US4140731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin compositions having superior mechanical properties
Assignee: Resonac Holdings Corp
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Filing: 1977-08-15
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Granted: 1979-02-20
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Expires: 1997-08-15
Abstract
Abstract A resin composition having superior mechanical properties, especially high impact strength, which comprises (A) a norbornene-type polymer obtained by ring-opening polymerization of 5-cyano-bicyclo[2,2,1]heptene-2 or a mixture thereof with a small amount of a cycloolefin-type compound in the presence of an unsaturated polymer having a carbon-carbon double bond in the molecule and (B) a vinyl chloride homopolymer or copolymer.
Inventors
- 👤 Junichi Nakamura
- 👤 Takashi Ueshima
- 👤 Shigeru Kurosawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:05
CPC Classifications
C; C08; C08L; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08G; C08G61/00; C08G61/02; C08G61/04; C08G61/06; C08G61/08; C08L65/00
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
133 words
A resin composition having superior mechanical properties, including superior impact strength, without any substantial deterioration in tensile strength and hardness, said composition comprising (A) about 1 to about 95% by weight of a polymer obtained by ring-opening copolymerization of (1) about 99 to about 25 parts by weight of either (a) 5-cyano-bicyclo[2,2,1]heptene-2 or (b) a mixture of at least about 50 mole % of 5-cyano-bicyclo[2,2,1]heptene-2 and at most 50 mole % of a cycloolefin compound with (2) about 1 to about 75 parts by weight of an unsaturated polymer having at least one carbon-carbon double bond per 1,000 carbons of said unsaturated polymer; and (B) about 99 to about 5% by weight of (1) a vinyl chloride homopolymer and/or (2) a copolymer containing at least about 50 mole % of vinyl chloride units.
Claim 2
Dependent Claim
133 words
A resin composition having superior mechanical properties, including superior impact strength, without any substantial deterioration in tensile strength and hardness, said composition comprising (A) about 1 to about 95% by weight of a polymer obtained by ring-opening copolymerization of (1) about 99 to about 25 parts by weight of either (a) 5-cyano-bicyclo[2,2,1]heptene-2 or (b) a mixture of at least about 50 mole % of 5-cyano-bicyclo[2,2,1]heptene-2 and at most 50 mole % of a cycloolefin compound with (2) about 1 to about 75 parts by weight of an unsaturated polymer having at least one carbon-carbon double bond per 1,000 carbons of said unsaturated polymer; and (B) about 99 to about 5% by weight of (1) a vinyl chloride homopolymer and/or (2) a copolymer containing at least about 50 mole % of vinyl chloride units.
Claim 3
Dependent Claim
27 words
The composition of claim 1, wherein the cycloolefin compound is selected from the group consisting of monocyclic monolefin compounds, non-conjugated cyclic polyene compounds and polycyclic olefin compounds.
Claim 4
Dependent Claim
14 words
The composition of claim 1, wherein the cycloolefin compound is a polycyclic olefin compound.
Claim 5
Dependent Claim
19 words
The composition of claim 1, wherein the proportion of the cycloolefin compound is not more than 30 mole %.
Claim 6
Dependent Claim
30 words
The composition of claim 1, wherein the unsaturated polymer is selected from the group consisting of butadiene rubbery polymers, chloroprene rubbers, isoprene rubbers, natural rubbers, ethylene/propylene/diene terpolymers, and cycloolefin rubbers.
Claim 7
Dependent Claim
25 words
The composition of claim 1, wherein the unsaturated polymer is a styrene/butadiene copolymer having a butadiene content of about 50 to about 95% by weight.
Claim 8
Dependent Claim
18 words
The composition of claim 1, wherein the proportion of the unsaturated polymer is 2.0 to 50% by weight.
Claim 9
Dependent Claim
23 words
The composition of claim 1, wherein the vinyl chloride homopolymer and copolymers have a degree of polymerization of about 450 to about 1500.
Claim 10
Dependent Claim
33 words
The composition of claim 1, wherein the proportion of Component (A) is about 5 to about 75% by weight, and the proportion of Component (B) is about 95 to about 25% by weight.
Claim 11
Dependent Claim
19 words
The composition of claim 5, wherein the unsaturated polymer has a Mooney viscosity of about 10 to about 200.
Claim 12
Dependent Claim
26 words
The composition of claim 5, wherein the unsaturated polymer is a homopolymer or copolymer of butadiene having a butadiene content of more than 50% by weight.
Claim 13
Dependent Claim
44 words
The composition of claim 1, wherein the unsaturated polymer is a graft copolymer of butadiene rubbery polymers, chloroprene rubbers, isoprene rubbers, natural rubbers, ethylene/propylene/diene terpolymers or cycloolefin rubbers with a monomer selected from the group consisting of styrene, acrylonitrile, methyl methacrylate and vinyl chloride.
Claim 14
Dependent Claim
23 words
The composition of claim 1, wherein the unsaturated polymer has at least 10 carbon-carbon double bonds per 1,000 carbons of said unsaturated polymer.
Claim 15
Dependent Claim
29 words
The composition of claim 12, wherein the butadiene rubbery polymer is selected from the group consisting of butadiene homopolymer rubber, a styrene/butadiene copolymer rubber and an acrylonitrile/butadiene copolymer rubber.
Claim 16
Dependent Claim
45 words
The composition of claim 1, wherein the unsaturated polymer is selected from the group consisting of butadiene rubbery polymers, chloroprene rubbers, isoprene rubbers, natural rubbers, ethylene/propylene/diene terpolymers and cycloolefin rubbers and has at least 10 carbon-carbon double bonds per 1,000 carbons of said unsaturated polymer.
Claim 17
Dependent Claim
58 words
The composition of claim 5, wherein the unsaturated polymer is a graft copolymer of butadiene rubbery polymers, chloroprene rubbers, isoprene rubbers, natural rubbers, ethylene/propylene/diene terpolymers or cycloolefin rubbers with a monomer selected from the group consisting of styrene, acrylonitrile, methyl methacrylate and vinyl chloride, and wherein said unsaturated polymer has a Mooney viscosity of about 10 to 200.
Claim 18
Dependent Claim
23 words
The composition of claim 16, wherein the unsaturated polymer has at least 10 carbon-carbon double bonds per 1,000 carbons of said unsaturated polymer.
References Cited (Backward Citations)
US4021510A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-02-19 | 1982-08-21 | 1983-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-19 | 1986-08-21 | 1987-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-19 | 1990-08-21 | 1991-02-20 | $7700.00 | Window Closed / Lapsed |