Patent US3418599A successfully refreshed from Google Patents.
Patent US3209055A successfully refreshed from Google Patents.
US3209055A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymeric blends of vinyl chloride polymer with chlorinated or sulfochlorinated polyethylene having improved resistance to heat distortion
Assignee: EIDP Inc
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Filing: 1962-05-23
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Granted: 1965-09-28
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Expires: 1982-05-23
Abstract
No abstract record available.
Inventors
- 👤 Johan G Hedberg
- 👤 Lowell M Magner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:39
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; C08K; C08K3/00; C08K3/01; C08K3/013; C08K5/00; C08K5/0008; C08K5/005; C08K5/04; C08K5/14; C08L23/32; C08L23/34; C08L27/00; C08L27/02; C08L27/04; C08L27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A PROCESS FOR THE PREPARATION OF A POLYMERIC BLEND WHICH IS RESISTANT TO DISTORTION AT ELEVATED TEMPERATURES WHICH PROCESS COMPRISES HEATING AT FROM 160 TO 190*C. FOR AT LEAST 3 MINUTES A COMPOSITION CONTAINING (A) 55 TO 40 PARTS BY WEIGHT OF VINYL CHLORIDE POLYMER, (B) 45 TO 60 PARTS BY WEIGHT OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF CHLORINATED POLYETHYLENE CONTAINING 25 TO 50% CHLORINE AND SULFOCHLORINATED POLYETHYLENE CONTAINING 0.1-3.0% SULFUR AND 20-50% CHLORINE, WHEREIN (A) PLUS (B) TOTAL 100 PARTS, (C) 0.25 TO 1.0 PARTS BY WEIGHT OF AN ORGANIC PEROXIDE WHICH IS STABLE AT TEMEPRATURES BELOW 125*C., AND (D) 2 TO 15 PARTS BY WEIGHT OF AN ACID ACCEPTOR WHEREBY SAID COMPOSITION PARTIALLY CURES TO A POLYMERIC BLEND WHICH IS STILL MILLABLE AND MOLDABLE.
Claim 2
Dependent Claim
129 words
A PROCESS FOR THE PREPARATION OF A POLYMERIC BLEND WHICH IS RESISTANT TO DISTORTION AT ELEVATED TEMPERATURES WHICH PROCESS COMPRISES HEATING AT FROM 160 TO 190*C. FOR AT LEAST 3 MINUTES A COMPOSITION CONTAINING (A) 55 TO 40 PARTS BY WEIGHT OF VINYL CHLORIDE POLYMER, (B) 45 TO 60 PARTS BY WEIGHT OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF CHLORINATED POLYETHYLENE CONTAINING 25 TO 50% CHLORINE AND SULFOCHLORINATED POLYETHYLENE CONTAINING 0.1-3.0% SULFUR AND 20-50% CHLORINE, WHEREIN (A) PLUS (B) TOTAL 100 PARTS, (C) 0.25 TO 1.0 PARTS BY WEIGHT OF AN ORGANIC PEROXIDE WHICH IS STABLE AT TEMEPRATURES BELOW 125*C., AND (D) 2 TO 15 PARTS BY WEIGHT OF AN ACID ACCEPTOR WHEREBY SAID COMPOSITION PARTIALLY CURES TO A POLYMERIC BLEND WHICH IS STILL MILLABLE AND MOLDABLE.
References Cited (Backward Citations)
US3006889A
Cited
US2944927A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |