The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 27, 2004
Filed:
Jun. 08, 2001
Catia Bastioli, Novara, IT;
Marco Foa', Novara, IT;
Giandomenico Cella, Novara, IT;
Giovanni Floridi, Perugia, IT;
Fernanda Farachi, San Pietro Vernotico, IT;
Tiziana Milizia, Avellino, IT;
Abstract
Polyester resins formed by recurring units X=[O—(CH ) —OCO—(CH ) —CO] and/or Y=[O—(CH ) —CO], where the half-sum of n+m is equal to or greater than 6 and k is a number equal to or greater than 6, or by copolymers comprising units and/or sequences having the formula x [O—(CH ) —OCO—(CH ) —CO]; y [O—(CH ) —CO] where: i,j=1-5; n =2-22; m =0-20; k =1=21; (Formula (1)) and x and y vary between 0 and 1 and are molar fractions of the various units such that (Formula (2)), are used for the preparation of products in which a permeability to water vapour of less than 350 g×30 &mgr;m/m per day, measured at 38° C. and 90% RH and good biodegradability are required.