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Jack A Hancock, Walter D Johnson, Alan D Kennedy: Annealed polyester filaments and a process for making them. E I Du Pont de Nemours and Company, November 3, 1987: US04704329 (13 worldwide citation)

A process for annealing drawn polyester filaments with saturated steam of at least about 150 psig provides products with a novel fine structure that results in an improved balance of strength, dyeability, shrinkage, crimpability and trimer in the product.


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Jack A Hancock, Walter D Johnson, Alan D Kennedy: Process of making crimped, annealed polyester filaments. E I Du Pont de Nemours and Company, January 27, 1987: US04639347 (9 worldwide citation)

A process for annealing drawn polyester filaments with saturated steam of at least about 150 psig provides products with a novel fine structure that results in an improved balance of strength, dyeability, shrinkage, crimpability and trimer in the product.


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