Sound insulating membrane
AssigneeThe Noble Company
InventorWalter J. Gaffigan
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Abstract
A sound insulating membrane and processes for forming, particularly well suited for use in floor, ceiling and wall constructions. The membrane comprises at least one backing layer in contact with a layer of polymeric material. The polymeric material has an elongation factor of about 500% to about 900% and a Shore A hardness of from about 65 to about 80 points, 5 seconds. In a preferred embodiment, the polymeric material comprises 40-70% chlorinated polyethylene, 20-30% ethylene vinyl acetate, and up to 10% polyvinyl chloride. Floor, ceiling, and wall constructions and related methods utilizing the sound insulating membranes are also disclosed.
Claims12
A method of forming a sound insulating floor, ceiling or wall construction comprising the steps of:
- providing a substrate;
- and
- applying a sound insulating membrane to said substrate, said membrane comprising at least one backing layer, and a polymeric layer contacting said one backing layer, said polymeric layer formed from at least one polymeric material, said polymeric layer having an elongation factor of from about 500% to about 900% and a Shore A hardness of from about 65 to about 80 points, 5 seconds, said membrane having a thickness of less than about 0.150" wherein said insulating membrane achieves an Impact Insulation Class rating of at least about 45, as determined by ASTM E90, E336, and E492.
Dependencies are inferred from the claim text.