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US 4,900,788 AGranted
Blow molding polyester compositions
AssigneeE. I. Du Pont de Nemours and Company
InventorPallatheri M. Subramanian
Life of this patent
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Abstract
A blow moldable composition of a polyether, an epoxide polymer, and a fibrillatable tetrafluoroethylene polymer.
Claims3
A melt blend of a mixture consisting essentially of
- (a) 70-85 parts by weight of a semicrystalline polyester;
- (b) 15-30 parts by weight of a copolymer consisting of recurring units provided by
- (1) the monomer ##STR1## wherein R is hydrogen or alkyl of 1-6 carbon atoms;
- and one or more monomers selected from the group consisting of
- (2) CH.sub.2 .dbd.CHR where R.dbd.H, lower alkyl or phenyl,
- (3) CH.sub.2 .dbd.C(RI)COOR.sup.2 where R.sup.1 .dbd.H or lower alkyl and R.sup.2 .dbd.alkyl of 1-8 carbons,
- (4) RCOOCH.dbd.CH.sub.2 where R.dbd.lower alkyl, and
- (5) CO;
- and
- (c) 0.2-3.0 parts by weight of fibrillatable polytetrafluoroethylene.
7 more elements
Dependencies are inferred from the claim text.