Omnova Solutions Inc.

Omnova Soltuions Inc.

Walter J Kelly

Michael J Hubbard

Raymond J Weinert

Anthony Verrocchi

A method and apparatus for continuously seaming cured EPDM membrane to form a composite sheet of predetermined width and indefinite length. The method includes the steps of providing at least two rolls of cured EPDM membrane having longitudinal marginal edges and feeding the cured EPDM membrane from the at least two rolls in a first direction. The longitudinal marginal edges of the cured EPDM membranes are positioned in an overlapping relationship as the cured EPDM membranes are fed in the first direction and then the overlapping longitudinal marginal edges are continuously seamed to form a composite sheet of indefinite length.

Method for seaming wide panels of EPDM membrane to form a composite EPDM roofing membrane

Method and apparatus for seaming wide panels of EPDM membrane to form a composite EPDM roofing membrane

An apparatus and method of applying a bead of TPO or TPE adhesive between a talc-free first roofing membrane and an overlapping talc-free second roofing membrane. The apparatus includes a movably supported chassis and an extruder attached to the chassis having a nozzle including an outlet having at least one opening for applying the TPO or TPE adhesive between the first membrane and the overlapping second membrane to adhere the overlapping second membrane to the first membrane. The TPO or TPE adhesive is heated within the apparatus allowing application along the seam between the first and second membranes. The outlet of the nozzle is positioned between the first and second membranes with the TPO or TPE adhesive applied between the overlapping portions of the membranes while pressing the overlapping first and second membranes to hold the overlapping portions together.

Apparatus for applying TPO adhesive to a single-ply roofing membrane

A method and apparatus for selectively curing a sheet of ethylene-propylene diene termonomer (EPDM) material to form a roofing membrane for installation on a roof deck. The method includes the steps of providing a sheet formed of ethylene-propylene diene termonomer, the sheet having a field and longitudinal edge areas bordering the field; and then simultaneously shielding at least one edge area of the EPDM sheet and exposing at least the field to a source of radiation to cure at least the field of the EPDM sheet and provide a selectively cured EPDM roofing membrane. Also disclosed is the product formed by the method of the present invention.

Method and apparatus for selectively curing a sheet of EPDM material

A method of continuously manufacturing and curing in-line a sheet of ethylene-propylene diene monomer to form an EPDM roofing membrane. The method includes the steps of forming a continuous sheet material of ethylene-propylene diene monomer and then continuously heating and pressing the sheet material to partially cure the sheet material and remove any voids within the sheet material. The partially cured sheet material is then continuously fed through a curing oven to fully cure the sheet material to form EPDM roofing membrane.

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Wadsworth, OH, United States of America

Walter J Kelly