US4012547A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High performance hot melt adhesive backsizing compositions and carpet made therewith
Assignee: EIDP Inc
•
Filing: 1975-07-18
•
Granted: 1977-03-15
•
Expires: 1995-07-18
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
2026-10-25 22:52
CPC Classifications
C; C08; C08L; C08L101/00; C08K; C08K3/00; C08K3/01; C08K3/013; C08K3/014; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/08; C08L57/00; C08L65/00; C08L91/00; C08L91/06; 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; D06N2203/06; D06N2203/061; D06N2205/00; D06N2205/06; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/23986; Y10T428/23993
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
171 words
A composition having a tensile elongation of about 50 to 400 percent comprising A. about 3 to 15 weight percent ethylene/vinyl ester copolymer having a melt index of about 2 to 100, a copolymerized ethylene content of about 67 to 90 weight percent, a copolymerized vinyl ester content of about 10 to 33 weight percent, wherein the acid moiety of said vinyl ester contains 1-4 carbon atoms, B. about 15 to 40 weight percent of a hydrocarbon resin or a mixture of several hydrocarbon resins having a ring and ball softening point of about 50° -70° C. and a viscosity of 0.5 to 1.5 poise at 135° C., C. 0 to about 3 weight percent of a low molecular weight ethylene homopolymer having a molecular weight of about 1500-4000, density of 0.91-0.96 g./cm. 3 and a melting point of about 220° F.-270° F. D. 0 to about 3 weight percent of a paraffin wax, E. 0 to 0.3 weight percent of an antioxidant, and F. about 40 to 75 percent filler.
Claim 2
Dependent Claim
171 words
A composition having a tensile elongation of about 50 to 400 percent comprising A. about 3 to 15 weight percent ethylene/vinyl ester copolymer having a melt index of about 2 to 100, a copolymerized ethylene content of about 67 to 90 weight percent, a copolymerized vinyl ester content of about 10 to 33 weight percent, wherein the acid moiety of said vinyl ester contains 1-4 carbon atoms, B. about 15 to 40 weight percent of a hydrocarbon resin or a mixture of several hydrocarbon resins having a ring and ball softening point of about 50° -70° C. and a viscosity of 0.5 to 1.5 poise at 135° C., C. 0 to about 3 weight percent of a low molecular weight ethylene homopolymer having a molecular weight of about 1500-4000, density of 0.91-0.96 g./cm. 3 and a melting point of about 220° F.-270° F. D. 0 to about 3 weight percent of a paraffin wax, E. 0 to 0.3 weight percent of an antioxidant, and F. about 40 to 75 percent filler.
Claim 3
Dependent Claim
15 words
The composition of claim 1 having a tensile elongation of at least about 200 percent.
Claim 4
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 10 pounds.
Claim 5
Dependent Claim
29 words
The composition of claim 1 wherein said ethylene/vinyl ester copolymer is present in about 5 to 10 weight percent and has a melt index of about 10 to 25.
Claim 6
Dependent Claim
29 words
The composition of claim 4 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 7
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 5, said carpet having an average tuft bind of at least 10 pounds.
Claim 8
Dependent Claim
18 words
The composition of claim 5 wherein said hydrocarbon resin is present in about 25 to 35 weight percent.
Claim 9
Dependent Claim
15 words
The composition of claim 7 having a tensile elongation of at least about 200 percent.
Claim 10
Dependent Claim
12 words
The composition of claim 8 wherein said vinyl ester is vinyl acetate.
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 17, said carpet having an average tuft bind of at least 10 pounds.
References Cited (Backward Citations)
US3583936A
Cited
US3914489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |