US 5,210,213 A · Dimensional, crosslinkable oligomers

Abstract

Multidimensional oligomers of the present invention are surprisingly useful for advanced composites because each generally has a use temperature greatly in excess of its curing temperature. The oligomers have essentially no arms, and comprise crosslinking phenylimide end caps condensed directly onto an aromatic hub (preferably, phenyl) through "commodity" polymeric linkages, such as amide, diimide, ether, or ester. For example, p-nadicimidobenzoylchloride can be condensed with triaminobenzene to yield a multidimensional, crosslinking amide oligomer. Short chains of ether/carbonyl aromatic chains can be included, if desired. Methods for making these high-performance oligomers with ether/carbonyl aromatic chains use an Ullmann ether synthesis followed by a Friedel Craft reaction.

Claims12

Dependent claims

An oligomer of the formula:

##STR20## wherein w=an integer greater than 2 and not greater than the available number of replaceable hydrogens on the phenyl group;
.0.=phenyl;
P=--NHCO--, OCNH--, --O--, --COO--, or --OOC--;
##STR21## R.sub.1 =any of lower alkyl, lower alkoxy, or aryl;
j=0, 1, or 2;
G=--CH.sub.2 --, --S--, --O--, or --SO.sub.2 --;
and
E=allyl or methallyl.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

07/000,605Filed 5 Jan 1987 · continuation in part

Priority

13 Nov 1981

Granted

11 May 1993

Term ends

Not estimatedThe source records don’t support an estimate.

Classification38 codes

C07D 209/48
Iso-indoles; Hydrogenated iso-indoles: with oxygen atoms in positions 1 and 3, e.g. phthalimide
C07C 67/14
Preparation of carboxylic acid esters: from carboxylic acid halides
C07D 209/76
4,7-Endo-alkylene-iso-indoles: with oxygen atoms in positions 1 and 3
C07D 401/14
Heterocyclic compounds containing two or more hetero rings, having nitrogen atoms as the only ring hetero atoms, at least one ring being a…:…

Family

Serial321,119Parent of this continuation-in-part · filed 13 Nov 1981

Serial505,348Parent of this continuation-in-part · filed 17 Jun 1983

Serial519,394Parent of this continuation-in-part · filed 1 Aug 1983

Serial536,350Parent of this continuation-in-part · filed 27 Sep 1983

Serial576,790Parent of this continuation-in-part · filed 6 Feb 1984

Serial651,826Parent of this continuation-in-part · filed 18 Sep 1984

Serial673,229Parent of this continuation-in-part · filed 20 Nov 1984

Serial726,258Parent of this continuation-in-part · filed 23 Apr 1985

Serial810,817Parent of this continuation-in-part · filed 17 Dec 1985

US 4,584,364 AParent of this continuation-in-part · filed 22 Apr 1986

US 4,536,559 AParent of this continuation-in-part

Serial576,790Parent of this continuation

US 5,210,213 AThis patent

From the US filing history. Foreign family members aren’t listed.

Dimensional, crosslinkable oligomers

Life of this patent

Dimensional, crosslinkable oligomers

Life of this patent

Abstract

Claims12