US3367893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of activated polyamide modified polymers
Assignee: Reichhold Chemicals Inc
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Filing: 1962-06-07
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Granted: 1968-02-06
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Expires: 1982-06-07
Abstract
No abstract record available.
Inventors
- 👤 Halbartschlager Lothar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 08:40
CPC Classifications
C; C08; C08L; C08L33/00; C08L33/02; C08L77/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A PROCESS FOR THE PREPARATION OF A MODIFIED POLYMER COMPRISING (A) A POLYMER OF AT LEAST TWO MONOMERS (1) ONE COMPRISING AT LEAST ONE MEMBER SELECTED FROM A GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS AND (2) THE OTHER CONSISTING OF AT LEAST ONE VINYL DERIVATIVE SELECTED FROM A GROUP CONSISTING OF BUTADIENE, STYRENE, VINYL ACETATE AND VINYL PROPIONATE, WHICH METHOD COMPRISES REACTING AND CROSS LINKING SAID POLYMER WITH A POLYAMIDE CONTAINING AT LEAST PARTIALLY CHAIN-LIKE STRUCTURAL ELEMENTS, SAID MODIFIED POLYMER BEING SUITABLE FOR THE MANUFACTURE OF PRODUCTS HAVING THE PROPERTIES OF ELASTICITY, COLD BREAKING RESISTANCE, HEAT RESISTANCE AND KETONE AND ESTER STABILITY, THE POLYMER BEING FIRST PARTIALLY SAPONIFIED AND THEN CROSS-LINKED WITH A NATURAL POLYAMIDE WHICH HAS BEEN SUBJECTED TO ACTIVATING TREATMENT, THE POLYAMIDE BEING ACTIVATED BY TREATMENT WITH A NITROGEN-CONTAINING BASE.
Claim 2
Dependent Claim
133 words
A PROCESS FOR THE PREPARATION OF A MODIFIED POLYMER COMPRISING (A) A POLYMER OF AT LEAST TWO MONOMERS (1) ONE COMPRISING AT LEAST ONE MEMBER SELECTED FROM A GROUP CONSISTING OF ACRYLIC AND METHACRYLIC ACIDS AND (2) THE OTHER CONSISTING OF AT LEAST ONE VINYL DERIVATIVE SELECTED FROM A GROUP CONSISTING OF BUTADIENE, STYRENE, VINYL ACETATE AND VINYL PROPIONATE, WHICH METHOD COMPRISES REACTING AND CROSS LINKING SAID POLYMER WITH A POLYAMIDE CONTAINING AT LEAST PARTIALLY CHAIN-LIKE STRUCTURAL ELEMENTS, SAID MODIFIED POLYMER BEING SUITABLE FOR THE MANUFACTURE OF PRODUCTS HAVING THE PROPERTIES OF ELASTICITY, COLD BREAKING RESISTANCE, HEAT RESISTANCE AND KETONE AND ESTER STABILITY, THE POLYMER BEING FIRST PARTIALLY SAPONIFIED AND THEN CROSS-LINKED WITH A NATURAL POLYAMIDE WHICH HAS BEEN SUBJECTED TO ACTIVATING TREATMENT, THE POLYAMIDE BEING ACTIVATED BY TREATMENT WITH A NITROGEN-CONTAINING BASE.
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) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |