← Back to Patent Explorer
US4746708A Expired / Lapsed US ⏱️ 0.0 years remaining

Hydroxyalkyl- and aminoalkyl-functionalized polyphenylene ethers

Assignee: General Electric Co
•
Filing: 1986-08-29
•
Granted: 1988-05-24
•
Expires: 2006-08-29
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Hydroxyalkyl- and aminoalkyl-functionalized polyphenylene ethers are prepared by the reaction of polyphenylene ethers with bis-hydroxyalkyl maleates or fumarates, or with the corresponding acids or anhydrides, terephthaloyl chloride or the like followed by esterification or imidization with diols, diamines or amino alcohols. They are useful in the preparation of polyphenylene ether copolymers, which in turn are useful for the compatibilization of blends of polyphenylene ethers with linear polyesters.

Inventors

  • 👤 Paul D. Sybert

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 03:42
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48; C08G65/485; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/4009; C08G18/4018; C08G63/00; C08G63/66; C08G81/00; C08L; C08L67/00; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/126

Claims Analysis

Total Claims: 19
Claim 1
Independent Claim 66 words
A functionalized polyphenylene ether containing at least one moiety having the formula ##STR11## wherein R 1 is a polyvalent bridging radical containing at least one hydrocarbon group, each Y is OR 2 --XH or two adjacent Y's taken together are NR 2 --XH, R 2 is a lower alkylene, cycloalkylene or arylene radical, X is O or NH and m is from 1 to about 10.
Claim 2
Dependent Claim 66 words
A functionalized polyphenylene ether containing at least one moiety having the formula ##STR11## wherein R 1 is a polyvalent bridging radical containing at least one hydrocarbon group, each Y is OR 2 --XH or two adjacent Y's taken together are NR 2 --XH, R 2 is a lower alkylene, cycloalkylene or arylene radical, X is O or NH and m is from 1 to about 10.
Claim 3
Dependent Claim 83 words
A composition according to claim 1 which is derived from a polyphenylene ether comprising a plurality of structural units having the formula ##STR12## and in each of said units independently, each Q 1 is independently halogen, primary or secondary lower alkyl, phenyl, haloalkyl, aminoalkyl, hydrocarbonoxy, or halohydrocarbonoxy wherein at least two carbon atoms separate the halogen and oxygen atoms; and each Q 2 is independently hydrogen, halogen, primary or secondary lower alkyl, phenyl, haloalkyl, hydrocarbonoxy or halohydrocarbonoxy as defined for Q 1 .
Claim 4
Dependent Claim 22 words
A composition according to claim 2 wherein an average of about 1-5 moieties of formula I are present per polyphenylene ether molecule.
Claim 5
Dependent Claim 15 words
A composition according to claim 3 wherein R 1 is C 2-6 straight chain alkylene.
Claim 6
Dependent Claim 21 words
A composition according to claim 3 wherein said moiety has the formula ##STR13## wherein p is from 1 to about 5.
Claim 7
Dependent Claim 14 words
A composition according to claim 5 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 8
Dependent Claim 13 words
A composition according to claim 6 wherein each Y is OR 2 --XH.
Claim 9
Dependent Claim 10 words
A composition according to claim 7 wherein X is O.
Claim 10
Dependent Claim 10 words
A composition according to claim 7 wherein X is NH.
Claim 11
Dependent Claim 15 words
A composition according to claim 6 wherein both Y's taken together are NR 2 --XH.
Claim 12
Dependent Claim 10 words
A composition according to claim 10 wherein X is O.
Claim 13
Dependent Claim 10 words
A composition according to claim 10 wherein X is NH.
Claim 14
Dependent Claim 29 words
A composition according to claim 3 wherein said moiety has the formula ##STR14## wherein R 5 is an aromatic or saturated aliphatic radical and q is 1 or 2.
Claim 15
Dependent Claim 15 words
A composition according to claim 13 wherein R 5 is p-phenylene and q is 1.
Claim 16
Dependent Claim 14 words
A composition according to claim 14 wherein the polyphenylene ether is a poly(2,6-dimethyl-1,4-phenylene ether).
Claim 17
Dependent Claim 12 words
A composition according to claim 15 wherein Y is OR 2 --XH.
Claim 18
Dependent Claim 10 words
A composition according to claim 16 wherein X is O.
Claim 19
Dependent Claim 10 words
A composition according to claim 16 wherein X is NH.

References Cited (Backward Citations)

US4315086A Cited
US4681915A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1991-05-24 1991-11-23 1992-05-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1995-05-24 1995-11-23 1996-05-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1999-05-24 1999-11-23 2000-05-24 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag