Patent US3147318A successfully refreshed from Google Patents.
US3147318A
Expired / Lapsed
US
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Method of preparing elastomeric blend of benzene-soluble chloroprene polymer and a cross-linked chloroprene polymer
Assignee: EIDP Inc
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Filing: 1962-04-17
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Granted: 1964-09-01
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Expires: 1982-04-17
Abstract
No abstract record available.
Inventors
- 👤 Jungk Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:51
CPC Classifications
C; C08; C08L; C08L11/00; C08K; C08K5/00; C08K5/04; C08K5/14; C08L11/02; C08L2205/00; C08L2205/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR PREPARING AN EASILY-PROCESSABLE ELASTOMERIC BLEND WHICH COMPRISES: (1) PREPARING A CROSSLINKED POLYMER OF CHLOROPRENE BY (A) POLYMERIZING CHLOROPRENE MONOMER WITH NO MORE THAN 10% BY WEIGHT, BASED ON TOTAL WEIGHT OF MONOMER, OF ANOTHER ETHYLENEICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINIC COMPOUNDS AND CONJUGATED DIOLEFINIC COMPOUNDS, IN AQUEOUS EMULSION TO PRODUCE A POLYMER IN LATEX FORM, (B) CROSSLINKING SAID POLYMER LATEX BY REACTION AT A TEMPERATURE BETWEEN 30* AND 100*C. WITH AN ORGANIC PEROXY COMPOUND AND A REDUCING AGENT, THE MAXIMUM INTRINSIC VISCOSITY (I.V.) OF SAID CROSS-LINKED POLYMER LATEX BEING EXPRESSEDN ACCORDING TO THE FORMULA:
Claim 2
Dependent Claim
103 words
A PROCESS FOR PREPARING AN EASILY-PROCESSABLE ELASTOMERIC BLEND WHICH COMPRISES: (1) PREPARING A CROSSLINKED POLYMER OF CHLOROPRENE BY (A) POLYMERIZING CHLOROPRENE MONOMER WITH NO MORE THAN 10% BY WEIGHT, BASED ON TOTAL WEIGHT OF MONOMER, OF ANOTHER ETHYLENEICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINIC COMPOUNDS AND CONJUGATED DIOLEFINIC COMPOUNDS, IN AQUEOUS EMULSION TO PRODUCE A POLYMER IN LATEX FORM, (B) CROSSLINKING SAID POLYMER LATEX BY REACTION AT A TEMPERATURE BETWEEN 30* AND 100*C. WITH AN ORGANIC PEROXY COMPOUND AND A REDUCING AGENT, THE MAXIMUM INTRINSIC VISCOSITY (I.V.) OF SAID CROSS-LINKED POLYMER LATEX BEING EXPRESSEDN ACCORDING TO THE FORMULA:
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |