Patent US4246150A successfully refreshed from Google Patents.
US4246150A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lubricant for heat processing of vinyl chloride resins
Assignee: CNA Holdings LLC
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Filing: 1979-09-17
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Granted: 1981-01-20
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Expires: 1999-09-17
Abstract
Abstract A lubricant composition useful as a heat processing aid for vinyl chloride resin compositions is disclosed. The lubricant composition comprises a mixture of about 5 to 95% by weight of an ethylene polymer wax having an average molecular weight in the range of about 1,000 to 10,000, about 5 to 20% by weight of a waxy oxygen-containing ethylene polymer having an acid number in the range of about 10 to 150, and about 0 to 90% by weight of a paraffin wax. The lubricant composition is most effective when blended with the vinyl chloride resin composition at levels within the range of about 0.5 to 3.0 parts per 100 parts resin.
Inventors
- 👤 J. David Bower
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:11
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L91/00; C08L91/06; C08L91/08; C08L23/00; C08L23/02; C08L23/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
78 words
A lubricant composition comprising a mixture of: (a) 5 to 95% by weight of a waxy ethylene polymer having an average molecular weight in the range of about 1,000 to 10,000; (b) 5 to 20% by weight of a waxy oxygen-containing ethylene polymer having an acid number in the range of about 10 to 150 and an average molecular weight in the range of about 1,000 to 10,000; and (c) 0 to 90% by weight of paraffin wax.
Claim 2
Dependent Claim
78 words
A lubricant composition comprising a mixture of: (a) 5 to 95% by weight of a waxy ethylene polymer having an average molecular weight in the range of about 1,000 to 10,000; (b) 5 to 20% by weight of a waxy oxygen-containing ethylene polymer having an acid number in the range of about 10 to 150 and an average molecular weight in the range of about 1,000 to 10,000; and (c) 0 to 90% by weight of paraffin wax.
Claim 3
Dependent Claim
13 words
The composition of claim 1 containing at least 5% by weight paraffin wax.
Claim 4
Dependent Claim
25 words
The composition of claim 1 wherein the waxy ethylene polymer is polyethylene, having an average molecular weight in the range of about 1500 to 5000.
Claim 5
Dependent Claim
26 words
The composition of claim 3 wherein the waxy oxygen-containing ethylene polymer is oxidized polyethylene having an acid number in the range of about 15 to 50.
Claim 6
Dependent Claim
15 words
The composition of claim 4 containing from about 45 to 85% by weight paraffin wax.
Claim 7
Dependent Claim
15 words
The composition of claim 5 containing from about 5 to 45% by weight polyethylene wax.
Claim 8
Dependent Claim
33 words
A vinyl chloride resin composition comprising an intimate mixture of vinyl chloride resin and about 0.5 to 3 parts of the lubricant composition of claim 1 per 100 parts of vinyl chloride resin.
Claim 9
Dependent Claim
33 words
A vinyl chloride resin composition comprising an intimate mixture of vinyl chloride resin and about 0.5 to 3 parts of the lubricant composition of claim 4 per 100 parts of vinyl chloride resin.
Claim 10
Dependent Claim
103 words
A vinyl chloride resin composition comprising an intimate mixture of vinyl chloride resin and from about 0.5 to 3 parts per hundred parts of vinyl chloride resin of a lubricant composition consisting essentially of: (a) 5 to 90% by weight of a polyethylene wax having an average molecular weight in the range of about 1500 to 5000, (b) 5 to 20% by weight of an oxidized polyethylene wax having an acid number in the range of about 15 to 50 and an average molecular weight in the range of about 2000 to 7000, and (c) 5 to 90% by weight of paraffin wax.
Claim 11
Dependent Claim
103 words
A vinyl chloride resin composition comprising an intimate mixture of vinyl chloride resin and from about 0.5 to 3 parts per hundred parts of vinyl chloride resin of a lubricant composition consisting essentially of: (a) 5 to 90% by weight of a polyethylene wax having an average molecular weight in the range of about 1500 to 5000, (b) 5 to 20% by weight of an oxidized polyethylene wax having an acid number in the range of about 15 to 50 and an average molecular weight in the range of about 2000 to 7000, and (c) 5 to 90% by weight of paraffin wax.
Claim 12
Dependent Claim
45 words
A method for heat processing a vinyl chloride resin comprising forming an intimate mixture of a vinyl chloride resin composition and about 0.5 to 3 parts of the lubricant of claim 1, and forming the mixture under heat and pressure to produce a shaped product.
Claim 13
Dependent Claim
10 words
The method of claim 10 wherein said forming is extrusion.
References Cited (Backward Citations)
US2541987A
Cited
US3442837A
Cited
US3756990A
Cited
US3780140A
Cited
US3979347A
Cited
US4002706A
Cited
US4132691A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-01-20 | 1984-07-21 | 1985-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-20 | 1988-07-21 | 1989-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-20 | 1992-07-21 | 1993-01-20 | $7700.00 | Window Closed / Lapsed |