US3922418A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-sealable interlining for textile fabrics
Assignee: Raduner and Co AG
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Filing: 1973-07-02
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Granted: 1975-11-25
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Expires: 1993-07-02
Abstract
Abstract A heat-sealable textile sheet material suitable for use as an interlining for garments is prepared by applying to textile sheet material a coating of thermoplastic resin particles which do not undergo self-crosslinking at elevated temperatures, but which are crosslinkable at such temperatures by means of cross-linking agents. A crosslinking agent for the resin is included in the coating and is in contact with the resin particles only at their surfaces. The amount of crosslinking agent in the coating is insufficient to crosslink more than about 40 percent of the resin. Upon heating the sheet material bearing the coating of resin particles to elevated temperatures, only a portion of the resin particles is crosslinked. The heat-sealable interlining after being plied with a textile fabric and subjected to resincrosslinking temperatures produces a textile laminate capable of withstanding repeated laundering and dry cleaning operations without resin strike-through or strike-back.
Inventors
- 👤 Alfred E Lauchenauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:57
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; B32B38/00; B32B2038/0052; B32B2038/0076; B32B2437/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/2481; Y10T428/24826; Y10T428/24843
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
169 words
A process for producing a heat-sealable textile sheet material, particularly suitable for use as an interlining for garments, which comprises applying to a textile sheet material a coating consisting essentially of (1) discrete solid particles of a thermoplastic resin having a softening point between about 50* and 200*C, a Melt Flow Index of from about 20 to 50, and which upon being heated to a temperature of from about 50*C. to 200*C. does not undergo self-crosslinking but at such temperature is capable of being crosslinked by means of a crosslinking agent, said resin particles having an average particle size of from about 2 to 300 microns, and (2) a crosslinking agent for said resin, said crosslinking agent being in contact only with the surface of said resin particles and being present in an amount sufficient to crosslink not more than about 40 percent, by weight of said resin, said resin particles after being heated to said crosslinking temperature having an average Melt Flow Index not greater than about 10.
Claim 2
Dependent Claim
169 words
A process for producing a heat-sealable textile sheet material, particularly suitable for use as an interlining for garments, which comprises applying to a textile sheet material a coating consisting essentially of (1) discrete solid particles of a thermoplastic resin having a softening point between about 50* and 200*C, a Melt Flow Index of from about 20 to 50, and which upon being heated to a temperature of from about 50*C. to 200*C. does not undergo self-crosslinking but at such temperature is capable of being crosslinked by means of a crosslinking agent, said resin particles having an average particle size of from about 2 to 300 microns, and (2) a crosslinking agent for said resin, said crosslinking agent being in contact only with the surface of said resin particles and being present in an amount sufficient to crosslink not more than about 40 percent, by weight of said resin, said resin particles after being heated to said crosslinking temperature having an average Melt Flow Index not greater than about 10.
Claim 3
Dependent Claim
29 words
The process according to claim 1 in which said coating is in the form of a paste having a liquid phase in which said resin particles are substantially insoluble.
Claim 4
Dependent Claim
17 words
The process according to claim 2 in which said crosslinking agent is soluble in said liquid phase.
Claim 5
Dependent Claim
21 words
The process according to claim 3 in which said paste consists essentially of polyamide resin particles in an aqueous liquid phase.
Claim 6
Dependent Claim
30 words
The process according to claim 1 in which said coating is in the form of a powder consisting essentially of a mixture of solid particles of resin and crosslinking agent.
Claim 7
Dependent Claim
22 words
The process according to claim 5 in which said powder consists essentially of a mixture of polyamide resin and masked isocyanate particles.
Claim 8
Dependent Claim
21 words
The process according to claim 1 in which said coating is discontinuous and comprises a pattern of substantially uniformly spaced dots.
Claim 9
Dependent Claim
165 words
A heat-sealable textile sheet material, particularly suitable as an interliner for garments comprising a textile sheet material having on a surface thereof a coating consisting essentially of (1) discrete solid particles of a thermoplastic resin having a softening point between about 50* and 200*C., a Melt Flow Index of from about 20 to 50, and which upon being heated to a temperature of from about 50*C. to 200*C. does not undergo self-crosslinking but at such temperature is capable of being crosslinked by means of a crosslinking agent, said resin particles having an average particle size of from about 2 to 300 microns, and (2) a crosslinking agent for said resin, said crosslinking agent being in contact only with the surface of said resin particles and being present in an amount sufficient to crosslink not more than about 40 percent by weight, of said resin, said resin particles after being heated to said crosslinking temperature having an average MElt Flow Index not greater than about 10.
