US3779860A
Expired / Lapsed
US
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Thermal and acoustical structural insulating composition
Assignee: International Permalite Inc
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Filing: 1972-03-09
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Granted: 1973-12-18
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Expires: 1992-03-09
Abstract
Abstract A coated thermally expanded mineral aggregate thermal and acoustical insulating structural composition and a process for its production is provided wherein a low consistency board furnish containing binder, defibrillated fibrous material and a relatively high percentage of glass reinforcing fibers is deposited on the surface of a partially dewatered mat containing defibrillated fibrous material, binder and 50-85 percent thermally expanded mineral aggregate by weight of the total board composition, pressing and drying to produce an integrally formed multiply structural composition.
Inventors
- 👤 O Oshida
- 👤 M Shawgo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:20
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/26; E; E04; E04C; E04C2/00; E04C2/02; E04C2/10; E04C2/24; E04C2/243; C04B2111/00; C04B2111/52; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/91
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
39 words
The thermal and acoustical insulating composition of Claim 1 comprising a thermally expanded mineral aggregate, a defibrillated cellulosic fibrous material and a binder and wherein said coating comprises a defibrillated organic fibrous material, clay, a binder and glass fibers.
Claim 2
Dependent Claim
14 words
The thermal and acoustical insulating composition of Claim 2 wherein said binder is bituminous.
Claim 3
Dependent Claim
17 words
The thermal and acoustical insulating composition of Claim 2 whereiN said defibrillated organic fibrous material is cellulosic.
Claim 4
Dependent Claim
93 words
A thermal and acoustical insulating composition comprising from about 50 to about 85 percent thermally expanded mineral aggregate, from about 10 to about 30 percent defibrillated cellulosic fibrous material, from about 1 to about 12 percent bituminous binder, wherein said composition is in the form of a structural insulating board having a coating thereon comprising from about 40 to about 80 percent defibrillated cellulosic fibrous material, from about 5 to about 20 percent bituminous binder, from about 2 to about 15 percent clay and from about 1 to about 8 percent glass fibers.
Claim 5
Dependent Claim
87 words
A composition of claim 6 wherein the defibrillated cellulosic fibrous material is selected from the group consisting of pulped newsprint, pulp, kraft paper pulp, and bagasse, the bituminous binder is asphalt, the clay is selected from the group consisting of kaolin or china clay, ball clay, fire clay, stoneware clay, bentonite, fuller''s earth, activated clays, dusting clays, bleaching clays, calcined clays, colloidal clays, enamel clays and fuller clays, and the glass fibers are less than 1.5 inches long having a diameter not in excess of 50 microns.
Claim 6
Dependent Claim
19 words
A composition of claim 6 wherein the defibrillated cellulosic fibrous material is pulped newsprint, and the clay is bentonite.
Claim 7
Dependent Claim
76 words
A coated thermal and acoustical insulating board comprising a mineral aggregate selected from the group consisting of thermally expanded alumino-silicate rocks including perlite, and exfoliated vermiculite; a clay selected from the group consisting of kaolin, ball clay, fire clay, bentonite, activated clays, calcined clays, and fuller clays; and pulped newsprint wherein said insulating board has applied to at least one major surface thereof a coating comprising pulped newsprint, a bituminous binder, clay, starch and glass fibers.
Claim 8
Dependent Claim
137 words
A coated perlite or exfoliated vermiculite thermal and acoustical insulating board comprising, on a dry basis, from about 10 to 30 percent pulped newsprint, from about 01. to about 8 percent bentonite clay, from about 1.0 to about 12 percent asphalt, and from about 50 to about 85 percent of a material selected from the group consisting of exfoliated vermiculite and perlite, wherein the structural insulating board has applied to one major surface thereof a coating comprising from about 40 to about 80 percent pulped newsprint, from about 5 to about 20 percent asphalt, from about 2 to about 15 percent bentonite, from about 1 to about 15 percent starch, from about 1 to about 8 percent glass fibers, from about 1 to about 8 percent boric acid, and from about 1 to about 10 percent borax.
Claim 9
Dependent Claim
72 words
A coated perlite thermal and acoustical insulating board, comprising on a dry basis, 70 percent thermally expanded perlite, 22 percent pulped newsprint, 5 percent asphalt, and 3 percent Wyoming bentonite clay wherein said substrate has applied to at least one major surface thereof a coating comprising 62 percent pulped newsprint, 14 percent asphalt, 6 percent Wyoming bentonite, 5 percent starch, 3 percent glass fibers, 4 percent boric acid, and 6 percent borax.
Claim 10
Dependent Claim
91 words
A process for producing coated thermal and acoustical structural material comprising: a. mixing a thermal expanding aggregate, defibrillated cellulosic fibrous material, a binder and clay; b. Depositing a sufficient amount of said composition on a board-forming machine to form a mat of desired thickness and consistency; c. Partially dewatering said mat in amounts sufficient to remove the water glaze therefrom; d. Applying to the still wet surface of the deposited mass a coating comprising glass fibers, defibrillated cellulosic fibers, clay, and binder; anD then e. Dewatering, pressing and drying said mass.
Claim 11
Dependent Claim
91 words
The process of claim 11 wherein the defibrillated cellulosic fibrous material is selected from the group consisting of pulped newsprint, pulp, kraft paper pulp, and bagasse; the thermally expandable alumino-silicate rocks including perlite and vermiculite, the bituminous binder is asphalt; the clay is selected from the group consisting of kaolin or china clay, ball clay, fire clay, bentonite, fuller''s earth, activated clays, dusting clay, calcined clays, colloidal clays, and filler clays, and the glass fibers are less than 1 1/2 inches long having a diameter not in excess of 30 microns.
Claim 12
Dependent Claim
106 words
The process of Claim 11 wherein the thermal acoustical insulating composition comprises from about 50 to about 85 percent thermally expanded mineral aggregate, from about 10 to about 30 percent defibrillated cellulosic fibrous material, from about 1 to about 12 percent bituminous binder, wherein said composition is in the form of a structural insulating board having a coating applied to at least one major surface thereof which comprises from about 40 to about 80 percent defibrillated cellulosic fibrous material, from about 5 to about 20 percent bituminous binder, from about 2 to about 15 percent clay and from about 1 to about 8 percent glass fibers.
Claim 13
Dependent Claim
123 words
The process of claim 11 wherein the thermal acoustical insulating composition comprises, on a dry basis, from about 50 to about 85 percent thermally expanded perlite, from about 10 to about 30 percent pulped newsprint, from about 1 to about 12 percent asphalt, from about 0.1 to about 8 percent bentonite clay, and wherein the coating applied to the major surface thereof comprises from about 40 to about 80 percent pulped newsprint, from about 5 to about 20 percent asphalt, from about 2 to about 15 percent bentonite, from about 1 to about 10 percent starch, from about 1 to about 8 percent glass fibers, from about 1 to about 8 percent boric acid and from about 1 to about 10 percent borax.
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |