US4966933A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propylene polymer film
Assignee: Toray Industries Inc
•
Filing: 1988-12-05
•
Granted: 1990-10-30
•
Expires: 2008-12-05
Abstract
Abstract A propylene polymer film is described which is composed of a composition including 100 parts by weight of a propylene polymer, 0.01 to 0.5 parts by weight of a fine powder of a crosslinked silicone resin and 0.3 to 3.0 parts by weight of a hydroxy-fatty acid glyceride. A laminate film including a layer comprised of the above composition is also described. The film has an excellent transparency, gloss, slipperiness and adhesiveness, as well as a good adaptability to vacuum deposition.
Inventors
- 👤 Ken-Ichi Kawakami
- 👤 Masatsugi Murakami
- 👤 Kenji Takuwa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:08
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/32; B32B27/06; B32B27/08; C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L23/14; C08L23/142; B32B2255/00; B32B2255/10; B32B2255/20; B32B2255/205; B32B2307/00; B32B2307/40; B32B2307/406; B32B2307/412; B32B2323/00; B32B2323/10; B32B2553/00; C08L2312/00; C08L2312/08; C08L83/00; C08L83/04; Y; Y10; Y10S; Y10S428/00; Y10S428/91; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/1355; Y10T428/1359; Y10T428/1379; Y10T428/1383; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/25; Y10T428/259; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31678; Y10T428/31692; Y10T428/31855; Y10T428/3188; Y10T428/31884; Y10T428/31888; Y10T428/31909; Y10T428/31913; Y10T428/3192
Claims Analysis
Total Claims: 31
Claim 1
Independent Claim
17 words
A propylene polymer film composed of a composition comprising: 100 parts by weight of a propylene polymer,
Claim 2
Dependent Claim
17 words
A propylene polymer film composed of a composition comprising: 100 parts by weight of a propylene polymer,
Claim 3
Dependent Claim
43 words
01 to 0.5 parts by weight of a fine powder of a crosslinked silicone resin, wherein the average particle diameter of the fine powder is from about 1.0 to 10.0 μm, and 0.3 to 5.0 parts by weight of a hydroxy-fatty acid glyceride.
Claim 4
Dependent Claim
43 words
01 to 0.5 parts by weight of a fine powder of a crosslinked silicone resin, wherein the average particle diameter of the fine powder is from about 1.0 to 10.0 μm, and 0.3 to 5.0 parts by weight of a hydroxy-fatty acid glyceride.
Claim 5
Dependent Claim
35 words
A propylene polymer film as set forth in claim 1, wherein the propylene polymer is at least one member selected from the group consisting of an ethylene/propylene copolymer, an ethylene/propylene/butene-1 copolymer and a propylene/butene-1 copolymer.
Claim 6
Dependent Claim
66 words
A propylene polymer film comprising a laminate film including at least one layer composed of a composition comprising 100 parts by weight of a propylene polymer, 0.1 to 0.6 parts by weight of a fine powder of a crosslinked silicone resin and 0.3 to 5.0 parts by weight of a hydroxy-fatty acid glyceride, and at least one layer composed of another composition comprising a propylene polymer.
Claim 7
Dependent Claim
66 words
A propylene polymer film comprising a laminate film including at least one layer composed of a composition comprising 100 parts by weight of a propylene polymer, 0.1 to 0.6 parts by weight of a fine powder of a crosslinked silicone resin and 0.3 to 5.0 parts by weight of a hydroxy-fatty acid glyceride, and at least one layer composed of another composition comprising a propylene polymer.
Claim 8
Dependent Claim
48 words
A propylene polymer film as set forth in claim 3, wherein the propylene polymer in the composition comprising the crosslinked silicone resin powder and the hydroxy-fatty acid glyceride is at least one member selected from the group consisting of an ethylene/propylene copolymer, an ethylene/propylene/butene-1copolymer and a propylene/butene-1 copolymer.
Claim 9
Dependent Claim
116 words
A propylene polymer film having a laminate structure comprising: a layer (A) composed of a composition comprising 100 parts by weight of a propylene polymer, 0.01 to 0.5 parts by weight of a fine powder of a crosslinked silicone resin, wherein the average particle diameter of the fine powder is from about 1.0 to 10.0 μm, and 0.3 to 5.0 parts by weight of a hydroxy-fatty acid glyceride; and a layer (B) composed of a composition comprising 100 parts by weight a propylene polymer and 0.005 to 0.2 parts by weight of a fine powder of a crosslinked silicone resin, wherein the average particle diameter of the fine powder is from about 0.5 to 5.0 μm.
Claim 10
Dependent Claim
116 words
A propylene polymer film having a laminate structure comprising: a layer (A) composed of a composition comprising 100 parts by weight of a propylene polymer, 0.01 to 0.5 parts by weight of a fine powder of a crosslinked silicone resin, wherein the average particle diameter of the fine powder is from about 1.0 to 10.0 μm, and 0.3 to 5.0 parts by weight of a hydroxy-fatty acid glyceride; and a layer (B) composed of a composition comprising 100 parts by weight a propylene polymer and 0.005 to 0.2 parts by weight of a fine powder of a crosslinked silicone resin, wherein the average particle diameter of the fine powder is from about 0.5 to 5.0 μm.
