

Continuous mixing of elastomeric compounds

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Uniontown, OH, United States of America

Gordon R Schorr