US3717528A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fabric bonding with thermoplastic fibrous mats
Assignee: General Mills Inc
•
Filing: 1970-02-05
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Granted: 1973-02-20
•
Expires: 1990-02-05
Abstract
Abstract A method of bonding fabrics wherein a fibrous, thermoplastic adhesive is sprayed on the fabric and the bond is formed by heating the fabric and adhesive. The resulting seam or sprayed area is porous, flexible and has good hand.
Inventors
- 👤 D Peerman
- 👤 Demmeltraadt H Van
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:40
CPC Classifications
B; B32; B32B; B32B5/00; B32B5/22; B32B5/24; B32B5/26; D; D06; D06M; D06M17/00; D06M17/04; B32B7/00; B32B7/04; B32B7/12; D06M17/08; D06M17/10; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/2481; Y10T428/249921; Y10T428/249953; Y10T428/249982; Y10T428/249984; Y10T428/31504; Y10T428/31725
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
113 words
A method of bonding fabrics with a porous, discontinuous fibrous thermoplastic adhesive mat comprised of a. placing the fibrous adhesive mat on a fabric surface, thereby leaving one surface of the adhesive exposed, b. placing a fabric on the exposed side of the adhesive, c. heating the fabric and adhesive mat to a sufficiently high temperature and for a sufficient period of time to bond the fabric surfaces together wherein the thermoplastic adhesive is a polyamide of a polymerized fatty acid having a dimer content of greater than 80 percent and a diamine of the formula H2N-R-NH2 wherein R is an aliphatic, cycloaliphatic or aromatic hydrocarbon radical of two to 40 carbon atoms.
Claim 2
Independent Claim
113 words
A method of bonding fabrics with a porous, discontinuous fibrous thermoplastic adhesive mat comprised of a. placing the fibrous adhesive mat on a fabric surface, thereby leaving one surface of the adhesive exposed, b. placing a fabric on the exposed side of the adhesive, c. heating the fabric and adhesive mat to a sufficiently high temperature and for a sufficient period of time to bond the fabric surfaces together wherein the thermoplastic adhesive is a polyamide of a polymerized fatty acid having a dimer content of greater than 80 percent and a diamine of the formula H2N-R-NH2 wherein R is an aliphatic, cycloaliphatic or aromatic hydrocarbon radical of two to 40 carbon atoms.
Claim 3
Dependent Claim
22 words
The method of claim 1 wherein the diamine is an alkylene diamine wherein the alkylene radical is two to eight carbon atoms.
Claim 4
Dependent Claim
11 words
The method of claim 2 wherein the diamine is hexamethylene diamine.
Claim 5
Dependent Claim
20 words
The method of claim 1 wherein the polymeric fat acid is a polymerized monocarboxylic acid having from 16-24 carbon atoms.
Claim 6
Dependent Claim
13 words
The method of claim 7 wherein the monocarboxylic acid has 18 carbon atoms.
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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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |