US3085989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for incorporating a polymercoated acidic pigment in polyethylene
Assignee: Cabot Corp
•
Filing: 1958-02-20
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Granted: 1963-04-16
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Expires: 1978-02-20
Abstract
No abstract record available.
Inventors
- 👤 Merrill E Jordan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:49
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/14; C08K9/00; C08K9/08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08K3/00; C08K3/34; C08K3/346; C08L2205/00; C08L2205/02; C08L2312/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE METHOD OF DISPERSING A FINELY DIVIDED, ACIDIC PIGMENT BODY INTO POLYETHYLENE, WHICH IS TO BE HEAT TREATED TO EFFECT THE DECOMPOSITION OF AN ORGANIC PEROXIDE CONTAINED THEREIN AND THEREBY EFFECT CROSSLINKING, WHICH ACTION IS NORMALLY INHIBITED BY THE PRESENCE OF SAID ACIDIC PIGMENT BODY, WHICH COMPRISES MILLING SAID FINELY DIVIDED ACIDIC PIGMENT BODY WITH A POLYMERIC MATERIAL WHICH DOES NOT SOFTEN AT THE MINIMUM FLUXING TEMPERATURE OF SAID POLYETHYLENE, FORMING THE MILLED MIXTURE INTO GRANULES OF LESS THAN 200 MESH IN SIZE, AND MILLING SAID GRANULES INTO SAID POLYETHYLENE.
Claim 2
Independent Claim
90 words
THE METHOD OF DISPERSING A FINELY DIVIDED, ACIDIC PIGMENT BODY INTO POLYETHYLENE, WHICH IS TO BE HEAT TREATED TO EFFECT THE DECOMPOSITION OF AN ORGANIC PEROXIDE CONTAINED THEREIN AND THEREBY EFFECT CROSSLINKING, WHICH ACTION IS NORMALLY INHIBITED BY THE PRESENCE OF SAID ACIDIC PIGMENT BODY, WHICH COMPRISES MILLING SAID FINELY DIVIDED ACIDIC PIGMENT BODY WITH A POLYMERIC MATERIAL WHICH DOES NOT SOFTEN AT THE MINIMUM FLUXING TEMPERATURE OF SAID POLYETHYLENE, FORMING THE MILLED MIXTURE INTO GRANULES OF LESS THAN 200 MESH IN SIZE, AND MILLING SAID GRANULES INTO SAID POLYETHYLENE.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-04-15 | 1966-10-15 | 1967-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-04-15 | 1970-10-15 | 1971-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-04-15 | 1974-10-15 | 1975-04-16 | $7700.00 | Window Closed / Lapsed |