US4620860A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for making glass fiber products and product produced
Assignee: Johns Manville
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Filing: 1985-07-23
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Granted: 1986-11-04
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Expires: 2005-07-23
Abstract
Abstract A novel process for the production of glass fiber products is provided. By the inventive process glass fibers are combined with a heat curable binder and then consolidated onto a conveyor where a glass fiber mass is placed onto the surface of the consolidated mass of glass fibers and heat curable binder. The resulting product is then subsequently cured and then coated on-line with a suitable coating. Glass fiber products made by the novel inventive process are also disclosed.
Inventors
- 👤 Kenneth D. Werbowy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:26
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/587
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
127 words
A process for the production of glass fiber products comprising the steps of: (a) combining glass fibers with a heat curable binder composition; (b) consolidating the glass fibers and heat curable binder onto a conveyor; (c) placing a cured glass fiber mass having a uniform thickness in the range of about 10-20 mils onto the surface of the thus consolidated mass of fibers and heat curable binder; (d) conveying the resulting product of (c) above to a curing means; (e) curing the resulting product of (d) at a temperature in the range of about 500°-550° F. for about 1-6 minutes; (f) conveying the product of (e) to a knife coating means; and (g) thereafter applying a paint coating to the surface of the resulting product of (e).
Claim 2
Dependent Claim
127 words
A process for the production of glass fiber products comprising the steps of: (a) combining glass fibers with a heat curable binder composition; (b) consolidating the glass fibers and heat curable binder onto a conveyor; (c) placing a cured glass fiber mass having a uniform thickness in the range of about 10-20 mils onto the surface of the thus consolidated mass of fibers and heat curable binder; (d) conveying the resulting product of (c) above to a curing means; (e) curing the resulting product of (d) at a temperature in the range of about 500°-550° F. for about 1-6 minutes; (f) conveying the product of (e) to a knife coating means; and (g) thereafter applying a paint coating to the surface of the resulting product of (e).
Claim 3
Dependent Claim
16 words
A process according to claim 1 wherein the coated product resulting from 1(g) is dried on-line.
Claim 4
Dependent Claim
19 words
A process according to claim 1 wherein said glass fibers in 1(a) are formed from molten streams of glass.
Claim 5
Dependent Claim
17 words
A process according to claim 1 wherein said heat curable binder in 1(a) is a phenolic resin.
Claim 6
Dependent Claim
15 words
A process according to claim 1 wherein said curing means in 1(d) is an oven.
Claim 7
Dependent Claim
16 words
A process according to claim 1 wherein said coating in 1(g) is a latex based paint.
Claim 8
Dependent Claim
11 words
The product formed by the method as claimed in claim 1.
References Cited (Backward Citations)
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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) | 1989-11-03 | 1990-05-05 | 1990-11-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-11-03 | 1994-05-05 | 1994-11-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-11-03 | 1998-05-05 | 1998-11-04 | $7700.00 | Window Closed / Lapsed |