Ppg Industries Ohio, Inc.

Other

Bryan W Wilkinson

Cynthia Kutchko

Eric S Epstein

Michael A Bubas

Renhe Lin

Brian Chiang

Scott J Moravek

Brian K Rearick

Zhisong Huang

Weibin Cui

Daniel Connor

Gerardo Zuniga

Sean J Manion

Marc K Marks

Rocque A Kavanagh

Kerianne M Dobosz

Kevin C Green

John E DeForrest

Pete P Casares

Domingo V Aguillen, Jr

Compositions comprising a combination of low molecular weight prepolymers and high molecular weight prepolymers are disclosed. The compositions are used to fabricate elastomeric articles having high tensile strength and high tensile elongation.

Elastomeric compositions and methods of use

Methods of fabricating seal caps using three-dimensional printing are disclosed. The seal caps are useful for sealing fasteners.

3D printing of seal caps

Sealing components having complex shapes and smooth surfaces are may be fabricated using coreactive three-dimensional printing. More specifically the invention relates to chemically resistant sealing components and methods of making said sealing components using three-dimensional printing, and that may be used in vehicle applications.

Methods of making chemically resistant sealing components

Additive manufacturing compositions and methods may include a resin stabilized pigment. The pigment may be easily combined with at least one component of a co-reactive system, such as a co-reactive prepolymer formulation, via solid mixing without the need for grinding or additional solvents. The prepolymer formulation may be pigmented, printed, and cured under ambient conditions, and one or more pigments may be incorporated into the composition to change the color of the composition during printing and/or to selectively change the color of the printed article among several colors.

Additive manufacturing compositions and methods including resin stabilized pigments

Methods of making multilayer systems comprising a sealant layer by extruding a coreactive sealant composition are disclosed. The methods can be used to fabricate multilayer systems in which individual layers have different cured properties. Individual layers can also have an inhomogeneous concentration of one or more constituents within a layer. The multilayer systems can be made using three-dimensional printing that facilitate the use of a wide range of coreactive compositions.

Multilayer systems and methods of making multilayer systems

A plastic-pipe puller tool for installing subterranean utility pipes has a shaft portion, one tapered end on the shaft portion for snugly fitting within the inner wall of the plastic pipe to be installed and a second coupling end which may have a coupler which is rotatably supported from the shaft portion, to permit rapid and easy joining of the plastic pipe to the pipe-pulling means, whether a bore-pipe or a pneumatic hose.

Plastic-pipe pulling tool

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Pittsburgh, PA, United States of America

Bryan W Wilkinson