Abstract:
The disclosure is directed to a sealing assembly. The sealing assembly includes a cap having a top surface and a bottom surface, an adhesive layer adjacent the bottom surface of the cap, and a septum adjacent to the adhesive layer. The adhesive layer includes a self-bonding silicone composition and the septum includes at least one fluoropolymer layer. The disclosure is further directed to methods for making the aforementioned sealing assembly.
Abstract:
The invention describes compositions that include amine-containing silsesquioxane or an amine-containing alkyltrialkoxysilane and a thermoplastic elastomer as well as methods of preparation of the compositions that are useful as self-bonding adhesives for various substrates.
Abstract:
An object is formed on a component with a positive flash shut-off during insert molding operations. The mold has a base with a cavity and a port that delivers a liquid to the cavity. The base has a component support structure for supporting the component and pockets formed on opposite sides of the cavity. The pockets are slightly spaced apart from the cavity by thin partitions. Inserts located in the pockets and are formed from a polymer. Both the partitions and inserts comprise the component support structure. The inserts have a dimension that is smaller than that of the base and partitions so as to form a compression fit around the component to reduce or eliminate flash down the component during the molding process.
Abstract:
Se forma un objeto sobre un componente con un cierre instantáneo positivo durante operaciones de moldeo por inserción. El molde tiene una base con una cavidad y una lumbrera que suministra un líquido a la cavidad. La base tiene una estructura de soporte del componente para soportar el componente y bolsillos formados sobre caras opuestas de la cavidad. Los bolsillos están ligeramente separados de la cavidad por tabiques delgados. Insertos están situados en los bolsillos y se forman a partir de un polímero. Tanto los tabiques como los insertos comprenden la estructura de soporte del componente. Los insertos tiene una dimensión que es menor que la de la base y tabiques con el fin de formar un ajuste de compresión alrededor del componente para reducir o eliminar la rebaba que cae del componente durante el proceso de moldeo.