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:
Jun. 17, 2003
Filed:
Jan. 09, 2001
Etienne Fleury, Irigny, FR;
Véronique Bossennec, Serezin-Du-Rhone, FR;
Jacques Dubois, Vienne, FR;
Rhodia Chimie, Boulogne Billancourt Cedex, FR;
Abstract
The invention concerns a terephthalic polyester composition (CPT), comprising in mixture: an ethyleneterephthalate homooligomer (PET 1) essentially containing recurrent terephthalate oxyethylene (TE) units; and a block terephthalate copolymer (PET 2/TE-POE) containing at least a polyethyleneterephthalate (PET 2) sequence; and at least a terephthalate polyoxyethylene (TE-POE) sequence whereof the POE unit has a molecular mass of 1500 to 4000 in number; said composition (CPT) being characterised in that: the quantity of (TE) units of (PET 1) represents not more than 10% of the total number of (TE) units present in said composition (CPT); the weight quantity of (TE) units present in the composition (CPT) represents at least 10% of (TE) units present in the composition (CPT); the quantity by weight of mono(oxyethyleneoxy) radicals (OEO) represents at least 1.3% of the weight of the composition (CPT), said radicals (OEO) belonging to the aromatic diester oxyethylene groups (ODA) of formula: —A—C(O)—O—CH2—CH2—O—C(O)—A— present in all the (PET 1) and (PET 2) sequences; and the molar mass by weight of block terephthalic copolymer (PET 2/TE-POE) is at least 30000. The invention also concerns the use of said composition as soil release agent in detergent formulations for washing textiles.