Claim 10
Dependent Claim
165 words
A heat-sealable textile sheet material, particularly suitable as an interliner for garments comprising a textile sheet material having on a surface thereof a coating consisting essentially of (1) discrete solid particles of a thermoplastic resin having a softening point between about 50* and 200*C., a Melt Flow Index of from about 20 to 50, and which upon being heated to a temperature of from about 50*C. to 200*C. does not undergo self-crosslinking but at such temperature is capable of being crosslinked by means of a crosslinking agent, said resin particles having an average particle size of from about 2 to 300 microns, and (2) a crosslinking agent for said resin, said crosslinking agent being in contact only with the surface of said resin particles and being present in an amount sufficient to crosslink not more than about 40 percent by weight, of said resin, said resin particles after being heated to said crosslinking temperature having an average MElt Flow Index not greater than about 10.
Claim 11
Dependent Claim
18 words
Heat-sealable textile sheet material according to claim 8 in which said resin particles are coated with crosslinking agent.
Claim 12
Dependent Claim
27 words
Heat-sealable textile sheet material according to claim 9 in which said resin particles comprise a polyamide and said crosslinking agent comprises an ethylene glycol acetal of formaldehyde.
Claim 13
Dependent Claim
23 words
Heat-sealable textile sheet material according to claim 9 in which said coating is discontinuous and comprises a pattern of substantially uniformly spaced dots.
Claim 14
Dependent Claim
32 words
Heat-sealable textile sheet material according to claim 8 in which said coating is in the form of a powder consisting essentially of a mixture of solid particles of resin and crosslinking agent.
Claim 15
Dependent Claim
24 words
Heat-sealable textile sheet material according to claim 10 in which said resin particles comprise a polyamide and said crosslinking agent comprises a masked isocyanate.
Claim 16
Dependent Claim
196 words
A process for making a textile laminate which comprises placing a textile fabric against the surface of an interliner having a heat-sealable coating, said coating consisting essentially of (1) discrete solid particles of a themoplastic resin having a softening point between about 50* and 200*C., a Melt Flow Index of from about 20 to 50, and which upon being heated to a temperature of from about 50*C. to 200*C. does not undergo self-crosslinking but at such temperature is capable of being crosslinked by means of a crosslinking agent, said resin particles having an average particle size of from about 2 to 200 microns, and (2) a crosslinking agent for said resin, said crosslinking agent being in contact only with the surface of said resin particles and being present in an amount sufficient to crosslink not more than about 40 percent, by weight, of said resin, said resin particles after being heated to said crosslinking temperature having an average Melt Flow Index not greater than about 10, and pressing the resulting assembly at a temperature of from about 50* to 200*C. to crosslink a portion of said resin, and to bond together said textile fabric and interliner.
Claim 17
Dependent Claim
196 words
A process for making a textile laminate which comprises placing a textile fabric against the surface of an interliner having a heat-sealable coating, said coating consisting essentially of (1) discrete solid particles of a themoplastic resin having a softening point between about 50* and 200*C., a Melt Flow Index of from about 20 to 50, and which upon being heated to a temperature of from about 50*C. to 200*C. does not undergo self-crosslinking but at such temperature is capable of being crosslinked by means of a crosslinking agent, said resin particles having an average particle size of from about 2 to 200 microns, and (2) a crosslinking agent for said resin, said crosslinking agent being in contact only with the surface of said resin particles and being present in an amount sufficient to crosslink not more than about 40 percent, by weight, of said resin, said resin particles after being heated to said crosslinking temperature having an average Melt Flow Index not greater than about 10, and pressing the resulting assembly at a temperature of from about 50* to 200*C. to crosslink a portion of said resin, and to bond together said textile fabric and interliner.
Claim 18
Dependent Claim
20 words
The process according to claim 14 in which said resin particles forming said heat-sealable coating are coated with crosslinking agent.
Claim 19
Dependent Claim
31 words
The process according to claim 14 in which said heatsealable coating is in the form of a powder consisting essentially of a mixture of solid particles of resin and crosslinking agent.
