US5204038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for forming polymers
Assignee: CALIFORNIA A CORP OF CALIFORNIA, University of, Regents of
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Filing: 1990-12-27
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Granted: 1993-04-20
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Expires: 2010-12-27
Abstract
Abstract Oriented conjugated polymer shaped articles can be formed by the process of (a) providing a carrier solution made up of (i) carrier solvent, (ii) nonconjugated flexible chain carrier polymer, and (iii) conjugated polymer or conjugated polymer precursor; (b) forming this carrier solution, before or after gelling the solution and removing solvent from it, thereby yielding a body having a first shape, and (c) anisotropically physically distorting the first shape of the body to yield the desired shaped article formed with an oriented structure in the carrier polymer and in the conjugated polymer. The orientation of the conjugated polymer leads to anisotropic absorption and photoluminescence properties for the shaped article.
Inventors
- 👤 Alan J. Heeger
- 👤 Paul Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:15
CPC Classifications
D; D01; D01F; D01F6/00; D01F6/44; D01F6/46; B; B29; B29C; B29C55/00; B29C55/005; C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; H; H01; H01B; H01B1/00; H01B1/06; H01B1/12; H01B1/124; H01B1/127; H01B1/128; B29K; B29K2105/00; B29K2105/0088; B29K2995/00; B29K2995/0003; B29K2995/0005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
94 words
A process for forming an oriented conjugated polymer-containing shaped article comprising the steps of (a) providing a carrier solution comprising (i) carrier solvent, (ii) nonconjugated flexible-chain carrier polymer and (iii) conjugated polymer or conjugated polymer precursor; (b) gelling and forming said carrier solution and removing solvent therefrom thereby yielding a body having a first shape; and (c) anisotropically distorting the first shape of the body to yield the oriented conjugated polymer-containing shaped article characterized by having both nonconjugated flexible chain polymer and conjugated polymer is oriented form and by exhibiting anisotropic absorption and photoluminescence.
Claim 2
Dependent Claim
94 words
A process for forming an oriented conjugated polymer-containing shaped article comprising the steps of (a) providing a carrier solution comprising (i) carrier solvent, (ii) nonconjugated flexible-chain carrier polymer and (iii) conjugated polymer or conjugated polymer precursor; (b) gelling and forming said carrier solution and removing solvent therefrom thereby yielding a body having a first shape; and (c) anisotropically distorting the first shape of the body to yield the oriented conjugated polymer-containing shaped article characterized by having both nonconjugated flexible chain polymer and conjugated polymer is oriented form and by exhibiting anisotropic absorption and photoluminescence.
Claim 3
Dependent Claim
15 words
The process of claim 1 wherein in (c) the anisotropically distorting is accomplished by drawing.
Claim 4
Dependent Claim
16 words
The process of claim 2 wherein the drawing is to a draw ratio greater than 30.
Claim 5
Dependent Claim
16 words
The process of claim 2 wherein the drawing is to a draw ratio greater than 50.
Claim 6
Dependent Claim
46 words
The process of claim 1 wherein the carrier solution comprises (i) carrier solvent, (ii) from about 0.2% to about 60% by weight, basis solvent, of carrier polymer, and (iii) from about 0.2% to about 90% by weight, basis carrier polymer plus conjugated polymer, of conjugated polymer.
Claim 7
Dependent Claim
46 words
The process of claim 1 wherein the carrier solution comprises (i) carrier solvent, (ii) from about 0.2% to about 10% by weight, basis solvent, of carrier polymer, and (iii) from about 0.5% to about 25% by weight, basis carrier polymer plus conjugated polymer, of conjugated polymer.
Claim 8
Dependent Claim
13 words
The process of claim 1 wherein in step (b) gelling occurs before forming.
Claim 9
Dependent Claim
13 words
The process of claim 1 wherein in step (b) gelling occurs after forming.
Claim 10
Dependent Claim
14 words
The process of claim 1 wherein the carrier polymer is ultra-high molecular weight polyethylene.
Claim 11
Dependent Claim
11 words
The process of claim 9 wherein the conjugated polymer is MEH-PPV.
Claim 12
Dependent Claim
12 words
The process of claim 9 wherein the conjugated polymer is a poly(3-alkylthiophene).
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) | 1996-04-19 | 1996-10-19 | 1997-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-04-19 | 2000-10-19 | 2001-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-04-19 | 2004-10-19 | 2005-04-20 | $7700.00 | Window Closed / Lapsed |