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Open AccessReport10.2172/7303058

Repackaging halthane 73-18. Period covered: January--March 1977

B. Ferranti-1977-01-01
0

TL;DRAbstract

Like other urethanes, the Halthanes are susceptible to reaction with moisture. The curing agents absorb atmospheric moisture and form inferior products when later reacted with the prepolymer; thus, precautions must be taken to protect all components from moisture prior to use. This endeavor was undertaken to determine if Halthane 73-18 adhesive could be repackaged into preweighed kits for WR usage without utilizing an inert atmosphere (1 percent RH or less) during the repackaging operation.

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Like other urethanes, the Halthanes are susceptible to reaction with moisture. The curing agents absorb atmospheric moisture and form inferior products when later reacted with the prepolymer; thus, precautions must be taken to protect all components from moisture prior to use. This endeavor was undertaken to determine if Halthane 73-18 adhesive could be repackaged into preweighed kits for WR usage without utilizing an inert atmosphere (1 percent RH or less) during the repackaging operation.

Keywords

Curing (chemistry)MoistureInert gasInertAdhesivePrepolymerEnvironmental sciencePulp and paper industry

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