Claim 20
Dependent Claim
22 words
The process according to claim 14 in which said heatsealable coating is discontinuous and comprises a pattern of substantially uniformly spaced dots.
Claim 21
Dependent Claim
25 words
The process according to claim 14 in which said resin particles comprise a polyamide and said crosslinking agent comprises an ethylene glycol acetal of formaldehyde.
Claim 22
Dependent Claim
22 words
The process according to claim 14 in which said resin particles comprise a polyamide and said crosslinking agent comprises a masked isocyanate.
Claim 23
Dependent Claim
164 words
A TEXTILE LAMINATE COMPRISING A TEXTILE FABRIC BONDED TO AN INTERLINER BY MEANS OF A LAYER OF RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A PARTIALLY CROSSLINKED THERMOPLASTIC RESIN DERIVED FROM (1) DISCRETE SOLID PARTICLES OF A THERMOPLASTIC RESIN HAVING A SOFTENING POINT BETWEEN ABOUT 50* AND 200*C., A MELT FLOW INDEX OF FROM ABOUT 20 TO 50, AND WHICH UPON BEING HEATED TO A TEMPERATURE OF FROM ABOUT 50*C. TO 200*C. DOES NOT UNDERGO SELF-CROSSLINKING BUT AT SUCH TEMPERATURE IS CAPABLE OF BEING CORSSLINKED BY MEANS OF ING AGENT, SAIID RESIN PARTICLLES HAVING AN AVERAGE PARTICLE SIZE OF FROM ABOUT 2 TO 300 MICRONS, AND (2) A CROSSLINKING AGENT FOR SAID RESIN, SAID CROSSLINKING AGENT BEING IN CONTACT ONLY WITH THE SURFACE OF SAID RESIN PARTICLLES AND BEING PRESENT IN AN AMOUNT SUFFICIENT TO CROSSLINK NOT MORE THAN ABOUT 40 PERCENT, BY WEIGHT, OF SAID RESIN, SAID RESINOUS COMPOSITION, AFTER BEING HEATED TO SAIID CROSSLINKING TEMPERATURE, HAVING A MELT INDEX NOT GREATER THAN ABOUT 10.
Claim 24
Dependent Claim
164 words
A TEXTILE LAMINATE COMPRISING A TEXTILE FABRIC BONDED TO AN INTERLINER BY MEANS OF A LAYER OF RESINOUS COMPOSITION CONSISTING ESSENTIALLY OF A PARTIALLY CROSSLINKED THERMOPLASTIC RESIN DERIVED FROM (1) DISCRETE SOLID PARTICLES OF A THERMOPLASTIC RESIN HAVING A SOFTENING POINT BETWEEN ABOUT 50* AND 200*C., A MELT FLOW INDEX OF FROM ABOUT 20 TO 50, AND WHICH UPON BEING HEATED TO A TEMPERATURE OF FROM ABOUT 50*C. TO 200*C. DOES NOT UNDERGO SELF-CROSSLINKING BUT AT SUCH TEMPERATURE IS CAPABLE OF BEING CORSSLINKED BY MEANS OF ING AGENT, SAIID RESIN PARTICLLES HAVING AN AVERAGE PARTICLE SIZE OF FROM ABOUT 2 TO 300 MICRONS, AND (2) A CROSSLINKING AGENT FOR SAID RESIN, SAID CROSSLINKING AGENT BEING IN CONTACT ONLY WITH THE SURFACE OF SAID RESIN PARTICLLES AND BEING PRESENT IN AN AMOUNT SUFFICIENT TO CROSSLINK NOT MORE THAN ABOUT 40 PERCENT, BY WEIGHT, OF SAID RESIN, SAID RESINOUS COMPOSITION, AFTER BEING HEATED TO SAIID CROSSLINKING TEMPERATURE, HAVING A MELT INDEX NOT GREATER THAN ABOUT 10.
Claim 25
Dependent Claim
20 words
A textile laminate according to claim 20 in which said resinous composition consists essentially of a partially crosslinked polyamide resin.
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) | 1978-11-24 | 1979-05-26 | 1979-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-24 | 1983-05-26 | 1983-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-24 | 1987-05-26 | 1987-11-25 | $7700.00 | Window Closed / Lapsed |