US4596737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the treatment and production of glass fiber mats
Assignee: Johns Manville
•
Filing: 1985-07-23
•
Granted: 1986-06-24
•
Expires: 2005-07-23
Abstract
Abstract A process for treating a glass fiber mat comprising contacting the surface of a cured mass of glass fibers with at least one latex polymer in such a manner as to thoroughly coat the surface of said cured mass of glass fibers. Preferably, the latex polymer is elastomeric in nature. Also disclosed is a process for making a glass fiber mat as well as a glass mat product produced by the inventive process.
Inventors
- 👤 Kenneth D. Werbowy
- 👤 Frederick A. Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:29
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/58; D04H1/64; D04H1/42; D04H1/4209; D04H1/4218; D04H1/587; Y; Y10; Y10T; Y10T442/00; Y10T442/60; Y10T442/603; Y10T442/604
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
A process for the preparation of a glass fiber product comprising the steps of: (a) combining the glass fibers with a heat curable binder composition; (b) consolidating the fibers and heat curable binder into a loosely packed mass; (c) curing said consolidated fibers under suitable conditions of time and temperature; and (d) thereafter contacting the cured mass of glass fibers with a latex polymer of an ethylene-vinyl acetate-vinyl chloride terpolymer in such a manner so as to thoroughly coat the surface of said cured mass of glass fibers with the latex polymer.
Claim 2
Dependent Claim
92 words
A process for the preparation of a glass fiber product comprising the steps of: (a) combining the glass fibers with a heat curable binder composition; (b) consolidating the fibers and heat curable binder into a loosely packed mass; (c) curing said consolidated fibers under suitable conditions of time and temperature; and (d) thereafter contacting the cured mass of glass fibers with a latex polymer of an ethylene-vinyl acetate-vinyl chloride terpolymer in such a manner so as to thoroughly coat the surface of said cured mass of glass fibers with the latex polymer.
Claim 3
Dependent Claim
17 words
A process according to claim 1 wherein said heat curable binder in 1(b) is a urea-formaldehyde resin.
Claim 4
Dependent Claim
24 words
A process according to claim 1 wherein the combined glass fibers resulting from 1(a) are projected onto a conveyor before the consolidation in 1(b).
Claim 5
Dependent Claim
25 words
A process according to claim 1 wherein the curing in 1(c) is conducted at a temperature of about 300°-600° F. for about 5 seconds-5 minutes.
Claim 6
Dependent Claim
22 words
A process according to claim 4 wherein said curing is conducted at a temperature of about 375°-450° F. for about 1-3 minutes.
Claim 7
Dependent Claim
14 words
A process according to claim 1 wherein said latex polymer is an elastomeric polymer.
Claim 8
Dependent Claim
28 words
A process according to claim 1 wherein said contacting in 1(d) is effected by dipping said cured mass of glass fibers into a solution of said latex polymer.
Claim 9
Dependent Claim
11 words
A glass fiber mat produced by the process of claim 1.
References Cited (Backward Citations)
US2922472A
Cited
US3846225A
Cited
US3616179A
Cited
US3616181A
Cited
US4014835A
Cited
US4064359A
Cited
US4014726A
Cited
US4060658A
Cited
US4126729A
Cited
US4178412A
Cited
US4122074A
Cited
US4163073A
Cited
US4291095A
Cited
US4215161A
Cited
US4341674A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-06-23 | 1989-12-23 | 1990-06-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-06-23 | 1993-12-23 | 1994-06-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-06-23 | 1997-12-23 | 1998-06-24 | $7700.00 | Window Closed / Lapsed |