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Cured or uncured linear aromatic polyester composition and process for preparation thereof

  • US 4,256,558 A
  • Filed: 10/07/1977
  • Issued: 03/17/1981
  • Est. Priority Date: 10/12/1976
  • Status: Expired due to Term
First Claim
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1. A process for preparing a cured linear aromatic polyester composition, which comprises extruding under melting conditions, an uncured linear aromatic polyester composition comprising(A) 100 parts by weight of a saturated linear aromatic polyester in which at least 70 mole % of the acid component consists of terephthalic acid and the glycol component is ethylene glycol, and(B) 0.1 to 50 parts by weight of a polyallyl compound which contains not less than 2 allyl or substituted allyl groups in the molecule, does not decompose under conditions of melt-blending with the polyester (A), and is non-reactive with the polyester (A) under conditions of melt-blending with the polyester (A), the allyl or substituted allyl groups being expressed by the following formula ##STR24## wherein R1, R2 and R3 are identical to or different from each other and represent a member selected from the group consisting of a hydrogen atoms and organic groups;

  • and subjecting the resulting extrudate to a curing treatment by the application of ultraviolet irradiation in the presence of a photo-reaction initiator.

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