Claim 11
Dependent Claim
39 words
A propylene polymer film as set forth in claim 5, wherein the propylene polymer of the layer (A) is at least one member selected from the group consisting of an ethylene/propylene copolymer, an ethylene/propylene/butene-1 copolymer and a propylene/butene-1 copolymer.
Claim 12
Dependent Claim
22 words
A propylene polymer film as set forth in claim 5, wherein the propylene polymer of the layer (B) is a propylene homopolymer.
Claim 13
Dependent Claim
51 words
A propylene polymer film as set forth in claim 5, wherein the average particle diameter of the fine powder of the crosslinked silicone resin in the layer (A) is equal to or larger than the average particle diameter of the fine powder of the crosslinked silicone resin in the layer (B).
Claim 14
Dependent Claim
55 words
A propylene polymer film as set forth in claim 8, wherein the average particle diameter of the fine powder of the crosslinked silicone resin in the layer (A) is 1.0to 10.0 μm and the average particle diameter of the fine powder of the crosslinked silicone resin in the layer (B) is 0.5 to 5.0 μm.
Claim 15
Dependent Claim
25 words
A propylene polymer film as set forth in claim 5, wherein the crosslinked silicone resin is polymethylsilsesquioxane and the hydroxy-fatty acid glyceride is glyceryl tri-12-hydroxystearate.
Claim 16
Dependent Claim
67 words
A propylene polymer film as set forth in claim 5, wherein the atomic construction ratio within 10 nm thickness of the outer surface layer on the side of the layer (B) is such that the oxygen atom number/carbon atom number ratio is in the range of from 0.10 to 0.35 and the nitrogen atom number/carbon atom number ratio is in the range of from 0.005 to 0.05.
Claim 17
Dependent Claim
29 words
A laminate film comprising a propylene polymer laminate film as set forth in claim 5 and vacuum-deposited metal layer formed on the outer surface side of the layer (B).
Claim 18
Dependent Claim
23 words
A propylene polymer film as set forth in claim 1, wherein the isotactic index (II) of the propylene polymer is at least 80.
Claim 19
Dependent Claim
37 words
A propylene polymer film as set forth in claim 1, wherein the propylene polymer is a propylene homopolymer having an isotactic index (II) of at least 95% and an intrinsic viscosity of from 1.2 to 2.5 dl/g.
Claim 20
Dependent Claim
44 words
A propylene polymer film as set forth in claim 1, wherein the fine powder of a crosslinked silicone resin is obtained by hydrolyzing and condensing a trifunctional silane in which the carbon number of each alkoxy group in the silane is 1 to 4.
Claim 21
Dependent Claim
35 words
A propylene polymer film as set forth in claim 1, wherein the hydroxy-fatty acid glyceride is a hydroxylated product of a mono-, di- or tri-glyceride of a fatty acid having 8 to 22 carbon atoms.
Claim 22
Dependent Claim
39 words
A propylene polymer film as set forth in claim 1, wherein the hydroxy-fatty acid glyceride includes a hydroxy substituent substituted for the hydrogen atom bonded to the twelfth carbon atom counted from the carbon atom of the carbonyl group.
Claim 23
Dependent Claim
18 words
A propylene polymer film as set forth in claim 1, wherein the hydroxy-fatty acid glyceride is a triglyceride.
Claim 24
Dependent Claim
18 words
A propylene polymer film as set forth in claim 1, wherein the hydroxy-fatty acid glyceride is glyceryl tri-12-hydroxystearate.
Claim 25
Dependent Claim
32 words
A propylene polymer film as set forth in claim 1, wherein the fine powder of the crosslinked silicone resin is present in an amount of from 0.02 to 0.35 parts by weight.
Claim 26
Dependent Claim
28 words
A propylene polymer film as set forth in claim 1, wherein the hydroxy-fatty acid glyceride is present in an amount of from 0.5 to 3.0 parts by weight.
Claim 27
Dependent Claim
35 words
A propylene polymer film as set forth in claim 5, wherein the hydroxy-fatty acid glyceride is a hydroxylated product of a mono-, di- or tri-glyceride of a fatty acid having 8 to 22 carbon atoms.
Claim 28
Dependent Claim
39 words
A propylene polymer film as set forth in claim 5, wherein the hydroxy-fatty acid glyceride includes a hydroxy substituent substituted for the hydrogen atom bonded to the twelfth carbon atom counted from the carbon atom of the carbonyl group.
Claim 29
Dependent Claim
18 words
A propylene polymer film as set forth in claim 5, wherein the hydroxy-fatty acid glyceride is a triglyceride.
Claim 30
Dependent Claim
42 words
A propylene polymer film as set forth in claim 5, wherein layer (B) is a base layer having a thickness of from 5 to 50 μm and layer (A) is an laminated layer having a thickness of from 0.5 to 20 μm.
Claim 31
Dependent Claim
41 words
A propylene polymer film as set forth in claim 5, wherein layer (B) is a base layer having a thickness of from 10 to °μm and layer (A) is a laminated layer having a thickness of from 1 to 10 μm.
References Cited (Backward Citations)
US4230767A
Cited
US4725466A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |