Continental Structural Plastics, Inc.

Other

Continential Structural Plastics, Inc.

Brad Anthony Haskell

Probir Kumar Guha

Michael J Siwajek

Brian A Beach

Hugh C Foran

SudarSan Neogi

Pressurized air is conveyed through a manifold into contact with the first member via apertures having hole diameters of from 0.8 to 2.5 mm that are spaced apart at a distance of from 10 to 30 mm along the manifold to achieve a turbulent air flow pattern with a Reynolds number of greater than 2200 at a temperature of between 150 and 315&#xb0; C. and at an air pressure between 0.5 and 10 pounds per square inch (psi) over ambient pressure onto the outer surfaces of the first member and the second member for heat curing a curable adhesive between the members to achieve adhesive cure in 60 to 90 seconds and free of any bond-line read-out visible to an unaided normal human eye.

Air bonding process

A molding composition formulation includes a thermoset cross-linkable 12 to 45 micron polymeric resin. Hollow glass microspheroids are present from 2 to 12 total weight percent. An article formed from such a composition is further strengthened by the addition of a surface activating agent bonded to the surface of the glass microspheroids. Conventional particulate fillers when added to an inventive formulation provide enhanced performance when the filler particle has a size sufficiently small to insert within adjacent microspheroid interstitial voids. An unsaturated polyester resin so formed is particularly well suited for the formation of sheet molding compound formulations.

Low-density molding compound

A process for applying an overlayer to a cured thermoset molding composition is provided that includes exposing the cured thermoset molding composition to a plasma under conditions that modify the surface energy of a surface of the article without visually modifying the surface. The surface of the article is then overcoated with an overlayer having superior adhesion to a like article absent the intermediate plasma treatment. A component is also provided that is cured thermoset resin article having a shape and a surface. An overlayer is applied to the surface while the surface is still plasma activated. The overlayer is adhesion is unchanged by 4 weeks in a 100% humidity chamber at 30&#xb0; C. over at least 95 area % of an interface between the overlayer and the surface.

Plasma treated molding composition and process for modifying a surface thereof

A molding composition formulation includes a thermoset cross-linkable polymeric resin. Glass microspheroids are present such that upon cure of the resin the resulting article has a linear shrinkage of less than &#xb1;0.06% and a density of less than 1.65. An article formed from such a composition is further strengthened by the addition of a surface activating agent bonded to the surface of the glass microspheroids. Conventional particulate fillers when added to an inventive formulation provide enhanced performance when the filler particle has a size sufficiently small to insert within adjacent microspheroid interstitial voids. An unsaturated polyester resin so formed is particularly well suited for the formation of sheet molding compound formulations.

Sheet molding composition formulation includes a thermoset cross-linkable polymeric resin. A moisture reducing polymeric additive includes at least one of polystyrene; poly C-Calykylmethacrylate; a copolymer of styrene with at least one of butadiene, acrylonitrile and vinyl chloride; or a combination of polystyrene, polyaklymethacrylate and or a styrene copolymer. Moisture reducing polymeric additive is present within the formulation from between 1 and 20 total weight percent. An article formed from such a sheet molding composition formulation defines an article shape and has a surface that sets the article shape with less than 0.5 total weight percent water after 96 hours exposure and 100&#xb0; F. 100% humidity. The article shape is amendable to receiving a vapor barrier coating applied to the articles shape surface. A powder prime coating over lies the barrier coating and achieves surface finish results comparable to article shapes formed of steel.

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Lake Orion, MI, United States of America

Brad Anthony Haskell