US3914489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High performance hot melt adhesive backsizing compositions and carpet made therewith
Assignee: EIDP Inc
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Filing: 1974-09-26
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Granted: 1975-10-21
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Expires: 1994-09-26
Abstract
Abstract Hot melt backsize compositions having high tensile elongation which result in tufted carpets having improved tuft bind comprise a blend of ethylene/vinyl ester copolymer, hydrocarbon resin, and, optionally, low molecular weight polyethylene, paraffin wax, anti-oxidant and filler.
Inventors
- 👤 George Elmer Smedberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:28
CPC Classifications
C; C08; C08L; C08L101/00; C09; C09J; C09J123/00; C09J123/02; C09J123/04; C09J123/08; D; D06; D06N; D06N7/00; D06N7/0063; D06N7/0071; D06N7/0078; C08L2666/00; C08L2666/02; D06N2203/00; D06N2203/04; D06N2203/042; Y; Y10; Y10S; Y10S524/00; Y10S524/914; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23993
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
182 words
A COMPOSITION HAVING A TENSILE ELONGATION OF ABOUT 700 TO 1500 PERCENT COMPRISING A. ABOUT 15-30 WEIGHT PERCENT ETHYLENE/VINYL ESTER COPOLYMER HAVING A MELT INDEX OF ABOUT 2 TO 100, A COPOLYMERIZED ETHYLENE CONTENT OF ABOUT 67 TO 84 WEIGHT PERCENT, A COPOLYMERIZED VINYL ESTER CONTENT OF ABOUT 16 TO 33 WEIGHT PERCENT, WHEREIN THE ACID MOIETY OF SAID VINYL ESTER CONTAINS 1 TO 4 CARBON ATOMS, B. ABOUT 30 TO 70 WEIGHT PERCENT OF ONE HYDROCARBON RESIN OR A MIXTURE OF TWO OR MORE HYDROCARBON RESINS WHEREIN SAID ONE HYDROCARBON RESIN OR SAID MIXTURE HAS A RING AND BALL SOFTENING POINT OF ABOUT 50*C. TO 70*C. AND A VISCOSITY OF ABOUT 0.5 TO 1.5 POISE AT 135*C., C. 0 TO ABOUT 5 WEIGHT PERCENT OF AN ETHYLENE HOMOPOLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 1500 TO 4000, DENSITY OF ABOUT 0.91 TO 0.96 F./CM.3, AND A MELTING POINT OF ABOUT 220*F. TO 270*F., D. 0 TO ABOUT 5 WEIGHT PERCENT OF A PARAFFIN WAX. E.0 TO ABOUT 0.3 WEIGHT PERCENT OF AN ANTIOXIDANT, AND F.0 TO ABOUT 40 WEIGHT PERCENT FILLER.
Claim 2
Dependent Claim
182 words
A COMPOSITION HAVING A TENSILE ELONGATION OF ABOUT 700 TO 1500 PERCENT COMPRISING A. ABOUT 15-30 WEIGHT PERCENT ETHYLENE/VINYL ESTER COPOLYMER HAVING A MELT INDEX OF ABOUT 2 TO 100, A COPOLYMERIZED ETHYLENE CONTENT OF ABOUT 67 TO 84 WEIGHT PERCENT, A COPOLYMERIZED VINYL ESTER CONTENT OF ABOUT 16 TO 33 WEIGHT PERCENT, WHEREIN THE ACID MOIETY OF SAID VINYL ESTER CONTAINS 1 TO 4 CARBON ATOMS, B. ABOUT 30 TO 70 WEIGHT PERCENT OF ONE HYDROCARBON RESIN OR A MIXTURE OF TWO OR MORE HYDROCARBON RESINS WHEREIN SAID ONE HYDROCARBON RESIN OR SAID MIXTURE HAS A RING AND BALL SOFTENING POINT OF ABOUT 50*C. TO 70*C. AND A VISCOSITY OF ABOUT 0.5 TO 1.5 POISE AT 135*C., C. 0 TO ABOUT 5 WEIGHT PERCENT OF AN ETHYLENE HOMOPOLYMER HAVING A MOLECULAR WEIGHT OF ABOUT 1500 TO 4000, DENSITY OF ABOUT 0.91 TO 0.96 F./CM.3, AND A MELTING POINT OF ABOUT 220*F. TO 270*F., D. 0 TO ABOUT 5 WEIGHT PERCENT OF A PARAFFIN WAX. E.0 TO ABOUT 0.3 WEIGHT PERCENT OF AN ANTIOXIDANT, AND F.0 TO ABOUT 40 WEIGHT PERCENT FILLER.
Claim 3
Dependent Claim
15 words
The composition of claim 1 having a tensile elongation of about 900 to 1000 percent.
Claim 4
Dependent Claim
29 words
The composition of claim 1 wherein said ethylene/vinyl ester copolymer is present in about 18 to 22 weight percent and has a melt index of about 10 to 25.
Claim 5
Dependent Claim
29 words
The composition of claim 3 wherein said copolymerized vinyl ester content is about 23 to 26 weight percent and the acid moiety thereof contains 2 to 3 carbon atoms.
Claim 6
Dependent Claim
18 words
The composition of claim 4 wherein said hydrocarbon resin is present in about 40 to 50 weight percent.
Claim 7
Dependent Claim
15 words
The composition of claim 5 having a tensile elongation of about 900 to 1000 percent.
Claim 8
Dependent Claim
12 words
The composition of claim 6 wherein said vinyl ester is vinyl acetate.
Claim 9
Dependent Claim
53 words
A CARPET COMPRISED OF A PRIMARY BACKING MATERIAL STITCHED WITH CLOSELY SPACED ERECT LOOPS OF YARN TO FORM A TUFTED STRUCTURE, THE BOTTOM SURFACE OF THE TUFTED STRUCTURE HAVING AS A TUFT BONDING BACKSIZE ADHESIVE COATING THE COMPOSITION OF CLAIM 7, SAID CARPET HAVING AN AVERAGE TUFT BEING OF AT LEAST 18 POUNDS.
Claim 10
Dependent Claim
53 words
A carpet comprised of a primary backing material stitched with closely spaced erect loops of yarn to form a tufted structure, the bottom surface of the tufted structure having as a tuft bonding backsize adhesive coating the composition of claim 4, said carpet having an average tuft bind of at least 18 pounds.
Claim 11
Dependent Claim
53 words
A carpet comprised of a primary backing material stitched with closely spaced erect loops of yarn to form a tufted structure, the bottom surface of the tufted structure having as a tuft bonding backsize adhesive coating the composition of claim 1, said carpet having an average tuft bind of at least 18 pounds.
References Cited (Backward Citations)
US3583936A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-20 | 1979-04-21 | 1979-10-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-20 | 1983-04-21 | 1983-10-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-20 | 1987-04-21 | 1987-10-21 | $7700.00 | Window Closed / Lapsed |