摘要:
A method for preparing a polymeric laminate by the reactive coextrusion of functionalized polymers wherein at least one layer is a polymer having functional groups and the adjacent layer is a polymer having coreactive groups which form covalent bonds with the functional groups at the interfacial surfaces. One such functional group can comprise a pendant cyclic imino ether group to form covalent bonds with the coreactive groups.An improved laminate having a plurality of layers covalently bonded together through the interaction of pendant cyclic imino ether groups and coreactive groups is also provided.
摘要:
Laminated containers for food and the like are prepared by thermoforming different overlying polymeric sheets in a web without using adhesive, by heat fusing the web in the thermo- forming areas to facilitate separation of the scrap material of the web into its separate layers.
摘要:
A multilayer plastic film or sheet having a series of component layers and optional bonding layers tying said component layers together is provided. The multilayer film or sheet comprises a central barrier layer comprising first and second layers of polyvinylidene chloride polymer bonded together with a tie or bonding layer, an outer layer adjacent to an outer side of the first PVDC layer, and a sealant layer adjacent to an outer side of the second PVDC layer.
摘要:
The present disclosure can provide an aerogel composite. The aerogel composite comprises at least one base layer having a top surface and a bottom surface, the base layer comprising a reinforced aerogel composition which comprises a reinforcement material and a monolithic aerogel framework, a first facing layer comprising a first facing material attached to the top surface of the base layer, and a second facing layer comprising a second facing material attached to the bottom surface of the base layer. At least a portion of the monolithic aerogel framework of the base layer extends into at least a portion of both the first facing layer and the second facing layer. The first facing material and the second facing material can each comprise or consist essentially of elastic fibers such as spandex, nylon, lycra, elastane, or combinations thereof.
摘要:
The invention describes a composite structure comprising a number of thermoset resin containing elements (1) and a number of thermoplastic elements (2) and at least one interface (3) between the thermoset resin containing elements (1) and the thermoplastic elements (2), wherein the thermoset resin containing elements (1) and the thermoplastic elements (2) comprise functional groups at the interface (3) which bond to each other when the composite structure is cured and the functional groups are independently selected from amines, carboxylic acids, acid anhydrides, oxiranes, and derivatives thereof in their non-bonded condition. Additionally, the invention describes a blade comprising such a composite structure.
摘要:
Disclosed in this invention is a method for improving tear resistance of stretch films in which two stretch films are bonded together with an adhesive by hot rolling or UV curing such that their primary stretch directions cross each other. Composite films resulting from the invention possess significantly improved slit tear strength and tear resistance over biaxially stretched films with the same thicknesses. The invention can be widely used to improve tear resistance of stretch films fabricated from various existing materials and processes. In addition, it allows simple operations and is readily applicable to mass production.
摘要:
A method is provided for decomposition of a polymeric article, wherein the polymeric article contains a polymer and one or more energy modulation agents, by applying an applied energy to the polymeric article, wherein the one or more energy modulation agents convert the applied energy into an emitted energy sufficient to cause bond destruction within the polymer.
摘要:
An acoustic composite comprising a plurality of discrete air flow resistive layers layered on top of each other including a top layer and one or more lofted fibrous layers produced by a lapping process, the top layer having a specific air flow resistance that is greater than a specific air flow resistance of the one or more lofted fibrous layer.
摘要:
An exterior structural trim part for a vehicle, comprising at least an area comprising at least 3 layers superposed and laminated together to form a structural unit whereby the two outer layers are compressed and consolidated fibrous layers and with an inner layer situated in-between the two fibrous outer layers being an impervious polyester foam layer.