E - Fixed Constructions – 04 – G
Patent
E - Fixed Constructions
04
G
E04G 11/06 (2006.01) E04B 1/12 (2006.01) E04B 1/94 (2006.01) E04B 2/20 (2006.01)
Patent
CA 2134959
Extruded hollow thermoplastic structural components of rectilinear cross section formed for interlocking assembly with mating components for use in erecting a modular building characterized in that said components are extruded from PVC material which includes a smoke retarding agent which is covered by a skin on surfaces exposed to the environment. Preferably the component is an elongated extruded hollow thermoplastic structural component of rectilinear cross-section formed for interlocking assembly with mating components for use in erecting a modular building, characterized in that said component is formed as a co-extrusion of a substrate of PVC containing from about 10% to 35% by weight of the substrate of a reinforcing and expansion controlling agent and from about 5% to about 35% per weight of the substrate of smoke retarding agent, the total of said agents being less than about 45% by weight of the substrate, and a thermoplastic skin covering surfaces of said component which remain exposed when said component is interlocked with mating components in a building structure, said substrate being substantially thicker than said skin, said skin forming a protective barrier to isolate said smoke retarding agent from exposure to the environment exterior of said component when same is incorporated into a building structure.
de Zen Vittorio
Dennison Associates
Royal Building Systems (cdn) Limited
LandOfFree
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