Patent US3296154A successfully refreshed from Google Patents.
US3296154A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Preventing static buildup in foamable resin beads with clay
Assignee: Minerals and Chemicals Philipp Corp
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Filing: 1963-04-17
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Granted: 1967-01-03
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Expires: 1983-04-17
Abstract
No abstract record available.
Inventors
- 👤 Thomas H Ferrigno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:28
CPC Classifications
C; C08; C08J; C08J9/00; C08J9/22; C08J9/224; C08J2325/00; C08J2325/02; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/07; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A DESTATICIZED FOAMABLE COMPOSITION IN THE FORM OF FREE-FLOWING NONADHERENT BEADS COMPRISING: (A) A NORMALLY SOILD NONPOROUS STYRENE POLYMER IN BEAD FORM, SAID POLYMER (B) HAVING INCORPORATED THEREIN A VOLATILE ORGANIC COMPOUND AS A FOAMING AGENT AND (C) HAVING UNIFORMLY DEPOSITED ON THE SURFACE OF SAID BEADS AN ADHERENT COATING CONSISTING ESSENTIALLY OF PARTICLES OF CRYSTALLINE KAOLINE CLAY, THE PARTICLES OF SAID KAOLIN CLAY HAVING PREVIOUSLY BEEN COATED WITH A SMALL AMOUNT OF A NORMALLY SOLID CATIONIC NITROGEOUS SURFACE ACTIVE COMPOUND AS AN ANTISTATIC MATERIAL FOR SAID STYRENE POLYMER, SAID SURFACE ACTIVE COMPOUND CONTAINING A LONG-CHAIN HYDROCARBON RADICAL CONTAINING 8 TO 20 CARBON ATOMS AND DERIVED FROM A FATTY ACID, THE CATIONIC RADICAL OF SAID NITROGENOUS SURFACE ACTIVE COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF AMINE, AMID AND QUATERNARY AMMONIUM, SAID CATIONIC SURFACE ACTIVE COMPOUND BEING STABLE AND NONVOLATILE AT STYRENE POLYMER MOLDING AND FUSION TEMPERATURES.
Claim 2
Dependent Claim
147 words
A DESTATICIZED FOAMABLE COMPOSITION IN THE FORM OF FREE-FLOWING NONADHERENT BEADS COMPRISING: (A) A NORMALLY SOILD NONPOROUS STYRENE POLYMER IN BEAD FORM, SAID POLYMER (B) HAVING INCORPORATED THEREIN A VOLATILE ORGANIC COMPOUND AS A FOAMING AGENT AND (C) HAVING UNIFORMLY DEPOSITED ON THE SURFACE OF SAID BEADS AN ADHERENT COATING CONSISTING ESSENTIALLY OF PARTICLES OF CRYSTALLINE KAOLINE CLAY, THE PARTICLES OF SAID KAOLIN CLAY HAVING PREVIOUSLY BEEN COATED WITH A SMALL AMOUNT OF A NORMALLY SOLID CATIONIC NITROGEOUS SURFACE ACTIVE COMPOUND AS AN ANTISTATIC MATERIAL FOR SAID STYRENE POLYMER, SAID SURFACE ACTIVE COMPOUND CONTAINING A LONG-CHAIN HYDROCARBON RADICAL CONTAINING 8 TO 20 CARBON ATOMS AND DERIVED FROM A FATTY ACID, THE CATIONIC RADICAL OF SAID NITROGENOUS SURFACE ACTIVE COMPOUND BEING SELECTED FROM THE GROUP CONSISTING OF AMINE, AMID AND QUATERNARY AMMONIUM, SAID CATIONIC SURFACE ACTIVE COMPOUND BEING STABLE AND NONVOLATILE AT STYRENE POLYMER MOLDING AND FUSION TEMPERATURES.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |