US3232789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging materials comprising coated linear polyolefin films of improved heat-seal characteristics
Assignee: BRH Corp
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Filing: 1961-11-07
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Granted: 1966-02-01
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Expires: 1981-11-07
Abstract
No abstract record available.
Inventors
- 👤 Victor J Pelzek
- 👤 Eugene V Goldstein
- 👤 Miller Adolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:16
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B65; B65D; B65D23/00; C; C08; C08J; C08J7/00; C08J7/04; C08J7/0427; C08J7/043; C08J7/052; C09; C09D; C09D131/00; C09D131/02; C09D131/04; C09D133/00; C09D133/04; C09D133/06; C09D133/08; C08J2323/00; C08J2323/02; C08J2423/00; C08L; C08L23/00; C08L23/26; C08L23/28; C08L31/00; C08L31/02; C08L31/04; C08L91/00; C08L91/06; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
A HEAT-SEALABLE PACKAGING MATERIAL COMPRISING, IN COMBINATION, A THERMOPLASTIC LINEAR POLYOLEFIN FILM SUBSTRATE FORMED FROM A RESIN HAVING A VICAT SOFTENING TEMPERATURE OF AT LEAST 235*F. AND A HEAT-SEALABLE COATING IN ADHERENT RELATIONSHIP THERETO, SAID COATING COMPRISING (1) A THERMOPLASTIC FILM-FORMING POLYMERIC HEAR-SEALING RESIN CONSISTING ESSENTIALLY OF AN OLEFIN MONOMER AND AN UNSATURATED MONOMER CONTAINING A POLAR GROUP, THE MOLS OF OLEFIN MONOMER IN SAID RESIN BEING GREATER THAN THE MOLS OF UNSATURATED MONOMER CONTAINING A POLAR GROUP AND SAID RESIN BEING COMPATIBLE WITH LINEAR POLYOLEFIN FILM, AND (2) ON A 100% SOLIDS BASIS, AT LEAST ABOUT 11.7% BY WEIGHT OF AN ANTI-BLOCK AGENT COMPRISING AN OCTANE SOLUBLE COMPOUND HAVING A LONG-CHAIN SATURATED ALIPHATIC HYDROCARBON PORTION AND AN ORGANIC POLAR GROUP, SAID ANTIBLOCK AGENT BEING COMPATIBLE WITH SAID FILM-FORMING POLYMETIC HEAT-SEALING RESIN AND SHOWING ADHESION TO THE LINEAR POLYOLEFIN SUBSTRATE, SAID COATING BEING HEAT-SEALABLE AT TEMPERATURES AT LEAST 5*F. BELOW THE FILM SOFTENING TEMPERATURE OF THE LINEAR POLYOLEFIN FILM SUBSTRATE.
Claim 2
Dependent Claim
160 words
A HEAT-SEALABLE PACKAGING MATERIAL COMPRISING, IN COMBINATION, A THERMOPLASTIC LINEAR POLYOLEFIN FILM SUBSTRATE FORMED FROM A RESIN HAVING A VICAT SOFTENING TEMPERATURE OF AT LEAST 235*F. AND A HEAT-SEALABLE COATING IN ADHERENT RELATIONSHIP THERETO, SAID COATING COMPRISING (1) A THERMOPLASTIC FILM-FORMING POLYMERIC HEAR-SEALING RESIN CONSISTING ESSENTIALLY OF AN OLEFIN MONOMER AND AN UNSATURATED MONOMER CONTAINING A POLAR GROUP, THE MOLS OF OLEFIN MONOMER IN SAID RESIN BEING GREATER THAN THE MOLS OF UNSATURATED MONOMER CONTAINING A POLAR GROUP AND SAID RESIN BEING COMPATIBLE WITH LINEAR POLYOLEFIN FILM, AND (2) ON A 100% SOLIDS BASIS, AT LEAST ABOUT 11.7% BY WEIGHT OF AN ANTI-BLOCK AGENT COMPRISING AN OCTANE SOLUBLE COMPOUND HAVING A LONG-CHAIN SATURATED ALIPHATIC HYDROCARBON PORTION AND AN ORGANIC POLAR GROUP, SAID ANTIBLOCK AGENT BEING COMPATIBLE WITH SAID FILM-FORMING POLYMETIC HEAT-SEALING RESIN AND SHOWING ADHESION TO THE LINEAR POLYOLEFIN SUBSTRATE, SAID COATING BEING HEAT-SEALABLE AT TEMPERATURES AT LEAST 5*F. BELOW THE FILM SOFTENING TEMPERATURE OF THE LINEAR POLYOLEFIN FILM SUBSTRATE.
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) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |