Patent US4673604A successfully refreshed from Google Patents.
US4673604A
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Extrusion coated carpet backing and method of manufacture
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1984-09-27
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Granted: 1987-06-16
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Expires: 2004-09-27
Abstract
Abstract A carpet construction wherein a primary carpet backing is coated with an elastomeric film and face yarns are stitched into the coated primary carpet backing.
Inventors
- 👤 William J. Frain, III
- 👤 Donald R. Hazelton
- 👤 Edgar W. Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:56
CPC Classifications
D; D05; D05C; D05C17/00; D05C17/02; D06; D06N; D06N7/00; D06N7/0063; D06N7/0068; D06N7/0071; D06N7/0076; D06N2201/00; D06N2201/02; D06N2201/0245; D06N2201/0254; D06N2201/0263; D06N2201/04; D06N2201/042; D06N2203/00; D06N2203/04; D06N2203/042; D06N2205/00; D06N2205/06; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T428/24; Y10T428/24058; Y10T428/24074; Y10T428/24091
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
46 words
A carpet construction comprising (a) a polyolefin primary carpet backing fabric having a thin elastomer containing film coextruded to at least one side thereof, and (b) face yarns stitched into said primary carpet backing fabric wherein said elastomer containing film comprises an elastomer and a polyolefin.
Claim 2
Dependent Claim
46 words
A carpet construction comprising (a) a polyolefin primary carpet backing fabric having a thin elastomer containing film coextruded to at least one side thereof, and (b) face yarns stitched into said primary carpet backing fabric wherein said elastomer containing film comprises an elastomer and a polyolefin.
Claim 3
Dependent Claim
42 words
The carpet construction of claim 1 wherein the carpet backing is woven fabric and wherein the face yarn having a denier between 850 and 2200 is stitched into said carpet backing in a pattern of at least 48 stitches per square inch.
Claim 4
Dependent Claim
41 words
The carpet construction of claim 1 wherein the primary carpet backing is woven PP, and wherein the film comprises a blend of from 1 to 20 wt % of polyolefin elastomer and from 80 to 99 wt % of a polyolefin.
Claim 5
Dependent Claim
47 words
The carpet construction of claim 1 wherein the film comprises a blend of (a) from 1 to 20 wt % of an olefinic elastomer, (b) from 4 to 30 wt % of an ethylene copolymer, and (c) from 50 to 95 wt % of a propylene polymer.
Claim 6
Dependent Claim
15 words
The carpet construction of claim 4 wherein the blend further includes an extender hydrocarbon oil.
Claim 7
Dependent Claim
15 words
The carpet construction of claim 4 wherein the copolymer is an EVA or an EAA.
Claim 8
Dependent Claim
15 words
The carpet construction of claim 1 wherein the primary carpet backing is a nonwoven scrim.
Claim 9
Dependent Claim
15 words
The carpet construction of claim 4 wherein the film is less than 5 mils thick.
Claim 10
Dependent Claim
15 words
The carpet construction of claim 8 wherein the film is adhered by hot melt coextrusion.
Claim 11
Dependent Claim
13 words
The carpet construction of claim 9 wherein the elastomer is an olefinic elastomer.
Claim 12
Dependent Claim
13 words
The carpet construction of claim 10 wherein the elastomer is EPR or EPDM.
Claim 13
Independent Claim
53 words
A method of manufacturing a carpet construction which comprises: (a) extrusion coating onto a polyolefin primary carpet backing fabric a thin film comprising a hot melt blend of a major amount of a polyolefin and a minor amount of an olefinic elastomer; and (b) thereafter stitching into said coated carpet backing face yarns.
Claim 14
Independent Claim
53 words
A method of manufacturing a carpet construction which comprises: (a) extrusion coating onto a polyolefin primary carpet backing fabric a thin film comprising a hot melt blend of a major amount of a polyolefin and a minor amount of an olefinic elastomer; and (b) thereafter stitching into said coated carpet backing face yarns.
Claim 15
Dependent Claim
58 words
The method of claim 12 wherein the film comprises a blend of (a) from 1 to 20 wt % of an olefinic elastomer, (b) from 4 to 30 wt % of an ethylene copolymer, and (c) from 50 to 95 wt % of a propylene polymer (d) from 1 to 10 wt % of an extender hydrocarbon oil.
Claim 16
Dependent Claim
14 words
The method of claim 13 wherein the film is less than 5 mils thick.
Claim 17
Dependent Claim
50 words
The method of claim 13 wherein the carpet backing fabric is woven yarns having a denier between 350 and 1300 and the face yarn has a denier between 850 and 2200 and is stitched into said carpet backing at a stitch pattern of at least 48 stitches per square inch.
Claim 18
Dependent Claim
25 words
The method of claim 15 wherein the face yarn is nylon, polyester, acrylic, or rayon arranged to form a geometric pattern on the carpet fabric.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-06-15 | 1990-12-15 | 1991-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-06-15 | 1994-12-15 | 1995-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-06-15 | 1998-12-15 | 1999-06-16 | $7700.00 | Window Closed / Lapsed |