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US4014826A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for preparing rebonded foam structures

Assignee: EIDP Inc
•
Filing: 1975-03-13
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Granted: 1977-03-29
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Expires: 1995-03-13
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Abstract

Abstract A process of preparing rebonded structures from a composition which includes both particulate elastomeric foam and pneumacel fibers.

Inventors

  • 👤 Malak E. Yunan

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 09:49
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/33; B; B29; B29B; B29B17/00; B29B17/0026; B29C; B29C44/00; B29C44/02; B29C44/10; B29C67/00; B29C67/20; B29C67/207; C08J9/0085; B29K; B29K2105/00; B29K2105/04; C08J2375/00; C08J2375/04; Y; Y02; Y02W; Y02W30/00; Y02W30/50; Y02W30/62; Y10; Y10S; Y10S264/00; Y10S264/07

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 97 words
The process of preparing a molded cushioning structure which comprises the steps of: a. shredding or otherwise subdividing pneumacel batting into particles of substantially single-fiber dimensions, b. mixing 1-50 parts by weight of the subdivided pneumacel batting of step (a) with 99-50 parts by weight of shredded elastomeric foam, c. wetting the resulting mixture with from 5-50 parts by weight of elastomeric binder progenitor, and d. curing the mixture resulting from steps (a) through (c) under conditions which result in conversion of the progenitor into an elastomeric adhesive, thereby bonding the mixture into a unitary elastomeric structure.
Claim 2
Dependent Claim 97 words
The process of preparing a molded cushioning structure which comprises the steps of: a. shredding or otherwise subdividing pneumacel batting into particles of substantially single-fiber dimensions, b. mixing 1-50 parts by weight of the subdivided pneumacel batting of step (a) with 99-50 parts by weight of shredded elastomeric foam, c. wetting the resulting mixture with from 5-50 parts by weight of elastomeric binder progenitor, and d. curing the mixture resulting from steps (a) through (c) under conditions which result in conversion of the progenitor into an elastomeric adhesive, thereby bonding the mixture into a unitary elastomeric structure.

References Cited (Backward Citations)

US3114722A Cited
US3227664A Cited
GB997334A Cited
US3256218A Cited
US3401128A Cited
US3582500A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-03-28 1980-09-27 1981-03-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-03-28 1984-09-27 1985-03-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-03-28 1988-09-27 1989-03-29 $7700.00 Window Closed / Lapsed

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