Abstract: Weatherstripping is provided having a backing which a composite portion is either integral with or adhered to for reducing stretch and shrinkage in the weatherstripping. The composite portion is composed of strand portion, preferably a plurality of strands, embedded in a matrix. The strand portion may be fibreglass and the matrix may be polypropylene. The composite portion is bonded to or integral with the weatherstripping backing along its length such that the strand portion is oriented linearly in the same direction as the backing. The strand portion has a higher tensile modulus than the backing and thus provides resistance to stretching induced by pull forces during installation. The strand portion also tends to resist shrinkage in the backing.

Abstract: Weatherstripping is provided having a backing which a composite portion is either integral with or adhered to for reducing stretch and shrinkage in the weatherstripping. The composite portion is composed of strand portion, preferably a plurality of strands, embedded in a matrix. The strand portion may be fibreglass and the matrix may be polypropylene. The composite portion is bonded to or integral with the weatherstripping backing along its length such that the strand portion is oriented linearly in the same direction as the backing. The strand portion has a higher tensile modulus than the backing and thus provides resistance to stretching induced by pull forces during installation. The strand portion also tends to resist shrinkage in the backing.

Abstract: In order to reduce the cost of weather seal having a core or carrier which acts as an embedded support for the rubber-like (elastomeric) sealing material, the carrier is first contained within a substrate of low-cost rubber material, which may be applied to the core by extrusion of a substrate of recycled, reground (previously cured) rubber, preferably EPDM rubber which may include a thermoplastic olefinic material as a binder. This substrate is cohesive with an overlaying covering of uncured elastomeric material (EPDM rubber), which may be extruded over the substrate-encased carrier. The carrier, which may be sold separately or encased in the substrate, is provided to enable to the weather seal to be compressed or bent. Reinforcement elements are attached to the wire loops of the carrier, without knitting to the wire loops. The loops of the wire carrier are guided into and held in grooves in a wheel. Feed screws tangential to the wheel compress the loops.

Abstract: This invention relates to an improved one-piece window trim and adhesive dam structure that is provided with sealing means for effectively sealing the window when the latter is installed in vehicles without the necessity of having separate sealing elements secured to the window itself prior to its installation. The present invention also relates to an improved process for installing such windows.