US4258094A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Melt bonded fabrics and a method for their production
Assignee: Brunswick Corp
•
Filing: 1979-04-26
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Granted: 1981-03-24
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Expires: 1999-04-26
Abstract
Abstract A melt bonded fabric is produced by blending particular ethylene-vinyl acetate fibers with fibers of higher melting materials, forming a fabric thereof as by needle punching, and thereafter subjecting the fabric to temperatures above the melting point of ethylene-vinyl acetate but below that of the other fibers in the fabric.
Inventors
- 👤 Joseph C. Benedyk
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 04:39
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/40; D04H1/54; D04H1/44; D04H1/46; D04H1/48; D04H1/485; D04H1/498; D04H3/00; D04H3/02; D04H3/04; Y; Y10; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23979; Y10T442/00; Y10T442/10; Y10T442/184; Y10T442/197; Y10T442/60; Y10T442/659; Y10T442/666; Y10T442/667; Y10T442/68
Claims Analysis
Total Claims: 37
Claim 1
Independent Claim
68 words
A method for making a melt bonded fabric which comprises blending ethylene-vinyl acetate fibers with fibers of a higher melting point polymer in a mat upon a scrim, needle punching said mat and scrim to form a web of said blended fibers and thereafter heating the web to a temperature above the melting point of ethylene-vinyl acetate but below the melting point of said higher melting point polymer.
Claim 2
Independent Claim
68 words
A method for making a melt bonded fabric which comprises blending ethylene-vinyl acetate fibers with fibers of a higher melting point polymer in a mat upon a scrim, needle punching said mat and scrim to form a web of said blended fibers and thereafter heating the web to a temperature above the melting point of ethylene-vinyl acetate but below the melting point of said higher melting point polymer.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein said ethylene-vinyl acetate fibers have an elastic modulus in the range of 5,000 to 60,000 psi.
Claim 4
Dependent Claim
22 words
The method of claim 2 wherein the ratio of ethylene-vinyl acetate fibers to higher melting point fibers ranges from 5:95 to 50:50.
Claim 5
Dependent Claim
23 words
The method of claim 3 wherein said higher melting point fiber is selected from the group consisting of polypropylene, polyamide and mixtures thereof.
Claim 6
Dependent Claim
13 words
The method of claim 3 wherein said higher melting point fiber is polypropylene.
Claim 7
Dependent Claim
13 words
The method of claim 3 wherein said higher melting point fiber is polyamide.
Claim 8
Dependent Claim
22 words
The method of claim 3 wherein the vinyl acetate content of said ethylene-vinyl acetate is in the range of 5 to 20%.
Claim 9
Dependent Claim
29 words
The method of claim 7 wherein said ethylene-vinyl acetate is cross-linked after melt bonding to the extent that the gel content is greater than 15% but less than 90%.
Claim 10
Dependent Claim
21 words
The method of claim 1 wherein said web is tufted with yarn of a higher melting point fiber after melt bonding.
Claim 11
Dependent Claim
22 words
The method of claim 1 wherein the vinyl acetate content of said ethylene-vinyl acetate is in the range of 5 to 20%.
Claim 12
Dependent Claim
29 words
The method of claim 10 wherein said ethylene-vinyl acetate is cross-linked after melt bonding to the extent that the gel content is greater than 15% but less than 90%.
Claim 13
Dependent Claim
13 words
The method of claim 1 wherein said higher melting point polymer is polypropylene.
Claim 14
Dependent Claim
13 words
The method of claim 1 wherein said higher melting point polymer is polyamide.
Claim 15
Dependent Claim
10 words
The method of claim 9 wherein said yarn comprises polypropylene.
Claim 16
Dependent Claim
10 words
The method of claim 9 wherein said yarn comprises polyamide.
Claim 17
Independent Claim
86 words
A method for making a melt bonded fabric which comprises blending ethylene-vinyl acetate fibers with fibers of a higher melting point polymer by laying a mat of said ethylene-vinyl acetate fibers upon a needle bonded web of said higher melting point polymer fibers, needle bonding said mat to said web to form a composite web of said blended fibers, and thereafter heating said composite web to a temperature above the melting point of ethylene-vinyl acetate but below the melting point of said higher melting point polymer.
