Patent US4010818A successfully refreshed from Google Patents.
US4010818A
Expired / Lapsed
US
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Flexible noise barrier material
Assignee: BANCAMERICA COMMERCIAL Corp A CORP OF PA
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Filing: 1975-06-10
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Granted: 1977-03-08
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Expires: 1995-06-10
Abstract
Abstract A flexible noise barrier material is provided. The barrier material consists of a mass building coat adhered to a non-woven substrate. The mass building coat consists of neoprene and dispersed particles of iron sulfide, iron oxide, barium sulfate, or barium oxide.
Inventors
- 👤 Melvin W. Westley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:29
CPC Classifications
G; G10; G10K; G10K11/00; G10K11/16; G10K11/162; G10K11/165; Y; Y10; Y10T; Y10T442/00; Y10T442/20; Y10T442/25
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
96 words
A flexible barrier material capable of reducing sound transmission through air; the barrier material comprising: a. a non-woven sheet structure based on continuous filament synthetic organic fiber of polyester and polypropylene, b. a neoprene composition adhesive coat applied to the sheet structure, and c. a mass building coat comprised of, neoprene and dispersed particles of a metal compound, having a density of less than 6 grams per milliliter, selected from the group consisting of iron sulfide, iron oxide, barium oxide, and barium sulfate; wherein the mass building coat is applied upon the adhesive coated sheet structure.
Claim 2
Dependent Claim
96 words
A flexible barrier material capable of reducing sound transmission through air; the barrier material comprising: a. a non-woven sheet structure based on continuous filament synthetic organic fiber of polyester and polypropylene, b. a neoprene composition adhesive coat applied to the sheet structure, and c. a mass building coat comprised of, neoprene and dispersed particles of a metal compound, having a density of less than 6 grams per milliliter, selected from the group consisting of iron sulfide, iron oxide, barium oxide, and barium sulfate; wherein the mass building coat is applied upon the adhesive coated sheet structure.
Claim 3
Dependent Claim
28 words
The barrier material of claim 1, wherein the non-woven sheet structure weighs 2.5 or more ounces per square yard and has a thickness of 17 or more mils.
Claim 4
Dependent Claim
28 words
The barrier material of claim 1, wherein the non-woven sheet structure weighs 5.0 or more ounces per square yard and has a thickness of 28 or more mils.
Claim 5
Dependent Claim
18 words
The barrier material of claim 1, wherein, the dispersed particles have a particle size range of 15-45 microns.
Claim 6
Dependent Claim
29 words
The barrier material of claim 1, wherein the mass building coat is comprised of 40-60% by weight, based on the total weight of mass building coat, of dispersed particles.
Claim 7
Dependent Claim
13 words
The barrier material of claim 5, wherein the dispersed particles are barium sulfate.
Claim 8
Dependent Claim
72 words
The barrier material of claim 1, wherein the barrier materials weigh about 134-154 ounces per square yard, has a grab strength of at least 200 pounds X 160 pounds warp X fill as measured by ASTM-D-751, has a strip tear strength of at least 7 pounds by 7 pounds warp X fill as measured by ASTM-D-751, and does not support combustion as measured by Method 5910 of Federal Test Standard No. 191.
Claim 9
Dependent Claim
96 words
The barrier material of claim 7, wherein the barrier material is comprised of a. a non-woven sheet structure consisting of fibers of polyester and polypropylene, and weighing 5.0 or more ounces per square yard and having a thickness of 28 or more mils; b. an adhesive coat consisting of a neoprene composition; and c. a mass building coat consisting of a composition of neoprene and dispersed particles of barium sulfate, wherein the barium sulfate comprises 40-60% of weight of the mass building coat and wherein the dispersed particles have a particle size range of 15-45 microns.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-07 | 1980-09-06 | 1981-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-07 | 1984-09-06 | 1985-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-07 | 1988-09-06 | 1989-03-08 | $7700.00 | Window Closed / Lapsed |