Patent US3779918A successfully refreshed from Google Patents.
US3779918A
Expired / Lapsed
US
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Lubricant-containing polymeric synthetic resin composition
Assignee: Sumitomo Electric Industries Ltd
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Filing: 1969-05-05
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Granted: 1973-12-18
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Expires: 1989-05-05
Abstract
Abstract An oil-containing or lubricant-containing molded plastic composition comprising a lubricant adsorbent carrier having a surface area of at least 0.01 m2/g, and being selected from the group consisting of a non-fusible naturally occurring inorganic powder, a synthetic high molecular weight material, a naturally occurring high molecular weight material, and mixtures thereof in admixture with a lubricant, said carrier being blended with a base plastic material selected from the group consisting of a synthetic resin and a mixture of at least two synthetic resins is disclosed.
Inventors
- 👤 H Ikeda
- 👤 T Kawakita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:44
CPC Classifications
C; C08; C08L; C08L63/00; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L27/00; C08L27/02; C08L27/12; C08L27/18; C08L59/00; C08L77/00; C08L2205/00; C08L2205/02; C08L2205/03; C08L2205/035; C08L2312/00; C08L91/00; C08L91/06
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
29 words
The lubricant-containing molded composition of claim 1, wherein said carrier is a non-fusible inorganic powder selected from the group consisting of carbon black, activated carbon, kaolin and baked clay.
Claim 2
Dependent Claim
8 words
a synthetic high molecular weight polymeric resinous material;
Claim 3
Dependent Claim
9 words
a naturally occurring high molecular weight polymeric material; and
Claim 4
Dependent Claim
78 words
The lubricant-containing molded composition of claim 1, wherein said carrier is a synthetic high molecular weight polymeric resinous material selected from the group consisting of a thermoplastic resin selected from the group consisting of polyethylene, polypropylene, polyamide, polyacetal, polytetrafluoroethylene, polycarbonate, and polyvinylchloride, and a thermoset resin selected from the group consisting of a phenolic resin, and an epoxy resin, said thermoplastic resin being non-fusible and having a high melting viscosity at the molding temperature of said base material.
Claim 5
Dependent Claim
22 words
The lubricant-containing molded composition of claim 1, wherein said carrier is a naturally occurring high molecular weight polymeric material and is cotton.
Claim 6
Dependent Claim
27 words
mixtures thereof; and said base material being selected from the group consisting of a polymEric synthetic resin and a mixture of at least two polymeric synthetic resins.
Claim 7
Dependent Claim
49 words
The lubricant-containing molded composition of claim 1, wherein said lubricant is selected from the group consisting of a mineral oil, a synthetic lubricant, and a member selected from the group consisting of saturated and unsaturated higher fatty acids, hydroxy derivatives threof, salt and esters thereof, and acid amides thereof.
Claim 8
Dependent Claim
54 words
The lubricant-containing molded composition of claim 1, wherein said polymeric synthetic resin base material is selected from the group consisting of a thermoplastic resin selected fromthd group consisting of polyethylene, polypropylene, polyamide, polyacetal, polytetrafluoroethylene, polycarbonate, and polyvinylchloride, and a thermoset resin selected from the group consisting of a phenolic resin, and an epoxy resin.
Claim 9
Dependent Claim
13 words
The lubricant-containing molded composition of claim 1, wherein a filler is additionally present.
Claim 10
Dependent Claim
14 words
The lubricant-containing molded composition of claim 1, wherein a solid lubricant is additionally present.
Claim 11
Dependent Claim
24 words
The lubricant-containing molded composition of claim 1, wherein said carrier is a super-high molecular weight polyethylene having an average molecular weight of above 50,000.
Claim 12
Dependent Claim
49 words
The lubricant-containing molded composition of claim 1, wherein said carrier is a super-high molecular weight polyethylene having an average molecular weight of above 50,000 and wherein said base material contains additionally a member selected from the group consisting of a fibrous material, a solid filler and a solid lubricant.
Claim 13
Dependent Claim
27 words
The lubricant-containing molded composition as set forth in claim 9, wherein said super-high molecular weight polyethylene has a melting point higher than that of said base material.
Claim 14
Dependent Claim
15 words
The lubricant-containing molded composition as set forth in claim 9, wherein said polyethylene is non-fusible.
Claim 15
Dependent Claim
20 words
The lubricant-containing molded composition as set forth in claim 1, wherein at least two lubricants are used with said carrier.
Claim 16
Dependent Claim
27 words
The lubricant-containing molded composition as set forth in claim 9, wherein said super-high molecular weight polyethylene has a melt viscosity higher than that of said base material.
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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) | 1976-12-17 | 1977-06-18 | 1977-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-17 | 1981-06-18 | 1981-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-17 | 1985-06-18 | 1985-12-18 | $7700.00 | Window Closed / Lapsed |