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Sound-insulating-membrane

Moisture-proof resealable pouch and container

OF PREFERRED EMBODIMENTS The pouches, closures and associated containers of the present invention ...

Microbiological assembly comprising resealable closure means

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Single-piece paper cup sip adaptor

Referring to FIGS. 1 5 wherein the showings are for purposes of illustrating one embodiment of the ...

Iron oxide pigments

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Colored and coated plateletlike pigments

What is claimed is: 1. A platelet-shaped pigment, consisting essentially of an inorganic, platelet-...

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OF THE EMBODIMENTS As follows is a description of preferred embodiments of a colored composition ...

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OF THE INVENTION The present invention will now be described in detail below. First, the organic ...

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OF THE INVENTION The present invention will now be described in detail below. First, the colorant ...

Heat transfer cover films

We claim: 1. A heat transfer sheet, comprising: a polyester film substrate sheet; an adhesive layer ...

Sound insulating membrane

Details

Inventors: Gaffigan, Walter J.;
Assignee: The Noble Company (Grand Haven, MI)
Primary Examiner: Chen; Vivian
Assistant Examiner:
Attorney, Agent or Firm: Price, Heneveld, Cooper, DeWitt & Litton

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.

DETAILED DESCRIPTION The present invention provides a sound insulating membrane having a thickness less than about 0.
150" comprising at least one backing layer and a polymeric layer contacting at least one backing layer.
The polymeric layer comprises a material which 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 from about 40% to about 70% chlorinated polyethylene, from about 20% to about 30% ethylene vinyl acetate, and up to about 10% polyvinyl chloride.
In addition, the present invention provides ceiling, floor and wall constructions having improved sound insulation properties by incorporation of the membranes of the present invention.

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