US5089318A
Expired / Lapsed
US
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Iridescent film with thermoplastic elastomeric components
Assignee: BASF Catalysts LLC
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Filing: 1989-10-31
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Granted: 1992-02-18
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Expires: 2009-10-31
Abstract
Abstract Improvements in multilayer light reflecting film are effected by the use of a thermoplastic elastomer resin in a system in which two or more resinous materials form a plurality of the layers.
Inventors
- 👤 Ramakrishna S. Shetty
- 👤 Scott A. Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:48
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B7/00; B32B7/02; B32B7/023; B32B27/36; B44; B44F; B44F1/00; B44F1/02; B44F1/04; B44F1/08; B44F1/14; G; G02; G02B; G02B5/00; G02B5/08; G02B5/0816; G02B5/0825; G02B5/0841; B32B2250/00; B32B2250/05; B32B2307/00; B32B2307/40; B32B2307/412; B32B2367/00; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24942; Y10T428/2495; Y10T428/24967; Y10T428/24975; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2964; Y10T428/31504; Y10T428/31721; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
53 words
A transparent thermoplastic resinous laminate film of at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials of which one is a thermoplastic elastomer, the contiguous adjacent layers differing in refractive index by at least about 0.03.
Claim 2
Dependent Claim
53 words
A transparent thermoplastic resinous laminate film of at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials of which one is a thermoplastic elastomer, the contiguous adjacent layers differing in refractive index by at least about 0.03.
Claim 3
Dependent Claim
27 words
The transparent thermoplastic laminate film of claim 1 wherein the outermost layers of the film are each at least 5% of the total thickness of the film.
Claim 4
Dependent Claim
14 words
The transparent thermoplastic resinous laminate film of claim 1 having at least 35 layers.
Claim 5
Dependent Claim
15 words
The transparent thermoplastic resinous laminate film of claim 3 having at least about 70 layers.
Claim 6
Dependent Claim
26 words
The transparent thermoplastic resinous laminate film of claim 4 wherein said adjacent resinous material has a refractive index which is lower by at least about 0.06.
Claim 7
Dependent Claim
16 words
The transparent thermoplastic resinous film of claim 1 wherein at least one layer is polybutylene terephthalate.
Claim 8
Dependent Claim
24 words
The transparent thermoplastic resinous laminate film of claim 6 wherein the thermoplastic elastomer is a segmented block copolymer of polybutylene terephthalate and polyester glycol.
Claim 9
Dependent Claim
24 words
The transparent thermoplastic resinous laminate film of claim 6 wherein the thermoplastic elastomer is a segmented block copolymer of polybutylene terephthalate and polyether imide.
Claim 10
Dependent Claim
17 words
The transparent thermoplastic resinous laminate film of claim 6 having at least 70 substantially uniformly thick layers.
Claim 11
Dependent Claim
17 words
The transparent thermoplastic resinous laminate film of claim 1 wherein at least one layer is polyethylene terephthalate.
Claim 12
Dependent Claim
24 words
The transparent thermoplastic resinous laminate film of claim 10 wherein the thermoplastic elastomer is a segmented block copolymer of polyethylene terephthalate and polyether glycol.
Claim 13
Dependent Claim
26 words
The transparent thermoplastic resinous laminate film of claim 10 wherein the outermost layer resin is a glycol modified polyethylene terephthalate made from ethylene glycol and cyclohexanedimethanol.
Claim 14
Dependent Claim
17 words
The transparent thermoplastic resinous laminate film of claim 10 having at least 70 substantially uniformly thick layers.
Claim 15
Dependent Claim
71 words
A transparent thermoplastic resinous laminate film of at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials, the contiguous adjacent layers differing in refractive index by at least about 0.03 wherein each of the different transparent thermoplastic resinous materials is a segmented block copolymer of a terephthalate polymer and a polyester glycol or polyether imide.
Claim 16
Dependent Claim
71 words
A transparent thermoplastic resinous laminate film of at least 10 very thin layers of substantially uniform thickness, said layers being generally parallel, the contiguous adjacent layers being of different transparent thermoplastic resinous materials, the contiguous adjacent layers differing in refractive index by at least about 0.03 wherein each of the different transparent thermoplastic resinous materials is a segmented block copolymer of a terephthalate polymer and a polyester glycol or polyether imide.
Claim 17
Dependent Claim
23 words
The transparent thermoplastic resinous laminate film of claim 14 wherein both thermoplastic elastomers are segmented block copolymers of polybutylene terephthalate and polyether glycol.
Claim 18
Dependent Claim
17 words
The transparent thermoplastic resinous laminate film of claim 14 having at least 70 substantially uniformly thick layers.
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) | 1995-02-17 | 1995-08-19 | 1996-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-17 | 1999-08-19 | 2000-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-17 | 2003-08-19 | 2004-02-18 | $7700.00 | Window Closed / Lapsed |