US5145930A
Expired / Lapsed
US
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Preparation of hyperbranched polyarylenes
Assignee: Bruce Technologies International Inc
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Filing: 1991-08-15
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Granted: 1992-09-08
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Expires: 2011-08-15
Abstract
Abstract Highly branched, functionalized, wholly aromatic poly(arylenes) are prepared by the polymerization of ABn-type aromatic monomers.
Inventors
- 👤 Young H. Kim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:01
CPC Classifications
C; C08; C08G; C08G83/00; C08G83/002; C08G83/005; C08G61/00; C08G61/02; C08G61/10; C08L; C08L101/00; C08L101/005
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
107 words
A process for preparing soluble hyperbranched polyarylenes comprising dissolving in a solvent an arylene monomer of the formula Ar(X) n M wherein: Ar is an (n+1) valent arylene radical containing at least one aromatic ring: X is Br, Cl or I; M is --B(OH) 2 , --MgX or --SnR 3 where R is a hydrocarbyl group containing 1 to 10 carbon atoms; and n is the number of halogen atoms in the monomer; adding a catalyst which is an organopalladium(0) compound or an organonickel(II) compound; refluxing the mixture at the solvent reflux temperature for a time sufficient to convert the monomer to polyarylene, and isolating the polyarylene.
Claim 2
Dependent Claim
107 words
A process for preparing soluble hyperbranched polyarylenes comprising dissolving in a solvent an arylene monomer of the formula Ar(X) n M wherein: Ar is an (n+1) valent arylene radical containing at least one aromatic ring: X is Br, Cl or I; M is --B(OH) 2 , --MgX or --SnR 3 where R is a hydrocarbyl group containing 1 to 10 carbon atoms; and n is the number of halogen atoms in the monomer; adding a catalyst which is an organopalladium(0) compound or an organonickel(II) compound; refluxing the mixture at the solvent reflux temperature for a time sufficient to convert the monomer to polyarylene, and isolating the polyarylene.
Claim 3
Dependent Claim
89 words
A process for preparing soluble hyperbranched polyarylenes comprising dissolving in a solvent an arylene monomer of the formula Ar(X) n M wherein: Ar is an (n+1) valent arylene radical containing at least one aromatic ring: X is Br, Cl or I; M is --Li; and n is the number of halogen atoms in the monomer; adding a catalyst which is a ferric salt or a manganic salt; refluxing the mixture at the solvent reflux temperature for a time sufficient to convert the monomer to polyarylene, and isolating the polyarylene.
Claim 4
Dependent Claim
89 words
A process for preparing soluble hyperbranched polyarylenes comprising dissolving in a solvent an arylene monomer of the formula Ar(X) n M wherein: Ar is an (n+1) valent arylene radical containing at least one aromatic ring: X is Br, Cl or I; M is --Li; and n is the number of halogen atoms in the monomer; adding a catalyst which is a ferric salt or a manganic salt; refluxing the mixture at the solvent reflux temperature for a time sufficient to convert the monomer to polyarylene, and isolating the polyarylene.
Claim 5
Dependent Claim
77 words
A process for preparing soluble hyperbranched polyarylenes comprising dissolving in a solvent an arylene monomer of the formula Ar(X) n M wherein: Ar is an (n+1) valent arylene radical containing at least one aromatic ring: X is Br, Cl or I; M is --Cu; and n is the number of halogen atoms in the monomer; refluxing the mixture at the solvent reflux temperature for a time sufficient to convert the monomer to polyarylene, and isolating the polyarylene.
Claim 6
Dependent Claim
77 words
A process for preparing soluble hyperbranched polyarylenes comprising dissolving in a solvent an arylene monomer of the formula Ar(X) n M wherein: Ar is an (n+1) valent arylene radical containing at least one aromatic ring: X is Br, Cl or I; M is --Cu; and n is the number of halogen atoms in the monomer; refluxing the mixture at the solvent reflux temperature for a time sufficient to convert the monomer to polyarylene, and isolating the polyarylene.
Claim 7
Dependent Claim
28 words
A process as in claim 2 or 3 wherein the arylene monomer of the formula Ar(X) n M contains 1-4 unfused aryl rings in which Ar is trivalent.
Claim 8
Dependent Claim
22 words
A process as in claim 4 wherein the trivalent radicals are selected from the group consisting of 1,3,5-benzenetriyl 3,5,4'-biphenyltriyl, 1,3,5-benzenetriyl-4',4"-bis(phenyl-) and 1,3,5-benezenetriyl-4,4',4"-tris(phenyl-).
Claim 9
Dependent Claim
28 words
A process as in claim 4 wherein said monomer contains at least one inert substituent selected from the group consisting of alkyl and alkoxyl, having 1-4 carbon atoms.
Claim 10
Dependent Claim
18 words
A process as in claim 1 wherein: X is Br or Cl; and M is --B(OH) 2 .
Claim 11
Dependent Claim
23 words
A process as in claim 1 wherein M is --B(OH) 2 and said M results from a boronic acid prepared from monolithium intermediates.
Claim 12
Dependent Claim
27 words
A process as in claim 1, 2 or 3 wherein the polymerization is conducted at atmospheric pressure and a temperature of about 20 to about 100° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-09-08 | 1996-03-09 | 1996-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-09-08 | 2000-03-09 | 2000-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-09-08 | 2004-03-09 | 2004-09-08 | $7700.00 | Window Closed / Lapsed |