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US3147317A
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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
- 👤 Pariser Rudolph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:11
CPC Classifications
C; C08; C08F; C08F36/00; C08F36/02; C08F36/04; C08F36/14; C08F36/16; C08L; C08L11/00; C08L2205/00; C08L2205/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A PROCESS FOR PREPARING AN EASILY-PROCESSABLE ELASTOMERIC BLEND WHICH COMPRISES: (1) PREPARING A CROSSLINKED POLYMER BY POLYMERIZING CHLOROPRENE MONOMER WITH NO MORE THAN ABOUT 10% BY WEIGHT, BASED ON TOTAL WEIGHT OF MONOMER, OF ANOTHER ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINIC COMPOUNDS AND CONJUGATED DIOLEFINIC COMPOUNDS, IN AQUEOUS EMULSION, THE RATIO R= WT OF POLYMER/WT OF POLYMER PLUS MONOMER THROUHOUT THE POLYMERIZATION HAVING AN AVERAGE VALUE, R, OF AT LEAST 0.8, AND (2) BLENDING THE CROSS-LINKED POLYMER OBTAINED FROM STEP (1) WITH A SOLID, BENZENESOLUBLE CHLOROPRENE POLYMER IN A WEIGHT BASIS RATIO BETWEEN ABOUT 1:4 AND ABOUT 4:1.
Claim 2
Dependent Claim
104 words
A PROCESS FOR PREPARING AN EASILY-PROCESSABLE ELASTOMERIC BLEND WHICH COMPRISES: (1) PREPARING A CROSSLINKED POLYMER BY POLYMERIZING CHLOROPRENE MONOMER WITH NO MORE THAN ABOUT 10% BY WEIGHT, BASED ON TOTAL WEIGHT OF MONOMER, OF ANOTHER ETHYLENICALLY UNSATURATED MONOMER COPOLYMERIZABLE THEREWITH SELECTED FROM THE GROUP CONSISTING OF MONOOLEFINIC COMPOUNDS AND CONJUGATED DIOLEFINIC COMPOUNDS, IN AQUEOUS EMULSION, THE RATIO R= WT OF POLYMER/WT OF POLYMER PLUS MONOMER THROUHOUT THE POLYMERIZATION HAVING AN AVERAGE VALUE, R, OF AT LEAST 0.8, AND (2) BLENDING THE CROSS-LINKED POLYMER OBTAINED FROM STEP (1) WITH A SOLID, BENZENESOLUBLE CHLOROPRENE POLYMER IN A WEIGHT BASIS RATIO BETWEEN ABOUT 1:4 AND ABOUT 4:1.
References Cited (Backward Citations)
US2763635A
Cited
US3042652A
Cited
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 |