Claim 18
Independent Claim
86 words
A method for making a melt bonded fabric which comprises blending ethylene-vinyl acetate fibers with fibers of a higher melting point polymer by laying a mat of said ethylene-vinyl acetate fibers upon a needle bonded web of said higher melting point polymer fibers, needle bonding said mat to said web to form a composite web of said blended fibers, and thereafter heating said composite web to a temperature above the melting point of ethylene-vinyl acetate but below the melting point of said higher melting point polymer.
Claim 19
Dependent Claim
22 words
The method of claim 16, wherein said ethylene-vinyl acetate fibers have an elastic modulus in the range of 5,000 to 60,000 psi.
Claim 20
Dependent Claim
22 words
The method of claim 17, wherein the ratio of ethylene-vinyl acetate fibers to high melting point fibers ranges from 5:95 to 50:50.
Claim 21
Dependent Claim
9 words
A fabric made by the method of claim 1.
Claim 22
Dependent Claim
9 words
A fabric made by the method of claim 16.
Claim 23
Dependent Claim
13 words
The method of claim 16 wherein said higher melting point fiber is polypropylene.
Claim 24
Dependent Claim
13 words
The method of claim 16 wherein said higher melting point fiber is polyamide.
Claim 25
Dependent Claim
22 words
The method of claim 16 wherein the vinyl acetate content of said ethylene-vinyl acetate is in the range of 5 to 20%.
Claim 26
Dependent Claim
29 words
The method of claim 23 wherein said ethylene-vinyl acetate is cross-linked after melt bonding to the extent that the gel content is greater than 15% but less than 90%.
Claim 27
Dependent Claim
56 words
A melt bonded fabric comprising a blend of fused ethylene-vinyl acetate fibers with unfused fibers of a higher melting point polymer, said ethylene-vinyl acetate fibers having an elastic modulus in the range of 5,000 to 60,000 psi, said fabric having a surface comprised of said blend and being tufted with yarn to form a fabric face.
Claim 28
Dependent Claim
56 words
A melt bonded fabric comprising a blend of fused ethylene-vinyl acetate fibers with unfused fibers of a higher melting point polymer, said ethylene-vinyl acetate fibers having an elastic modulus in the range of 5,000 to 60,000 psi, said fabric having a surface comprised of said blend and being tufted with yarn to form a fabric face.
Claim 29
Dependent Claim
22 words
The fabric of claim 25 wherein the ratio of ethylene-vinyl acetate fibers to higher melting point fibers ranges from 5:95 to 50:50.
Claim 30
Dependent Claim
23 words
The fabric of claim 26 wherein said higher melting point fiber is selected from the group consisting of polypropylene, polyamide and mixtures thereof.
Claim 31
Dependent Claim
13 words
The fabric of claim 26 wherein said higher melting point fiber is polypropylene.
Claim 32
Dependent Claim
13 words
The fabric of claim 26 wherein said higher melting point fiber is polyamide.
Claim 33
Dependent Claim
27 words
The fabric of claim 25 wherein said yarn comprises fibers of a higher melting point polymer selected from the group consisting of polyamide, polypropylene and mixtures thereof.
Claim 34
Dependent Claim
10 words
The fabric of claim 25 wherein said yarn is polyamide.
Claim 35
Dependent Claim
10 words
The fabric of claim 25 wherein said yarn is polypropylene.
Claim 36
Dependent Claim
22 words
The fabric of claim 26 wherein the vinyl acetate content of said ethylene-vinyl acetate is in the range of 5 to 20%.
Claim 37
Dependent Claim
29 words
The fabric of claim 33 wherein said ethylene-vinyl acetate is cross-linked after melt bonding to the extent that the gel content is greater than 15% but less than 90%.
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) | 1984-03-23 | 1984-09-22 | 1985-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-23 | 1988-09-22 | 1989-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-23 | 1992-09-22 | 1993-03-24 | $7700.00 | Window Closed / Lapsed |