F - Mech Eng,Light,Heat,Weapons – 16 – J
Patent
F - Mech Eng,Light,Heat,Weapons
16
J
F16J 15/14 (2006.01) B29C 47/02 (2006.01) C09K 3/10 (2006.01) F16J 15/02 (2006.01)
Patent
CA 2247433
A gel profile article comprising a multi-filament yarn carrier carrying an elongate body of gel which encloses more than 50 %, preferably more than 75 %, more preferably substantially all, of the perimeter of the carrier as viewed in transverse cross section, wherein the carrier is at least partly composed of synthetic polymeric material, preferably polyester filaments (e.g. polyethylene terephthalate) or spun yarns of a co-mingled blend of polyacrylonitrile staple fibres and polyamide staple fibres ("baby wool"), the proportion of polyamide preferably being at least 30 %, more preferably 40-60 %, by weight of the said spun yarn(s). The gel is preferably melt-coated, especially pressure-extruded, around the carrier at a gel temperature less than the softening temperature of at least a component of the carrier, and the selected class of carrier materials enhances the processability, cohesion, and appearance of the resulting profile.
Profilé d'étanchéité portant un gel et comprenant un support en fil à filaments multiples portant un corps allongé de gel entourant plus de 50 %, de préférence plus de 75 %, et plutôt sensiblement la totalité du périmètre du support vu en section transversale, ledit support étant au moins partiellement composé de matériau polymère synthétique, de préférence des filaments de polyester (par exemple, polyéthylèneterephtalate) ou des filés en mélange de fibres discontinues de polyacrylonitrile et de fibres discontinues de polyamide, la proportion de polyamide étant, de préférence, d'au moins 30 %, plutôt 40-60 %, en poids desdits filés. Le gel est, de préférence, appliqué en fusion, particulièrement extrudé sous pression, autour du support à une température inférieure à la température de ramollissement d'au moins un élément du support, la catégorie sélectionnée de matériaux du support augmentant la facilité de traitement, la cohésion et l'aspect du profilé obtenu.
Bluck David
Hammond Philip James
Percy Michael John
Fetherstonhaugh & Co.
Raychem Limited
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