Pumpable desiccated mastic

Static structures (e.g. – buildings) – Transparent panel having active treatment with gas or liquid – Hygroscopic material; e.g. – internal drier

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521713, 52788, 52789, 52790, 5278613, 524528, 156107, 294695, 29530, 428 34, E06B 712

Patent

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06112477&

ABSTRACT:
A pumpable, thermoplastic desiccated mastic capable of desiccating a sealed insulating glass unit. The disclosed compositions comprise a defined resin component and a desiccant/adsorbent component comprising at least 20% by weight of the composition of a desiccant or moisture and volatile organic chemical adsorbing material. The said desiccant/adsorbent component being present in an amount less than the level which will cause the composition when tested as set forth in ASTM D-1238, Procedure B using a 1100 gram load and an 8 gram sample at 190.degree. C. to provide a melt flow time for a piston travel of 2.54 cm(1 inch) of more than 60 seconds.

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ASTM, E 773-88, "Standard Test Methods for Seal Durability of Sealed Insulating Glass Units".
Popular Science, Aug., 1992, Closing the Gaps in Window Efficiency, By Alex Wilson.
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Packaging World, "Materials & Containers" Section, Hot Melt With Dessicant, Mar. 1997, vol. 4, No. 3, p. 18.

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