Static structures (e.g. – buildings) – With synthetic resinous component – Foam
Patent
1986-09-24
1988-04-12
Perham, Alfred C.
Static structures (e.g., buildings)
With synthetic resinous component
Foam
52311, 52396, 52403, 428160, 4283199, E04B 168
Patent
active
047365587
ABSTRACT:
An expansion, or seismic joint, is provided of polyurethane/polyester sponge rubber having a series of parallel grooves in its front face and a single vee shaped groove in its rear face. The grooves in the front face include an elastomeric membrane of cured one-component polyurethane liquid rubber and a cured capping layer of aliphatic two-component urethane liquid rubber. The capping layer may be colored or if the capping layer is not used the elastomeric membrane may include an aggregate or sand coating. The capping layer may be colored.
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Cates Charles E.
Chilcot Jr. Richard E.
Perham Alfred C.
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