US4316929A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hot melt sizing compositions comprising an acrylic acid-alkyl (meth)acrylate terpolymer
Assignee: Eastman Chemical Co
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Filing: 1979-04-30
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Granted: 1982-02-23
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Expires: 1999-04-30
Abstract
Abstract Sizing compositions comprising a terpolymer derived from (a) about 50 to about 70% by weight of at least one lower alkyl acrylate, (b) about 20 to about 40% by weight of at least one lower alkyl methacrylate, and (c) about 10% by weight acrylic acid or salt thereof. Such sizing compositions are especially useful when applied as a hot melt to a variety of filaments, yarns, fabrics, etc.
Inventors
- 👤 John M. McIntire
- 👤 James M. Hawkins
- 👤 Raymond N. Vachon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:32
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/21; D06M15/263; Y; Y10; Y10S; Y10S526/00; Y10S526/935; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/2967; Y10T442/00; Y10T442/20; Y10T442/2402
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
123 words
A hot melt textile sizing composition comprising a terpolymer of (a) about 50 to about 70% by weight of at least one alkyl acrylate wherein the alkyl group contains from 1 to 4 carbon atoms, (b) about 20 to about 40% by weight of at least one alkyl methacrylate wherein the alkyl group contains from 1 to 4 carbon atoms, and (c) about 10% by weight acrylic acid or salt thereof, said terpolymer being dispersible in dilute sodium carbonate, and having a glass transition temperature of between 22° and about 40° C. and an I.V. of between about 0.1 and about 0.15 measured at 23° C. using 0.5 gram of polymer per 100 ml of a solvent consisting of a 60/40 mixture phenol/tetrachloroethanol.
Claim 2
Dependent Claim
123 words
A hot melt textile sizing composition comprising a terpolymer of (a) about 50 to about 70% by weight of at least one alkyl acrylate wherein the alkyl group contains from 1 to 4 carbon atoms, (b) about 20 to about 40% by weight of at least one alkyl methacrylate wherein the alkyl group contains from 1 to 4 carbon atoms, and (c) about 10% by weight acrylic acid or salt thereof, said terpolymer being dispersible in dilute sodium carbonate, and having a glass transition temperature of between 22° and about 40° C. and an I.V. of between about 0.1 and about 0.15 measured at 23° C. using 0.5 gram of polymer per 100 ml of a solvent consisting of a 60/40 mixture phenol/tetrachloroethanol.
Claim 3
Dependent Claim
12 words
Composition according to claim 1 wherein the alkyl acrylate is methyl acrylate.
Claim 4
Dependent Claim
12 words
Composition according to claim 1 wherein the alkyl methacrylate is methyl methacrylate.
Claim 5
Dependent Claim
19 words
Composition according to claim 1 wherein said alkyl acrylate is methyl acrylate and said alkyl methacrylate is methyl methacrylate.
Claim 6
Dependent Claim
38 words
Composition comprising the terpolymer described in claim 1 and from about 0.1 to about 5.0 by weight, based on the weight of the composition of at least one aliphatic monocarboxylic acid having from 8 to 18 carbon atoms.
Claim 7
Dependent Claim
12 words
Composition according to claim 5 wherein the monocarboxylic acid is stearic acid.
Claim 8
Dependent Claim
10 words
A textile material sized with the composition of claim 1.
Claim 9
Dependent Claim
10 words
A textile material sized with the composition of claim 5.
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) | 1985-02-22 | 1985-08-24 | 1986-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-22 | 1989-08-24 | 1990-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-22 | 1993-08-24 | 1994-02-23 | $7700.00 | Window Closed / Lapsed |