US4463039A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sprayable acoustical composition
Assignee: United States Gypsum Co
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Filing: 1983-06-13
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Granted: 1984-07-31
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Expires: 2003-06-13
Abstract
Abstract A composition comprising mineral wool and polyolefin fibers is adaptable for spraying onto a ceiling or wall or the like to form a textured acoustical coating. The fibers are mixed with a binder, water and foaming agent to form a foamy composition. The composition is confined under pressure and released through a nozzle to form a steam. Compressed gas is introduced into the stream to atomize the composition.
Inventors
- 👤 Daniel D. O'Connell
- 👤 Thomas A. Broz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:19
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/28; C04B2111/00; C04B2111/00474; C04B2111/00482; C04B2111/00577; C04B2111/52; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249962; Y10T428/249964
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
75 words
A method for forming a monolithic, acoustical, textured surface comprising mixing mineral wool, polyolefin fibers, a binder selected from the class consisting of starch, polyvinyl acetate, polyvinyl alcohol and mixtures thereof, a foaming agent and water to form a foamy composition, confining said composition under super-atmospheric pressure, releasing it through a nozzle to form a stream, introducing a compressed gas into said stream to atomize the composition, and directing said atomized composition against a substrate.
Claim 2
Independent Claim
75 words
A method for forming a monolithic, acoustical, textured surface comprising mixing mineral wool, polyolefin fibers, a binder selected from the class consisting of starch, polyvinyl acetate, polyvinyl alcohol and mixtures thereof, a foaming agent and water to form a foamy composition, confining said composition under super-atmospheric pressure, releasing it through a nozzle to form a stream, introducing a compressed gas into said stream to atomize the composition, and directing said atomized composition against a substrate.
Claim 3
Dependent Claim
24 words
The method of claim 1 characterized further by selecting polyolefin fibers having an average length of from about 0.5 mm to about 5 mm.
Claim 4
Dependent Claim
24 words
The method of claim 1 wherein the amount of polyolefin fibers is from about 0.2% to about 11%, by weight, of the foamy composition.
Claim 5
Dependent Claim
31 words
The method of claim 3 wherein the mixing is sufficient to form a foamed composition having a volume from about 1.4 to about 2.5 times the volume of the unfoamed composition.
Claim 6
Dependent Claim
39 words
The method of claim 1 wherein the foamy mixture is confined at a pressure of from about 15 p.s.i. to about 35 p.s.i. and the atomization pressure at the nozzle is from about 40 p.s.i. to about 70 p.s.i.
References Cited (Backward Citations)
US3730763A
Cited
US3922462A
Cited
JPS5265519A
Cited
US4277568A
Cited
JPS5412509A
Cited
US4247581A
Cited
FR2450860A1
Cited
US4254177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-31 | 1988-01-30 | 1988-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-31 | 1992-01-30 | 1992-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-31 | 1996-01-30 | 1996-07-31 | $7700.00 | Window Closed / Lapsed |