Patent US3238172A successfully refreshed from Google Patents.
US3238172A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internally-reinforced latex and method for making same
Assignee: Goodrich Corp
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Filing: 1960-09-12
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Granted: 1966-03-01
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Expires: 1980-09-12
Abstract
No abstract record available.
Inventors
- 👤 Talalay Leon
- 👤 Talalay Anselm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:58
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08J3/21; C08J3/215; C08J2309/00; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A METHOD FOR INTERNALLY REINFORCING BUTADIENE HYDROCARBON POLYMER PARTICLES OF AN EMULSION-POLYMERIZED BUTDIENE HYDROCARBON POLYMER SYNTHETIC LATEX IN WHICH THE POLYMER CONSTITUENT CONTAINS AT LEAST 51 PERCENT B WEIGHT OF A BOUND BUTADIENE-1,3 HYDROCARBON WHICH COMPRISES MIXING AN AQUEOUS DISPERSION OF A RESINOUS POLYMER SELECTED FROM THE GROUP CONSISTING OF RESINOUS HOMOPOLYMERS HAVING A REFRACTIVE INDEX AT 20*C. FOR THE SODIUM D LINE OF LESS THAN 1.5900 AS DETERMINED BY A.S.T.M. PROCEDURE NO. D-542 AND HAVING A SECOND ORDER TRANSITION TEMPERATURE ABOVE ROOM TEMPERATURE AND RESINOUS INTERPOLYMERS HAVING A SECOND ORDER TRANSITION TEMPERATURE ABOVE ROOM TEMPERATURE WITH THE SAID BUTADIENE HYDROCARBON POLYMER LATEX, THE EMULISIFIER PRESENT IN THE RESULTING MIXTURE OF BUTADIENE HYDROCARBON POLYMER LATEX AND RESINOUS POLYMER DISPERSION BEING INSUFFICIENT TO COMPLETELY COVER THE SURFACE AREA OF THE POLYMER PARTICLES OF THE MIXTURE, FREEZING SAID MIXTURE OF BUTADIENE HYDROCARBON POLYMER LATEX AND RESINOUS POLYMER DISPERSION TO A SOLID MASS AT A TEMPERATURE ABOVE TEMPERTURES AT WHICH THE SAID MIXTURE COAGULATES, AND RECONSTITUTING A FLUID LATEX FROM THE FROZEN MASS BY COMPLETELY THAWING THE FROZEN MASS.
Claim 2
Independent Claim
176 words
A METHOD FOR INTERNALLY REINFORCING BUTADIENE HYDROCARBON POLYMER PARTICLES OF AN EMULSION-POLYMERIZED BUTDIENE HYDROCARBON POLYMER SYNTHETIC LATEX IN WHICH THE POLYMER CONSTITUENT CONTAINS AT LEAST 51 PERCENT B WEIGHT OF A BOUND BUTADIENE-1,3 HYDROCARBON WHICH COMPRISES MIXING AN AQUEOUS DISPERSION OF A RESINOUS POLYMER SELECTED FROM THE GROUP CONSISTING OF RESINOUS HOMOPOLYMERS HAVING A REFRACTIVE INDEX AT 20*C. FOR THE SODIUM D LINE OF LESS THAN 1.5900 AS DETERMINED BY A.S.T.M. PROCEDURE NO. D-542 AND HAVING A SECOND ORDER TRANSITION TEMPERATURE ABOVE ROOM TEMPERATURE AND RESINOUS INTERPOLYMERS HAVING A SECOND ORDER TRANSITION TEMPERATURE ABOVE ROOM TEMPERATURE WITH THE SAID BUTADIENE HYDROCARBON POLYMER LATEX, THE EMULISIFIER PRESENT IN THE RESULTING MIXTURE OF BUTADIENE HYDROCARBON POLYMER LATEX AND RESINOUS POLYMER DISPERSION BEING INSUFFICIENT TO COMPLETELY COVER THE SURFACE AREA OF THE POLYMER PARTICLES OF THE MIXTURE, FREEZING SAID MIXTURE OF BUTADIENE HYDROCARBON POLYMER LATEX AND RESINOUS POLYMER DISPERSION TO A SOLID MASS AT A TEMPERATURE ABOVE TEMPERTURES AT WHICH THE SAID MIXTURE COAGULATES, AND RECONSTITUTING A FLUID LATEX FROM THE FROZEN MASS BY COMPLETELY THAWING THE FROZEN MASS.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |