Pet copolyesters containing succinic and naphthalenedicarboxylic

Stock material or miscellaneous articles – Hollow or container type article – Polymer or resin containing

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Other Related Categories

528272, 528298, 528300, 528302, 528307, 528308, 5283086, 428 341, 428 352, 428 98, B32B 108, C08G 6316

Type

Patent

Status

active

Patent number

055060145

Description

ABSTRACT:
Disclosed are terpolymers having improved barrier properties and tensile strength relative to PET comprising copolyesters derived from acid components comprising about 45 to about 85 mol % terephthalic acid; about 10 to about 40 mol % of at least one naphthalenedicarboxylic acid and about 5 to about 15 mol % of at least one aliphatic dicarboxylic acid having 1 to 6 carbon atoms and glycol component comprising ethylene glycol. The copolyesters of the present invention may be formed into a variety of articles such as blood tubes, serum vials, containers, films and sheeting.

REFERENCES:
patent: 4401805 (1983-08-01), Weemes et al.
patent: 5302686 (1994-04-01), Tanaka et al.
patent: 5403897 (1995-04-01), Ebato et al.
patent: 5439987 (1995-08-01), Scott et al.
Research Disclosure No. 36009, "Fabrication of Blood Tubes With Improved Shelf-life From Selected Polyesters, Copolyesters, and Polyester Blends by Injection Molding", Apr., 1994.
Research Disclosure No. 36903, "Fabrication of Blood Tubes with Improved Shelf-life from Selected Copolyesters and Terepolyesters by Injection Molding", Jan., 1995.
Research Disclosure No. 29484, "Poly(Ethylene 2,6-Naphthalene dicarboxylate) Copolyesters", Oct., 1988.

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