Patent US4051096A successfully refreshed from Google Patents.
US4051096A
Expired / Lapsed
US
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Resin composition
Assignee: Asahi Kasei Corp
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Filing: 1976-06-15
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Granted: 1977-09-27
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Expires: 1996-06-15
Abstract
Abstract This invention relates to a resin composition comprising an oil retainer, a base thermoplastic resin and an oil. The affinity of the oil retainer and base resin to the oil is defined to result in a resin composition which is excellent in moldability, lubricity and surface appearance.
Inventors
- 👤 Toshinori Koseki
- 👤 Kunio Maeda
- 👤 Michihiro Aboshi
- 👤 Haruo Kinoshita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:56
CPC Classifications
C; C08; C08L; C08L101/00; Y; Y10; Y10S; Y10S525/00; Y10S525/942
Claims Analysis
Total Claims: 26
Claim 1
Independent Claim
238 words
A stable resin composition which comprises 0.1 to 25 percent by weight of an oil retainer, 99.8 to 50 percent by weight of a base resin and 0.1 to 25 percent by weight of an oil, with the weight ratio of oil to oil retainer being from 2 to 1 to 15 to 1 the said oil being absorbed and remaining absorbed by the oil retainer; said oil retainer being a thermoplastic resin which has a lower flowing temperature than the base resin, and at normal room temperatures remains undissolved in the oil and absorbs not more than 0.03 times its own weight of oil, and which, at a temperature 10° C higher than the flowing temperature of the base resin, dissolves in the oil or absorbs not less than 0.3 times its own weight of oil; said base resin being a thermoplastic resin which remains undissolved in the oil and absorbs not more than 0.03 times its own weight of oil, and, at a temperature 10° C higher than the flowing temperature of the base resin, it absorbs not more than one half of the weight of the oil absorbed by the oil retainer and is different from the oil retainer; and said oil being a lubricating oil which is liquid at normal room temperatures or which, though solid at normal room temperatures, becomes fluidized at a temperature lower than the flowing temperature of the base resin.
Claim 2
Dependent Claim
238 words
A stable resin composition which comprises 0.1 to 25 percent by weight of an oil retainer, 99.8 to 50 percent by weight of a base resin and 0.1 to 25 percent by weight of an oil, with the weight ratio of oil to oil retainer being from 2 to 1 to 15 to 1 the said oil being absorbed and remaining absorbed by the oil retainer; said oil retainer being a thermoplastic resin which has a lower flowing temperature than the base resin, and at normal room temperatures remains undissolved in the oil and absorbs not more than 0.03 times its own weight of oil, and which, at a temperature 10° C higher than the flowing temperature of the base resin, dissolves in the oil or absorbs not less than 0.3 times its own weight of oil; said base resin being a thermoplastic resin which remains undissolved in the oil and absorbs not more than 0.03 times its own weight of oil, and, at a temperature 10° C higher than the flowing temperature of the base resin, it absorbs not more than one half of the weight of the oil absorbed by the oil retainer and is different from the oil retainer; and said oil being a lubricating oil which is liquid at normal room temperatures or which, though solid at normal room temperatures, becomes fluidized at a temperature lower than the flowing temperature of the base resin.
Claim 3
Dependent Claim
86 words
A resin composition according to claim 1, in which said base resin is at least one resin selected from the group consisting of polyacetal resin, polyamide resin, polyester resin, polycarbonate resin, polyvinyl chloride resin, polystyrene resin, acrylic resin, fluorocarbon resins, polyphenylene oxide resin, polyphenylene sulfide resin, polysulfone resin, polyaryl sulfone resin, polyaryl ether resin, polyether sulfone resin, polyvinyl formal resin, polyvinyl butyral resin, acrylonitrilestyrene copolymer, acrylonitrile-butadiene-styrene copolymer, and these resins in the form of copolymers incorporating not more than 20 mol percent of other copolymerizable monomers.
Claim 4
Dependent Claim
32 words
A resin composition according to claim 1, in which said oil retainer is at least one resin selected from the group consisting of polyethylene resin, polypropylene resin, polybutene-1resin, polymethylpentene resin and polystyrene.
Claim 5
Dependent Claim
27 words
A resin composition according to claim 1, in which said oil is selected from the group consisting of paraffin oil, naphthene oil, aromatic oil and ester oil.
Claim 6
Dependent Claim
47 words
A resin composition according to claim 1, which comprises in addition 1 to 70 percent by weight of an additive, wherein said additive is at least one member selected from the group consisting of solid lubricant, inorganic powdery filler, inorganic fibrous reinforcement, metal powder, and metal fiber.
Claim 7
Dependent Claim
42 words
A resin composition according to claim 1, which comprises at least one oil retainer selected from the group consisting of polyethylene resin, polypropylene, polybutene-1resin and polymethyl pentene resin, and an oil selected from the group consisting of paraffin oil and naphthene oil.
Claim 8
Dependent Claim
52 words
A resin composition according to claim 6, which comprises in addition at least one additive selected from the group consisting of graphite, molybdenum disulfide, polytetrafluoroethylene powder, boron nitride, graphite fluoride, talc, calcium carbonate, kaolin, glass powder, galss beads, glass microspheres, glass fiber, carbon fiber, asbestos, aluminium dust, iron dust and copper dust.
