US4083824A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-vinyl surface covering composition
Assignee: Armstrong World Industries Inc
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Filing: 1977-04-20
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Granted: 1978-04-11
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Expires: 1997-04-20
Abstract
Abstract A non-vinyl flooring composition is described which comprises a mineral filler distributed substantially uniformly throughout a binder comprising a blend of a heteropolymer comprising at least two C 1 to C 8 linear or branched alkyl acrylates of Mw from about 100,000 to about 300,000 and further characterized by at least two glass transition temperatures, one being above 25° C., the other being below 25° C., and a random ionic copolymer of an α-olefin and an α,β-unsaturated carboxylic acid having 10% to 90% of the carboxylic acid group neutralized with metal ions.
Inventors
- 👤 Thomas G. Harris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:08
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/04; C08L33/06; C08L33/08; C08K; C08K3/00; C08K3/01; C08K3/013; C08K3/18; C08K3/24; C08K3/26; C08L23/00; C08L23/02; C08L23/04; C08L23/08; Y; Y10; Y10S; Y10S260/00; Y10S260/31
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
122 words
A non-vinyl surface covering compositions comprising (a) a mineral filler distributed substantially uniformly throughout (b) a binder comprising the components (1) a copoly block acrylate comprising at least two C 1 to C 8 linear or branched alkyl acrylates of Mw from about 100,000 to about 300,000 and further characterized by at least two glass transition temperatures, one being above 25° C., the other being below 25° C.; and (2) a random ionic copolymer comprising ethylene and 2.5% to 25% by weight acrylic acid or methyacrylic acid crosslinked by a monovalent or polyvalent metal ion, said ionic copolymer having a melt index of 0.1 to 1000 grams per minute, wherein the ratio of component (1):component (2):mineral filler is from 8-32:32-8:60 to 3-12:12-3:85.
Claim 2
Dependent Claim
122 words
A non-vinyl surface covering compositions comprising (a) a mineral filler distributed substantially uniformly throughout (b) a binder comprising the components (1) a copoly block acrylate comprising at least two C 1 to C 8 linear or branched alkyl acrylates of Mw from about 100,000 to about 300,000 and further characterized by at least two glass transition temperatures, one being above 25° C., the other being below 25° C.; and (2) a random ionic copolymer comprising ethylene and 2.5% to 25% by weight acrylic acid or methyacrylic acid crosslinked by a monovalent or polyvalent metal ion, said ionic copolymer having a melt index of 0.1 to 1000 grams per minute, wherein the ratio of component (1):component (2):mineral filler is from 8-32:32-8:60 to 3-12:12-3:85.
Claim 3
Dependent Claim
18 words
The composition of claim 1 wherein said component (2) is methacrylic acid and said metal ion is zinc.
Claim 4
Dependent Claim
21 words
The composition of claim 1 wherein said mineral filler is calcium carbonate of from about 40 to about 340 mesh (Tyler).
Claim 5
Dependent Claim
138 words
A non-vinyl, low-smoke surface covering composition comprising (a) 60% to 85% by weight of a non-fibrous filler, (b) 40% to 15% by weight of a binder comprising the components (1) 20% to 80% by weight based on total binder of a copoly block acrylate comprising at least two C 1 to C 8 linear or branched alkyl acrylates of Mw from about 100,000 to about 300,000 and further characterized by at least two glass transition temperatures, one being above 25° C., the other being below 25° C., and (2) 80% to 20% by weight based on total binder of a random ionic copolymer comprising ethylene and 2.5% to 25% by weight acrylic acid or methacrylic acid crosslinked by a monovalent or polyvalent metal ion, said ionic copolymer having a melt index of 0.1 to 1000 grams per minute.
Claim 6
Dependent Claim
138 words
A non-vinyl, low-smoke surface covering composition comprising (a) 60% to 85% by weight of a non-fibrous filler, (b) 40% to 15% by weight of a binder comprising the components (1) 20% to 80% by weight based on total binder of a copoly block acrylate comprising at least two C 1 to C 8 linear or branched alkyl acrylates of Mw from about 100,000 to about 300,000 and further characterized by at least two glass transition temperatures, one being above 25° C., the other being below 25° C., and (2) 80% to 20% by weight based on total binder of a random ionic copolymer comprising ethylene and 2.5% to 25% by weight acrylic acid or methacrylic acid crosslinked by a monovalent or polyvalent metal ion, said ionic copolymer having a melt index of 0.1 to 1000 grams per minute.
Claim 7
Dependent Claim
29 words
The surface covering composition of claim 4 wherein said non-fibrous filler is calcium carbonate, and said ionic copolymer has a melt index of 0.5 to 20 grams per minute.
Claim 8
Dependent Claim
25 words
The surface covering composition defined in claim 5 wherein the particle size of said calcium carbonate is about 40 mesh to about 340 mesh (Tyler).
Claim 9
Dependent Claim
21 words
Molded floor tiles from the composition defined in claim 4 having a tensile strength greater than 1800 psi to 3000 psi.
Claim 10
Dependent Claim
23 words
The molded floor tiles of claim 4 additionally containing asbestos and said component (2) is 30 to 70 weight percent of said binder.
References Cited (Backward Citations)
US3264272A
Cited
US3833708A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-04-10 | 1981-10-10 | 1982-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-04-10 | 1985-10-10 | 1986-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-04-10 | 1989-10-10 | 1990-04-11 | $7700.00 | Window Closed / Lapsed |