US4587278A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sound-insulating boards based on mineral fibers and thermoplastic binders
Assignee: BASF SE
•
Filing: 1984-04-12
•
Granted: 1986-05-06
•
Expires: 2004-04-12
Abstract
Abstract Sound-insulating boards which are based on mineral fibers and thermoplastic binders and may or may not additionally contain fillers, flameproofing agents and water repellants contain, as the binder, from 4 to 20%, based on the weight of the mineral fibers, of polymers having a glass transition temperature of from 30° to 80° C. and consisting of not less than 60% by weight, based on the copolymer, of (meth)acrylates of 1 to 4 carbon atoms and as much as 40% by weight of acrylonitrile and/or styrene.
Inventors
- 👤 Bernhard Dotzauer
- 👤 Hans Kast
- 👤 Gernot Franzmann
- 👤 Gregor Ley
- 👤 Wilhelm F. Beckerle
- 👤 Wolfgang Schilder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:38
CPC Classifications
C; C04; C04B; C04B26/00; C04B26/02; C04B26/04; C04B26/06; C08; C08K; C08K7/00; C08K7/02; C08K7/04; C04B2103/00; C04B2103/60; C04B2103/63; C04B2103/65; C04B2111/00; C04B2111/52
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
81 words
A sound-insulating board which comprises mineral fibers and a thermoplastic binder, wherein said board contains as the binder from 4 to 20%, based on the weight of the mineral fibers, of a polymer having a glass transition temperature of from 38° to 80° C. and consisting of from 60 to 100% by weight of (meth)acrylates of alkanols of 1 to 4 carbon atoms and from 0 to 40% by weight of acrylonitrile and/or styrene, the percentages being based on the copolymer.
Claim 2
Dependent Claim
81 words
A sound-insulating board which comprises mineral fibers and a thermoplastic binder, wherein said board contains as the binder from 4 to 20%, based on the weight of the mineral fibers, of a polymer having a glass transition temperature of from 38° to 80° C. and consisting of from 60 to 100% by weight of (meth)acrylates of alkanols of 1 to 4 carbon atoms and from 0 to 40% by weight of acrylonitrile and/or styrene, the percentages being based on the copolymer.
Claim 3
Dependent Claim
12 words
The sound-insulating board of claim 1, wherein said board additionally contains fillers.
Claim 4
Dependent Claim
13 words
The sound-insulating board of claim 1, wherein said board additionally contains flameproofing agents.
Claim 5
Dependent Claim
13 words
The sound-insulating board of claim 1, wherein said board additionally contains water repellants.
Claim 6
Dependent Claim
18 words
The sound-insulating board of claim 1, wherein the mineral fibers are rock wool, basalt wool or glass fibers.
Claim 7
Dependent Claim
28 words
The sound-insulating board of claim 1, wherein said mineral fibers have a length of about 0.2 to 8 cm and a thickness of about 1.7 to 3.3 dtex.
Claim 8
Dependent Claim
12 words
The sound-insulating board of claim 6, wherein the mineral fibers are sized.
Claim 9
Dependent Claim
18 words
The sound-insulating board of claim 7, wherein the mineral fibers are sized with mineral oils or synthetic polymers.
Claim 10
Dependent Claim
16 words
The sound-insulating board of claim 8, wherein the synthetic polymers are polyacrylate dispersions or polyacrylic acids.
Claim 11
Dependent Claim
21 words
The sound-insulating board of claim 1, wherein acrylonitrile and/or styrene is contained in an amount of 20 to 40% by weight.
Claim 12
Dependent Claim
19 words
The sound-insulating board of claim 10, wherein the amount of acrylonitrile and/or styrene is 30 to 40% by weight.
References Cited (Backward Citations)
US4433020A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-05-05 | 1989-11-04 | 1990-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-05-05 | 1993-11-04 | 1994-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-05-05 | 1997-11-04 | 1998-05-06 | $7700.00 | Window Closed / Lapsed |