US4230612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyether lubricants for use in the processing of plastics
Assignee: Akzona Inc
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Filing: 1979-01-11
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Granted: 1980-10-28
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Expires: 1999-01-11
Abstract
Abstract A lubricant for use in the processing of plastics is disclosed. The lubricant comprises a polyalkylene oxide made from a monomer selected from the group consisting of aliphatic, non-substituted, 1,2-alkylene oxides containing from about six to about 40 carbon atoms, and mixtures thereof, said polyalkylene oxide having an average molecular weight from about 1,000 to about 6,000. Also disclosed is a process for using such lubricants in the shaping of thermoplastic polymers.
Inventors
- 👤 Heinz Praetorius
- 👤 Karl Seibert
- 👤 Werner Holtvoigt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:55
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/02; C08G65/04; C08G65/06; C08G65/08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L71/00; C08L71/02
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
A lubricant for use in processing thermoplastic polymers comprising a block copolymer comprised of blocks of polyalkylene oxide made from a monomer selected from the group consisting of aliphatic, non-substituted, 1,2-alkylene oxides containing from about 6 to about 40 carbon atoms, and mixtures thereof, and blocks of polyethylene oxide or polypropylene oxide, or mixtures thereof, the polyalkylene oxide being present in an amount of from about 10% to about 95%, by weight, based on the total weight of the block copolymer, and the block copolymer having an average molecular weight of from about 1,500 to about 10,000.
Claim 2
Dependent Claim
97 words
A lubricant for use in processing thermoplastic polymers comprising a block copolymer comprised of blocks of polyalkylene oxide made from a monomer selected from the group consisting of aliphatic, non-substituted, 1,2-alkylene oxides containing from about 6 to about 40 carbon atoms, and mixtures thereof, and blocks of polyethylene oxide or polypropylene oxide, or mixtures thereof, the polyalkylene oxide being present in an amount of from about 10% to about 95%, by weight, based on the total weight of the block copolymer, and the block copolymer having an average molecular weight of from about 1,500 to about 10,000.
Claim 3
Dependent Claim
111 words
A composition comprising a thermoplastic polymer and from about 0.05 to about 2.0 percent, based on the weight of the polymer, of a block copolymer lubricant comprised of blocks of polyalkylene oxide made from a monomer selected from the group consisting of aliphatic, non-substituted, 1,2-alkylene oxides containing from about 6 to about 40 carbon atoms, and mixtures thereof, and blocks of polyethylene oxide or polypropylene oxide, or mixtures thereof, the polyalkylene oxide being present in an amount of from about 10% to about 95%, by weight, based on the total weight of the block copolymer, and the block copolymer having an average molecular weight of from about 1,500 to about 10,000.
Claim 4
Dependent Claim
111 words
A composition comprising a thermoplastic polymer and from about 0.05 to about 2.0 percent, based on the weight of the polymer, of a block copolymer lubricant comprised of blocks of polyalkylene oxide made from a monomer selected from the group consisting of aliphatic, non-substituted, 1,2-alkylene oxides containing from about 6 to about 40 carbon atoms, and mixtures thereof, and blocks of polyethylene oxide or polypropylene oxide, or mixtures thereof, the polyalkylene oxide being present in an amount of from about 10% to about 95%, by weight, based on the total weight of the block copolymer, and the block copolymer having an average molecular weight of from about 1,500 to about 10,000.
Claim 5
Dependent Claim
52 words
The composition of claim 2 wherein the 1,2-alkylene oxide is selected from the group consisting of 1,2-epoxyhexane; 1,2-epoxyheptane; 1,2-epoxyoctane; 1,2-epoxynonane; 1,2-epoxydecane; 1,2-epoxyundecane; 1,2-epoxydodecane; 1,2-epoxytridecane; 1,2-epoxytetradecane; 1,2-epoxypentadecane; 1,2-epoxyhexadecane; 1,2-epoxyheptadecane; 1,2-epoxyoctadecane; 1,2-epoxynonadecane; 1,2-epoxyicosane; 1,2-epoxyuniconsane; 1,2-epoxydocosane; 1,2-epoxytricosane; 1,2-epoxytetracosane; 1,2-epoxypentacosane; 1,2-epoxyhexacosane; 1,2-epoxyheptacosane; 1,2-epoxyoctacosane; 1,2-epoxynonacosane; 1,2-epoxytriacontane; 1,2-epoxyuntriacontane; 1,2-epoxydotriacontane; 1,2-epoxytritriacontane; 1,2-epoxytetratriacontane; 1,2-epoxypentatriacontane; 1,2-epoxyhexatriacontane; 1,2-epoxyheptatriacontane; 1,2-epoxyoctatriacontane; 1,2-epoxynonatriacontane; and 1,2-epoxytetracontane.
Claim 6
Dependent Claim
25 words
The composition of claim 3 wherein the thermoplastic polymer is selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, and mixed vinyl chloride polymers.
Claim 7
Dependent Claim
25 words
The composition of claim 2 wherein the thermoplastic polymer is selected from the group consisting of polyvinyl chloride, polyvinylidene chloride, and mixed vinyl chloride polymers.
Claim 8
Dependent Claim
53 words
The composition of claim 1 wherein the 1,2-alkylene oxide is selected from the group consisting of 1,2-epoxyhexane; 1,2-epoxyheptane; 1,2-epoxyoctane; 1,2-epoxynonane; 1,2-epoxydecane; 1,2-epoxyundecane; 1,2-epoxydodecane; 1,2-epoxytridecane; 1,2-epoxytetradecane; 1,2-epoxypentadecane; 1,2-epoxyhexadecane; 1,2-epoxyheptadecane; 1,2-epoxyoctadecane; 1,2-epoxynonadecane; 1,2-epoxyicosane; 1,2-epoxyunicosane; 1,2-epoxydocosane; 1,2-epoxytricosane; 1,2-epoxytetracosane; 1,2-epoxypentacosane; 1,2-epoxyhexacosane; 1,2-epoxyheptacosane; 1,2-epoxyoctacosane; ;b 1,2-epoxynonacosane; 1,2-epoxytriacontane; 1,2-epoxyuntriacontane; 1,2-epoxydotriacontane; 1,2-epoxytritriacontane; 1,2-epoxytetratriacontane; 1,2-epoxypentatriacontane; 1,2-epoxyhexatriacontane; 1,2-epoxyheptatriacontane; 1,2-epoxyoctatriacontane; 1,2-epoxynonatriacontane; and 1,2-epoxytetracontane.
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) | 1983-10-28 | 1984-04-28 | 1984-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-10-28 | 1988-04-28 | 1988-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-10-28 | 1992-04-28 | 1992-10-28 | $7700.00 | Window Closed / Lapsed |