Ppg Industries Ohio, Inc.

Eric S Epstein

Renhe Lin

Hong Li

Cynthia Kutchko

Calum Hugh Munro

Scott J Moravek

Brian K Rearick

Lorraine Melody Hsu

Zhisong Huang

Weibin Cui

Gobinda Saha

Allison G Condie

Bryan W Wilkinson

Daniel Connor

Maria S French

Shuyu Fang

Bryan Wilkinson

Michael A Bubas

Sean J Manion

Kerianne M Dobosz

Liang Ma

Brian Chiang

Michael Bubas

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

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Pittsburgh, PA, United States of America

Eric S Epstein