US4642269A
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Crystalline random propylene copolymer composition and composite laminate comprising said composition
Assignee: Mitsui Chemicals Inc
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Filing: 1985-10-29
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Granted: 1987-02-10
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Expires: 2005-10-29
Abstract
Abstract A crystalline random propylene copolymer composition comprising (i) a crystalline random propylene copolymer comprising 99 to 85 mole % of propylene and 1 to 15 mole % of an alpha-olefin other than propylene and (ii) a random 1-butene copolymer comprising 1-butene and an alpha-olefin having at least 5 carbon atoms, the weight ratio of the copolymer (i) to the copolymer (ii) being in the range of from 5:95 to 90:10, said random 1-butene copolymer (ii) satisfying the following conditions: (A) it comprises 50 to 99 mole % of the 1-butene component and 1 to 50 mole % of the alpha-olefin, (B) it has an intrinsic viscosity [ eta ], measured in decalin at 135 DEG C., of from 0.5 to 6 dl/g, (C) it has a melting point [Tm], measured by a differential scanning calorimeter, of from 30 DEG to 120 DEG C., (D) it has a crystallinity, measured by X-ray diffractometry, of from 5 to 60%, (E) the amount [W1 in % by weight] of that portion of it which is soluble in boiling methyl acetate is not more than 2%, and (F) the amount [W2 in % by weight] of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10 DEG C. is less than 5x[ eta ]-1.2.
Inventors
- 👤 Masaki Kohyama
- 👤 Takeshi Muranaka
- 👤 Kunisuke Fukui
- 👤 Norio Kashiwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:23
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/32; B32B27/06; B32B27/08; C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/14; C08L23/142; C08L23/18; C08L23/20; B32B2307/00; B32B2307/50; B32B2307/514; B32B2307/516; B32B2307/518; B32B2307/70; B32B2307/704; B32B2309/00; B32B2309/08; B32B2309/10; B32B2309/105; C08L23/12; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31855; Y10T428/31909; Y10T428/31913
Claims Analysis
Total Claims: 23
Claim 1
Independent Claim
215 words
A crystalline random propylene copolymer composition comprising (i) a crystalline random propylene copolymer comprising 99 to 85 mole % of propylene and 1 to 15 mole % of an alpha-olefin other than propylene and (ii) a random 1-butene copolymer comprising 1-butene and an alpha-olefin having at least 5 carbon atoms, the weight ratio of the copolymer (i) to the copolymer (ii) being in the range of from 5:95 to 90:10, said random 1-butene copolymer (ii) satisfying the following conditions: (A) it comprises 50 to 99 mle % of the 1-butene component and 1 to 50 mole % of the alpha-olefin, (B) it has an intrinsic viscosity [η], measured in decalin at 135° C., of from 0.5 to 6 dl/g, (C) it has a melting point [Tm], measured by a differential scanning calorimeter, of from 30° to 120° C., (D) it has a crystallinity, measured by X-ray diffractometry, of from 5 to 60%, (E) the amount [W 1 in % by weight] of that portion of it which is soluble in boiling methyl acetate is not more than 2%, and (F) the amount [W 2 in % by weight] of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10° C. is less than 5×[η] -1 .2.
Claim 2
Dependent Claim
215 words
A crystalline random propylene copolymer composition comprising (i) a crystalline random propylene copolymer comprising 99 to 85 mole % of propylene and 1 to 15 mole % of an alpha-olefin other than propylene and (ii) a random 1-butene copolymer comprising 1-butene and an alpha-olefin having at least 5 carbon atoms, the weight ratio of the copolymer (i) to the copolymer (ii) being in the range of from 5:95 to 90:10, said random 1-butene copolymer (ii) satisfying the following conditions: (A) it comprises 50 to 99 mle % of the 1-butene component and 1 to 50 mole % of the alpha-olefin, (B) it has an intrinsic viscosity [η], measured in decalin at 135° C., of from 0.5 to 6 dl/g, (C) it has a melting point [Tm], measured by a differential scanning calorimeter, of from 30° to 120° C., (D) it has a crystallinity, measured by X-ray diffractometry, of from 5 to 60%, (E) the amount [W 1 in % by weight] of that portion of it which is soluble in boiling methyl acetate is not more than 2%, and (F) the amount [W 2 in % by weight] of that portion of it which is soluble in a 1:1 by volume mixture of acetone and n-decane at 10° C. is less than 5×[η] -1 .2.
Claim 3
Dependent Claim
30 words
The composition of claim 1 wherein the 1-butene copolymer further has a stress at yield point (G), measured in accordance with JIS K-7113, of 10 to 200 kg/cm 2 .
Claim 4
Dependent Claim
30 words
The composition of claim 1 wherein the 1-butene copolymer further has a stress at break point (H), measured in accordance with JIS K-7113, of 10 to 1000 kg/cm 2 .
