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Self-heating composite bonding means and method

Assignee: HELLER WILLIAM C JUN
•
Filing: 1972-10-20
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Granted: 1975-08-19
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Expires: 1992-10-20
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Abstract

Abstract A self-heating stratified structure suitable for joining first and second thermally bondable bodies exhibiting bonding incompatibility. The structure includes a first layer having bonding compatibility with a first of the bodies, a second material layer having bonding compatibility with a second of the bodies and a fibrous stratum interposed between the first and second layers for providing internal cohesion and integrity to the bonding agent. At least one of the first and second material layers is heatable upon exposure to a selected form of indirectly applied energy such as an alternating magnetic or electric field. In bonding the first and second bodies, the composite bonding agent is positioned between the two bodies and exposed to the energy to effect heat seals between the bodies and the agent and thus between the two bodies.

Inventors

  • 👤 Alfred F Leatherman

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 15:37
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; B29; B29C; B29C65/00; B29C65/48; B29C65/50; B29C65/5007; B29C65/5021; B29C65/02; B29C65/34; B29C65/36; B29C65/3604; B29C65/3608; B29C65/3644; B29C65/3656; B29C65/4805; B29C65/481; B29C65/4815; B29C65/4855; B29C65/5028; B29C65/5057; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/131; B29C66/40; B29C66/41; B29C66/43; B29C66/47; B29C66/474; B29C66/70; B29C66/71; B29C66/712; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; B32B27/00; B32B27/06; B32B27/08; B32B27/12; B32B5/00; B32B5/02; B32B5/024; C; C09; C09J; C09J7/00; C09J7/20; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/032; H01F1/10; H01F1/11; H01F1/113; B29C65/3672; B29C65/3676; B29C65/368; B29C66/81; B29C66/818; B29C66/8181; B29C66/81811; B29K; B29K2023/00; B29K2023/10; B29K2023/12; B29K2077/00; B29K2077/10; B29K2995/00; B29K2995/0003; B29K2995/0008; B32B2405/00

