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US 6,150,475 AGranted
Polyester resins having improved properties
AssigneeSinco Engineering S.p.A.
InventorsHussain Al Ghatta, Sandro Cobror
Life of this patent
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Abstract
Aromatic polyester resins, having improved mechanical and hydrolysis resistant properties, by mixing said aromatic polyester resin with a phenoxy resin, a dianhydride of a tetracarboxylic acid and liquid crystals.
Claims1
A composition comprising:
- an aromatic polyester resin mixed with
- a) from 0.5 to 30% by weight of polymeric liquid crystal;
- b) from 0.05 to 2% by weight of a dianhydride of a tetracarboxylic acid;
- and
- c) from 0.05% to 5% by weight of a phenoxy resin selected from the group consisting of poly(hydroxy)ethers, poly(hydroxy)ethers-esters, poly(hydroxy)amino-ethers,
- subjected to a solid state polyaddition treatment.
3 more elements
Dependencies are inferred from the claim text.