US4943615A
Expired / Lapsed
US
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Olefin copolymer composition
Assignee: Neste Oyj
•
Filing: 1988-08-26
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Granted: 1990-07-24
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Expires: 2008-08-26
Abstract
Abstract The present invention relates to an olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of α-olefin unit with 2 to 8 carbon atoms of 1 to 35 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and a α-olefin block property of 0.015 or lower measured by the nuclear magnetic resonance spectral analysis, can provide molded items excellent, for example, in heat-sealing properties, transparency, blocking resistance, and surface gloss, and is good in processability.
Inventors
- 👤 Takashi Yamawaki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:52
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L23/14; C08L23/142; C08L23/18; C08L23/20; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
113 words
An olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of propylene unit of 1 to 35 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and a propylene block property of 0.01 or lower measured by the nuclear magnetic resonance spectral analysis.
Claim 2
Dependent Claim
113 words
An olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of propylene unit of 1 to 35 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and a propylene block property of 0.01 or lower measured by the nuclear magnetic resonance spectral analysis.
Claim 3
Dependent Claim
113 words
An olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of ethylene unit of 1 to 15 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and an ethylene block property of 0.015 or lower measured by the nuclear magnetic resonance spectral analysis.
Claim 4
Dependent Claim
113 words
An olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of ethylene unit of 1 to 15 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and an ethylene block property of 0.015 or lower measured by the nuclear magnetic resonance spectral analysis.
Claim 5
Dependent Claim
24 words
An olefin copolymer composition as claimed in claim 2, wherein the butene-I copolymer has an ethylene unit content of 1 to 15 mol %.
Claim 6
Dependent Claim
113 words
An olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of hexene-1 unit of 1 to 35 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and a hexene-1 block property of 0.005 or lower measured by the nuclear magnetic resonance spectral analysis.
Claim 7
Dependent Claim
113 words
An olefin copolymer composition, which olefin copolymer composition contains (A) 25 to 97 wt. % of a propylene copolymer, and (B) 75 to 3 wt. % of a butene-1 copolymer having a content of hexene-1 unit of 1 to 35 mol %, an intrinsic viscosity of 0.9 to 7.2 dl/g measured in decalin heated to 150° C., a value of weight-average molecular weight/number-average molecular weight of 4 to 15, a temperature difference of 2° to 40° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis, and a hexene-1 block property of 0.005 or lower measured by the nuclear magnetic resonance spectral analysis.
Claim 8
Dependent Claim
24 words
An olefin copolymer composition as claimed in claim 3, wherein the butene-1 copolymer has a hexene-1 unit content of 1 to 20 mol %.
Claim 9
Dependent Claim
25 words
An olefin copolymer composition as claimed in claim 1, 2 or 4, characterized in that said propylene copolymer is a copolymer of ethylene with propylene.
Claim 10
Dependent Claim
31 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said propylene copolymer is one having an ethylene unit content of 10 to 0.5 wt. %.
Claim 11
Dependent Claim
31 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said propylene copolymer is one having an ethylene unit content of 8 to 1 wt. %.
Claim 12
Dependent Claim
30 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said propylene copolymer is one having a melt index of 0.1 to 25 g/10 min.
Claim 13
Dependent Claim
30 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said propylene copolymer is one having a melt index of 0.5 to 20 g/10 min.
Claim 14
Dependent Claim
29 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said butene™l copolymer is one having an intrinsic viscosity of 1.0 to 4.0 dl/g.
Claim 15
Dependent Claim
33 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said butene-1 copolymer is one having a value of weight-average molecular weight/number-average molecular weight of 4 to 10.
Claim 16
Dependent Claim
48 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said butene-1 copolymer is one having a temperature difference of 5° to 30° C. between the highest value and the lowest value of the melting point measured by the differential scanning calorimetric analysis.
Claim 17
Dependent Claim
38 words
An olefin copolymer composition as claimed in claim 1, 2 or 4 characterized in that said butene-1 copolymer is one wherein the melting point heat quantity measured by the differential scanning calorimetric analysis is 2 to 25 cal/g.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-07-23 | 1994-01-22 | 1994-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-23 | 1998-01-22 | 1998-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-07-23 | 2002-01-22 | 2002-07-24 | $7700.00 | Window Closed / Lapsed |