Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1989-12-20
1991-11-05
Stoll, Robert L.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
264 36, 156279, 1562751, 427355, 427356, 427362, 425 62, 425 87, 425204, 4253761, B29C 6300, B32B 3100, B05D 312, B28B 100
Patent
active
H00009822
ABSTRACT:
A process is provided which produces a waterproof membrane and applies this waterproof membrane directly to a fixed substrate. The process includes the steps of providing a polymeric material; melting the polymeric material; forcing the melted polymeric material through a movable die, the movable die shaping the polymeric material melt into a film; moving the movable die across the fixed substrate; and applying the film directly to the fixed substrate forming a waterproof membrane. The polymeric material is one of those known in the art to be useful as roofing material. In a preferred embodiment, this process produces a sealing membrane which is applied to a roof of a structure forming a membrane effective to protect the structure from intrusion of water. In another aspect, an apparatus is provided which is capable of performing the process of this invention.
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Berggren Mark A.
Garton Lance M.
Harris C.
Stoll Robert L.
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