US5458822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for manufacturing a mineral fiber product
Assignee: Owens Corning Intellectual Capital LLC
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Filing: 1993-06-21
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Granted: 1995-10-17
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Expires: 2013-06-21
Abstract
Abstract A method for manufacturing a mineral fiber product comprises centrifuging mineral fibers with a spinner, forming a veil of the mineral fibers moving in the direction of the axis of the spinner, directing toward the veil, from a position within the veil, polymeric material to cause intermingling of the polymeric material and the mineral fibers, and, collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Inventors
- 👤 Shiv K. Bakhshi
- 👤 Steven H. Williams
- 👤 James W. Scott
- 👤 Randall M. Haines
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:00
CPC Classifications
C; C03; C03B; C03B37/00; C03B37/01; C03B37/04; C03B37/048; B; B29; B29B; B29B15/00; B29B15/08; B29B15/10; B29B15/12; B29B15/122; B29B15/127; C03C; C03C25/00; C03C25/10; C03C25/12; C03C25/14; C03C25/146; D; D01; D01D; D01D5/00; D01D5/18; E; E04; E04B; E04B1/00; E04B1/62; E04B1/74; E04B1/76; E04B2001/7687
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
91 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging mineral fibers with a first spinner; b. forming a veil of the mineral fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, polymeric fibers from polymeric material having a molecular weight greater than 1,000 to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 2
Independent Claim
91 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging mineral fibers with a first spinner; b. forming a veil of the mineral fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, polymeric fibers from polymeric material having a molecular weight greater than 1,000 to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 3
Dependent Claim
21 words
The method of claim 1 in which the forming and directing step comprises centrifuging the polymeric material with a second spinner.
Claim 4
Dependent Claim
29 words
The method of claim 1 comprising heating at least a portion of the polymeric fibers so that they are in a softened condition as they intermingle with the veil.
Claim 5
Independent Claim
91 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging mineral fibers with a first spinner; b. forming a veil of the mineral fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, a film of polymeric material having a molecular weight greater than 1,000 to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 6
Independent Claim
91 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging mineral fibers with a first spinner; b. forming a veil of the mineral fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, a film of polymeric material having a molecular weight greater than 1,000 to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 7
Dependent Claim
18 words
The method of claim 1 in which the molecular weight of the polymeric material is greater than 10,000.
Claim 8
Dependent Claim
18 words
The method of claim 1 in which the molecular weight of the polymeric material is greater than 100,000.
Claim 9
Dependent Claim
22 words
The method of claim 1 in which the polymeric material comprises at least 50 percent by weight of the mineral fiber product.
Claim 10
Independent Claim
95 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging mineral fibers with a spinner; b. forming a veil of the mineral fibers moving in the direction of the axis of the spinner; c. centrifuging polymeric material having a molecular weight greater than 1,000 with a second spinner positioned within and spaced from the veil to form polymeric fibers, and directing the polymeric fibers toward the veil to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 11
Independent Claim
95 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging mineral fibers with a spinner; b. forming a veil of the mineral fibers moving in the direction of the axis of the spinner; c. centrifuging polymeric material having a molecular weight greater than 1,000 with a second spinner positioned within and spaced from the veil to form polymeric fibers, and directing the polymeric fibers toward the veil to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 12
Dependent Claim
29 words
The method of claim 8 comprising heating at least a portion of the polymeric fibers so that as they intermingle with the veil they are in a softened condition.
Claim 13
Dependent Claim
18 words
The method of claim 8 in which the molecular weight of the polymeric material is greater than 10,000.
Claim 14
Dependent Claim
18 words
The method of claim 8 in which the molecular weight of the polymeric material is greater than 100,000.
Claim 15
Independent Claim
100 words
The method for manufacturing a fibrous product comprising: a. centrifuging polymer fibers from a first polymeric material with a first spinner; b. forming a veil of the first polymer fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, polymeric fibers from a second polymeric material having a molecular weight greater than 1,000 to cause intermingling of the second polymeric material and the first polymer; and, d. collecting the intermingled second polymeric material and first polymer fibers to form a fibrous product.
Claim 16
Independent Claim
100 words
The method for manufacturing a fibrous product comprising: a. centrifuging polymer fibers from a first polymeric material with a first spinner; b. forming a veil of the first polymer fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, polymeric fibers from a second polymeric material having a molecular weight greater than 1,000 to cause intermingling of the second polymeric material and the first polymer; and, d. collecting the intermingled second polymeric material and first polymer fibers to form a fibrous product.
Claim 17
Dependent Claim
20 words
The method of claim 12 in which the directing step comprises centrifuging the second polymeric material with a second spinner.
Claim 18
Dependent Claim
30 words
The method of claim 12 comprising heating at least a portion of the second polymeric fibers so that they are in a softened condition as they intermingle with the veil.
Claim 19
Independent Claim
97 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging polymer fibers from a first polymeric material with a first spinner; b. forming a veil of the first polymer fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, a film of polymeric material having a molecular weight greater than 1,000 to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 20
Independent Claim
97 words
The method for manufacturing a mineral fiber product comprising: a. centrifuging polymer fibers from a first polymeric material with a first spinner; b. forming a veil of the first polymer fibers moving in the direction of the axis of the first spinner; c. forming and directing toward the veil, from a position within and spaced from the veil, a film of polymeric material having a molecular weight greater than 1,000 to cause intermingling of the polymeric material and the mineral fibers; and, d. collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.
Claim 21
Independent Claim
24 words
The method of claims 12, 13, 14 or 15 in which the molecular weight of the second polymeric material is greater than about 10,000.
Claim 22
Dependent Claim
19 words
The method of claim 12 in which the molecular weight of the second polymeric material is greater than 100,000.
Claim 23
Dependent Claim
20 words
The method of claim 12 in which the first polymeric material is PPS and the second polymeric material is PET.
Claim 24
Dependent Claim
23 words
The method of claim 2 in which centrifuging with the second spinner includes controlling such centrifuging independently of centrifuging with the first spinner.
Claim 25
Dependent Claim
28 words
The method of claim 8 in which centrifuging with the second spinner includes controlling the rate of second spinner rotation independently of the rate of first spinner rotation.
Claim 26
Dependent Claim
23 words
The method of claim 12 in which centrifuging with the second spinner includes controlling such centrifuging independently of centrifuging with the first spinner.
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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) | 1998-10-16 | 1999-04-17 | 1999-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-16 | 2003-04-17 | 2003-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-16 | 2007-04-17 | 2007-10-17 | $7700.00 | Window Closed / Lapsed |