Claim 9
Dependent Claim
70 words
A resin composition according to claim 1, which comprises at least one base resin selected from the group consisting of polyacetal resin, polyamide resin, polyester resin and fluorocarbon resins and these resins in the form of copolymers incorporating not more than 20 mol percent of copolymerizable monomers, at least one oil retainer selected from the group consisting of polyethylene resin, polypropylene resin, polybutene-1,polymethylpentene resin and polystyrene, and an aromatic oil.
Claim 10
Dependent Claim
52 words
A resin composition according to claim 8, which comprises in addition at least one additive selected from the group consisting of graphite, molybdenum disulfide, polytetrafluoroethylene powder, boron nitride, graphite fluoride, talc, calcium carbonate, kaolin, glass powder, glass beads, glass microspheres, glass fiber, carbon fiber, asbestos, aluminium dust, iron dust and copper dust.
Claim 11
Dependent Claim
32 words
A resin composition according to claim 1, which comprises at least one oil retainer selected from the group consisting of polyethylene resin, polypropylene, polybutene-1resin and polymethyl pentene resin, and an ester oil.
Claim 12
Dependent Claim
52 words
A resin composition according to claim 10, which comprises in addition at least one additive selected from the group consisting of graphite, molybdenum disulfide, polytetrafluoroethylene powder, boron nitride, graphite fluoride, talc, calcium carbonate, kaolin, glass powder, glass beads, glass microspheres, glass fiber, carbon fiber, asbestos, aluminium dust, iron dust and copper dust.
Claim 13
Dependent Claim
79 words
A resin composition according to claim 1, which comprises at least one base resin selected from the group consisting of polyacetal resin, polyamide resin, polyester resin, polycarbonate resin, polyphenylene oxide resin and these resins in the form of copolymers incorporating not more than 20 mol percent of copolymerizable monomers, at least one oil retainer selected from the group consisting of polyethylene resin and polypropylene resin, and an oil selected from the group consisting of paraffin oil and naphthene oil.
Claim 14
Dependent Claim
52 words
A resin composition according to claim 12, which comprises in addition at least one additive selected from the group consisting of graphite, molybdenum disulfide, polytetrafluoroethylene powder, boron nitride, graphite fluoride, talc, calcium carbonate, kaolin, glass powder, glass beads, glass microspheres, glass fiber, carbon fiber, asbestos, aluminium dust, iron dust and copper dust.
Claim 15
Dependent Claim
67 words
A resin composition according to claim 1, which comprises at least one base resin selected from the group consisting of polyacetal resin, polyamide resin, polyester resin, polyphenylene oxide resin and these resins in the form of copolymers incorporating not more than 20 mol percent of copolymerizable monomers, at least one oil retainer selected from the group consisting of polyethylene resin and polypropylene resin, and an ester oil.
Claim 16
Dependent Claim
52 words
A resin composition according to claim 14, which comprises in addition at least one additive selected from the group consisting of graphite, molybdenum, disulfide, polytetrafluoroethylene powder, boron nitride, graphite fluoride, talc, calcium carbonate, kaolin, glass powder, glass beads, glass microspheres, glass fiber, caroon fiber, asbestos, aluminium dust, iron dust and copper dust.
Claim 17
Dependent Claim
22 words
A resin composition according to claim 1, in which the amount of said base resin is 98.5 to 70 percent by weight.
Claim 18
Dependent Claim
22 words
A resin composition according to claim 1, in which the amount of said oil retainer is 0.5 to 10 percent by weight.
Claim 19
Dependent Claim
21 words
A resin composition according to claim 1, in which the amount of said oil is 1 to 20 percent by weight.
Claim 20
Dependent Claim
22 words
A resin composition according to claim 1, in which the amount of said base resin is 96 to 80 percent by weight.
Claim 21
Dependent Claim
22 words
A resin composition according to claim 1, in which the amount of said oil retainer is 1 to 5 percent by weight.
Claim 22
Dependent Claim
21 words
A resin composition according to claim 21, in which the amount of said oil is 3 to 15 percent by weight.
Claim 23
Dependent Claim
28 words
A resin composition according to claim 1, in which the weight ratio of said oil to said oil retainer is from 12 to 1 to 3 to 1.
Claim 24
Dependent Claim
73 words
A resin composition according to claim 1, which comprises 99.5 to 55 percent by weight of a base resin selected from the group consisting of polyacetal and polyamide, 0.1 to 20 percent by weight of a polyethylene resin having a number average molecular weight of more than 10,000 but not exceeding 500,000, and 0.4 to 25 percent by weight of an oil selected from the group consisting of paraffin oil and naphthene oil.
Claim 25
Dependent Claim
87 words
A resin composition according to claim 1, which comprises 98.4 to 50 percent by weight of polyacetal, 0.1 to 10 percent by weight of a polyethylene resin having a number average molecular weight of more than 10,000 but not exceeding 500,000, 1 to 20 percent by weight of an oil selected from group consisting of paraffin oil and naphthene oil, and 0.5 to 20 percent by weight of at least one additive selected from the group consisting of graphite, molybdenum disulfide, polytetrafluoroethylene, graphite fluoride and carbon fiber.
Claim 26
Dependent Claim
23 words
A resin composition according to claim 1 in which said oil is absorbed into said oil retainer and dispersed into said base resin.
References Cited (Backward Citations)
US3201364A
Cited
US3779918A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-26 | 1981-03-28 | 1981-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-26 | 1985-03-28 | 1985-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-26 | 1989-03-28 | 1989-09-27 | $7700.00 | Window Closed / Lapsed |