Sound insulating membrane
AssigneeThe Noble Company
InventorWalter J. Gaffigan
Life of this patent
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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 nonfoam 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.
Claims39
A unitary, single sheet sound insulating membrane comprising:
- at least one backing layer;
- and
- a nonfoam, polymeric layer contacting and affixed to 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, wherein said membrane has a thickness of less than about 0.150 inches.
A unitary single sheet sound insulating membrane comprising:
- at least one backing layer;
- and
- a flexible and elastic nonfoam polymeric layer contacting and affixed to said one backing layer, 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 85 points, 5 seconds, comprising from about 40% to about 70% chlorinated polyethylene, from about 20% to about 30% ethylene vinyl acetate, and up to about 10% polyvinyl chloride, wherein said membrane has a thickness of less than about 0.150 inches.
A floor, ceiling or wall construction having improved sound and impact insulation properties, comprising:
- a substrate;
- and
- a unitary, single sheet sound insulating membrane comprising at least one backing layer, and a nonfoam, polymeric layer contacting and affixed to 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 inches.
Dependencies are inferred from the claim text.