US4340513A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefin resin composition
Assignee: JNC Corp
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Filing: 1980-06-03
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Granted: 1982-07-20
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Expires: 2000-06-03
Abstract
Abstract A polyolefin resin composition having superior strength, rigidity, workability, dimensional stability, etc. is provided by blending 0.3 to 4.0% by weight of at least one member selected from rosins, similar materials to rosins, derived therefrom, petroleum resins and mixtures of the foregoing members, 0.5 to 4.0% by weight of a plasticizer and 15 to 60% by weight on dry basis, of finely ground vegetable fibers to a polyolefin resins or resins, all of the above percentages being based on the weight of the composition. Further, 1 to 30% by weight of an inorganic filler and/or 1 to 10% by weight of a synthetic rubber can be blended thereto.
Inventors
- 👤 Tsutomu Moteki
- 👤 Kunihiro Yamaguchi
- 👤 Yoshikazu Nakajima
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:11
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08K; C08K5/00; C08K5/04; C08K5/09; C08K5/098; C08K7/00; C08K7/02; C08L23/04; C08L23/06; C08L23/10; C08L57/00; C08L57/02; C08L93/00; C08L93/04; C08L2207/00; C08L2207/06; C08L2207/062
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
95 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, and (4) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 2
Dependent Claim
95 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, and (4) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 3
Dependent Claim
105 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, (4) 1 to 30% by weight of an inorganic filler, and (5) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 4
Dependent Claim
105 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, (4) 1 to 30% by weight of an inorganic filler, and (5) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 5
Dependent Claim
103 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, (4) 1 to 10% of a synthetic rubber, and (5) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 6
Dependent Claim
103 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, (4) 1 to 10% of a synthetic rubber, and (5) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 7
Dependent Claim
115 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, (4) 1 to 30% by weight of an inorganic filler, (5) 1 to 10% by weight of a synthetic rubber, and (6) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 8
Dependent Claim
115 words
A molding resin composition comprising a blend of (1) 0.3 to 4.0% by weight of a member selected from the group consisting of (a) rosins and products derived from rosins, (b) petroleum resins, and (c) mixtures of (a) and (b), (2) 0.5 to 4.0% by weight of a plasticizer, (3) 15 to 60% by weight, on a dry basis, of finely ground vegetable fibers, (4) 1 to 30% by weight of an inorganic filler, (5) 1 to 10% by weight of a synthetic rubber, and (6) a blend of a polypropylene block copolymer and a high density polyethylene making up the remainder, all of the above percentages being based on the weight of said composition.
Claim 9
Dependent Claim
21 words
A composition according to claims 1-4 wherein said rosins and products derived from rosins have a softening point of 50°-130° C.
Claim 10
Dependent Claim
17 words
A composition according to claims 1-4 wherein said petroleum resins have a softening point of 60°-120° C.
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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) | 1985-07-19 | 1986-01-18 | 1986-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-19 | 1990-01-18 | 1990-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-19 | 1994-01-18 | 1994-07-20 | $7700.00 | Window Closed / Lapsed |