Claim 5
Dependent Claim
27 words
The composition of claim 1 wherein the 1-butene copolymer further has an elongation at break point (I), measured in accordance with JIS K-7113, of at least 300%.
Claim 6
Dependent Claim
28 words
The composition of claim 1 wherein the 1-butene copolymer further has a torsional rigidity (J), measured in accordance with JIS K-6745, of 100 to 2000 kg/cm 2 .
Claim 7
Dependent Claim
27 words
The composition of claim 1 wherein the 1-butene copolymer has a Young's modulus (K), measured in accordance with JIS K-7113, of 200 to 4000 kg/cm 2 .
Claim 8
Dependent Claim
34 words
The composition of claim 1 wherein the standard deviation (L) of the 1-butene content of the 1-butene copolymer is not more than 0.4a mole in which a represents the ethylene content of said copolymer.
Claim 9
Dependent Claim
18 words
The composition of claim 1 wherein the alpha-olefin in the 1-butene copolymer has 5 to 20 carbon atoms.
Claim 10
Dependent Claim
31 words
The composition of claim 1 wherein the 1-butene copolymer is composed of 60 to 98 mole % of the 1-butene component and 2 to 40 mole % of the alpha-olefin component.
Claim 11
Dependent Claim
27 words
The composition of claim 8 wherein the alpha-olefin is selected from the group consisting of 1-pentene, 1-hexene, 4-methyl-1-pentene, 3-methyl-1-pentene, 1-octene, 1-decene, 1-dodecene, 1-tetradecene, 1-hexadecene, 1-octadecene and 1-eicosene.
Claim 12
Dependent Claim
31 words
The composition of claim 1 wherein the weight ratio of the crystalline random propylene copolymer (i) to the 1-butene-type random copolymer (ii) is in the range of from 10:90 to 85:15.
Claim 13
Dependent Claim
33 words
A polypropylene composite laminate comprising a layer of the crystalline random propylene copolymer composition of claim 1 and a substrate layer of crystalline polypropylene laminated to at least one surface of said layer.
Claim 14
Dependent Claim
25 words
The laminate of claim 12 wherein the substrate layer of crystalline polypropylene is in the non-stretched state or in the monoaxially or biaxially stretched state.
Claim 15
Dependent Claim
27 words
The laminate of claim 12 wherein the layer of the crystalline random propylene copolymer is in the non-stretched state or in the monoaxially or biaxially stretched state.
Claim 16
Dependent Claim
23 words
The laminate of claim 12 wherein the layer of the crystalline random propylene copolymer composition has a thickness of 0.1 to 50 microns.
Claim 17
Dependent Claim
26 words
The laminate of claim 12 wherein the crystalline polypropylene constituting the substrate layer is selected from a crystalline homopolymer of propylene and crystalline propylene/alpha-olefin random copolymers.
Claim 18
Dependent Claim
42 words
The composition of claim 1 wherein the amount of that portion of the 1-butene-type copolymer (ii) which is soluble in a mixture of acetone and n-decane at 10° C. [(condition (F)] is 0.1×[η] -1 .2 to 5×[η] -1 .2 % by weight.
Claim 19
Dependent Claim
42 words
The composition of claim 1 wherein the amount of that portion of the 1-butene-type copolymer (ii) which is soluble in a mixture of acetone and n-decane at 10° C. [(condition (F)] is 0.2×[η] -1 .2 to 4×[η] -1 .2 % by weight.
Claim 20
Dependent Claim
42 words
The composition of claim 1 wherein the amount of that portion of the 1-butene-type copolymer (ii) which is soluble in a mixture of acetone and n-decane at 10° C. [(condition (F)] is 0.3×[η] -1 .2 to 4×[η] -1 .2 % by weight.
Claim 21
Dependent Claim
42 words
The laminate of claim 12 wherein the amount of that portion of the 1-butene-type copolymer (ii) which is soluble in a mixture of acetone and n-decane at 10° C. [(condition (F) ]is 0.1×[η] -1 .2 to 5×[η] -1 .2 % by weight.
Claim 22
Dependent Claim
42 words
The laminate of claim 11 wherein the amount of that portion of the 1-butene-type copolymer (ii) which is soluble in a mixture of acetone and n-decane at 10° C. [(condition (F)] is 0.2×[η] -1 .2 to 4×[η] -1 .2 % by weight.
Claim 23
Dependent Claim
42 words
The laminate of claim 12 wherein the amount of that portion of the 1-butene-type copolymer (ii) which is soluble in a mixture of acetone and n-decane at 10° C. [(condition (F)] is 0.3×η] -1 .2 to 4×[η] -1 .2 % by weight.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1990-02-09 | 1990-08-11 | 1991-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-02-09 | 1994-08-11 | 1995-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-02-09 | 1998-08-11 | 1999-02-10 | $7700.00 | Window Closed / Lapsed |