Method for making multidimensional polyester oligomers

Details Method for making multidimensional polyester oligomers Method for making multidimensional polyester oligomers

1995-06-05

1998-04-14

Lovering, Richard D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

25218311, 528170, 528183, 428482, C08G 7520, C08G 63688, C08G 7310

Patent

active

057392560

ABSTRACT:
High performance polyester sulfone oligomers are prepared for aerospace applications by condensing mono- or difunctional crosslinkable end caps (i.e. unsaturated hydrocarbons having one or two crosslinking sites) with dicarboxylic acid halides and dialcohols (i.e. diols). Multidimensional oligomers have an aromatic hub from which the polyester chains radiate. Blends of the linear and multidimensional oligomers can be made using compatible, non-crosslinking polymers. Prepregs and composites are formed from the oligomers or blends.

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