An injection molding method, including injecting a resin composition for molding as a raw material, the resin composition including at least two resins having different apparent viscosities at 230 C. and at least one compatibilizer.

A dual-molded silicone-polyamide composite article including a first molded piece that comprises a blend of polyamide and an ethylene-vinyl alcohol copolymer and a second molded piece that comprises a thermoset, hydrosilylation-cure silicone polymer. A portion of a surface of the second molded piece is autogenously bonded to a portion of a surface of the first molded piece.

A vehicle trim component is disclosed. A method for forming the trim component is also disclosed. The trim component is configured to support an airbag chute providing an airbag. The airbag is configured to be deployed through an opening. The trim component may comprise (a) a substrate a structure, (b) a cover comprising a skin made of a thermoplastic material (e.g. TPO having a substantially constant thickness of less than 0.7 mm) and a support layer coupled to the skin, and (c) a thermoplastic (e.g. foam) layer between the cover and the substrate. The thermoplastic foam) layer may be configured to attach the cover to the substrate. The airbag chute may be secured between the thermoplastic (e.g. foam) layer and the substrate. The support layer may be made of a foam material (e.g. polypropylene and/or polyethylene foam). The process for forming the trim component may comprise the steps of (a) providing a skin; (b) applying a support layer to the skin to create a cover; (c) providing the cover in a mold; (d) providing an airbag chute in the mold; (e) providing a substrate in the mold; and (I) injecting a thermoplastic (e.g. foam) material between the cover and the substrate.

An article is molded from first and second thermosetting elastomer compositions each comprising free-radically curable elastomer and free radical initiator but different from one another. The first thermosetting elastomer composition is molded to fill a first area of a mold cavity at a first temperature at which the first free radical initiator has a half-lifeabout 10 minutes or at which the first thermosetting elastomer composition has an increase in torque less than 10% of a total increase in torque at full cure. The second thermosetting elastomer composition is then inserted into the mold cavity, and the mold is heated to fully cure the article, for example a temperature at which each free radical initiator has a half-lifeabout 1 minute, with the second composition filling a second area of the mold cavity before or during heating and curing.

Forming a connector head for a generator of an active implantable medical device by providing a pin (20) having alternating smooth sections (21) for receiving an electrical contact (210) and a profiled section (22); disposing the electrical contacts on the smooth sections; injecting into a first mold a flexibly resilient material around the profiled sections of the pin to produce isolation elements between the electrical contacts; injecting in a second mold a rigid material around the pin to form the connector head with the electrical contacts and isolation elements embedded therein; and withdrawing the pin from the cavity of the connector head thus formed. The material provides precise axial and radial positioning of the different elements, and good electrical insulation.

A screw cap (14, 502) configured to be removably attachable to a bottle (12) includes a base (40) and an annular skirt (42, 508) extending downwardly therefrom. One or more threads (32) extend radially inwardly from an interior surface of the skirt (42, 508). A retention feature (509) extends radially inwardly from the interior surface of the skirt (42, 508). The retention feature (509) is configured to produce at least one of an audible response or a tactile response when the cap (14, 502) is rotated with respect to a bottle (12).