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 197 words
A PROCESS FOR THERMAL FUSION BONDING FIRST AND SECOND THERMALLY BONDABLE PLASTIC BODIES FORMED OF MATERIALS EXHIBITING MUTUAL BONDING INCOMPATIBILITY, SAID METHOD COMPRISING THE STEPS OF: PROVIDING A COMPOSITE BONDING AGENT INCLUDING FIRST AND SECOND THERMOPLASTIC LAYER MEANS HAVING BONDING COMPATIBILITY WITH THE FIRST AND SECOND BODIES, RESPECTIVELY, AND BONDING INCOMPATIBILITY WITH EACH OTHER, SAID LAYER MEANS BEING AT LEAST PARTIALLY EMBEDDED IN A MEDIAL FIBROUS STRATUM OF STRANDS FOR JONDER THERETO, AT LEAST ONE OF SAID LAYER MEANS HAVING DISPERSED THEREIN A PARTICULATE SUSCEPTOR HEATABLE UPON EXPOSURE TO A SELECTED FROM OF INDIRECTLY APPLIED ENERGY, JUXTAPOSITIONING THE FIRST AND SECOND BODIES SO THAT THE PORTIONS THEREOF TO BE BONDED ARE CONTIGUOUS, APPLYING THE BONDING AGENT TO THE BODIES WITH THE FIRST AND SEOND THERMOPLASTIC LAYER MEANS ADJACENT THE BODIES WITH WHICH THEY HAVE BONDING COMPATIBILITY, EXPOSING THE COMPOSITE BONDING AGENT TO A SELECTED FORM OF INDIRECTLY APPLIED ENERGY TO HEAT SAID FIRST AND SECOND THERMOPLASTIC LAYER MEANS AND THE ADJACENT POTIONS OF THE BODIES TO HEAT SEALING TEMPERATURES, AND BRINGING SAID FIRST AND SECOND BODIES INTO ABUTMENT WITH SAID COMPOSITE BONDING AGENT TO FORM THERMAL FUSION BONDS WITH THE FIRST AND SECOND THERMOPLASTIC LAYER MEANS, RESPECTIVELY.
Claim 2
Dependent Claim 197 words
A PROCESS FOR THERMAL FUSION BONDING FIRST AND SECOND THERMALLY BONDABLE PLASTIC BODIES FORMED OF MATERIALS EXHIBITING MUTUAL BONDING INCOMPATIBILITY, SAID METHOD COMPRISING THE STEPS OF: PROVIDING A COMPOSITE BONDING AGENT INCLUDING FIRST AND SECOND THERMOPLASTIC LAYER MEANS HAVING BONDING COMPATIBILITY WITH THE FIRST AND SECOND BODIES, RESPECTIVELY, AND BONDING INCOMPATIBILITY WITH EACH OTHER, SAID LAYER MEANS BEING AT LEAST PARTIALLY EMBEDDED IN A MEDIAL FIBROUS STRATUM OF STRANDS FOR JONDER THERETO, AT LEAST ONE OF SAID LAYER MEANS HAVING DISPERSED THEREIN A PARTICULATE SUSCEPTOR HEATABLE UPON EXPOSURE TO A SELECTED FROM OF INDIRECTLY APPLIED ENERGY, JUXTAPOSITIONING THE FIRST AND SECOND BODIES SO THAT THE PORTIONS THEREOF TO BE BONDED ARE CONTIGUOUS, APPLYING THE BONDING AGENT TO THE BODIES WITH THE FIRST AND SEOND THERMOPLASTIC LAYER MEANS ADJACENT THE BODIES WITH WHICH THEY HAVE BONDING COMPATIBILITY, EXPOSING THE COMPOSITE BONDING AGENT TO A SELECTED FORM OF INDIRECTLY APPLIED ENERGY TO HEAT SAID FIRST AND SECOND THERMOPLASTIC LAYER MEANS AND THE ADJACENT POTIONS OF THE BODIES TO HEAT SEALING TEMPERATURES, AND BRINGING SAID FIRST AND SECOND BODIES INTO ABUTMENT WITH SAID COMPOSITE BONDING AGENT TO FORM THERMAL FUSION BONDS WITH THE FIRST AND SECOND THERMOPLASTIC LAYER MEANS, RESPECTIVELY.
Claim 3
Dependent Claim 33 words
The process according to claim 1 wherein the first and second bodies are juxtapositioned so that the portions thereof to be bonded are opposing and the bonding agent is inserted between the bodies.
Claim 4
Dependent Claim 36 words
The method according to claim 1 further defined, as applying pressure normal to the area of thermal fusion bonding at least subsequent to exposing the composite bonding agent to the selected form of indirectly applied energy.
Claim 5
Dependent Claim 29 words
The method according to claim 1 including the terminal step of cooling the first and second bodies and the composite bonding agent to fully form the thermal fusion bond.
Claim 6
Dependent Claim 41 words
The method according to claim 1 wherein the particulate susceptor is heatable upon exposure to an alternating magnetic field and the step of exposing the composite bonding agent is further defined as exposing the bonding agent to an alternating magnetic field.
Claim 7
Dependent Claim 28 words
The method according to claim 5 further defined as subjecting the composite bonding agent to an alternating magnetic field having a frequency of from 0.4 to 30 megahertz.
Claim 8
Dependent Claim 28 words
The method according to claim 6 further defined as subjecting the composite bonding agent to an alternating magnetic field having a frequency of from 0.4 to 6 megahertz.
Claim 9
Dependent Claim 42 words
The method according to claim 1 wherein the particulate susceptor is heatable upon exposure to an alternating electric field and the step of exposing the composite bonding agent is further defined as exposing the composite bonding agent to an alternating electric field.

References Cited (Backward Citations)

US3348640A Cited
US3528867A Cited
US3574031A Cited
US3687764A Cited
US3649438A Cited
US3646670A Cited
US3734813A Cited
US3721597A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1978-08-18 1979-02-17 1979-08-19 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1982-08-18 1983-02-17 1983-08-19 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1986-08-18 1987-02-17 1987-08-19 $7700.00 Window Closed / Lapsed

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