Global Patent Index - EP 1097190 A1

EP 1097190 A1 2001-05-09 - TEREPHTHALIC POLYESTER COMPOSITION AND ITS USE AS SOIL RELEASE AGENT

Title (en)

TEREPHTHALIC POLYESTER COMPOSITION AND ITS USE AS SOIL RELEASE AGENT

Title (de)

TEREPHTHALSÄURE-POLYESTERZUSAMMENSETZUNG UND IHRE VERWENDUNG ALS SCHMUTZABWEISENDES MITTEL

Title (fr)

COMPOSITION POLYESTER TEREPHTALIQUE ET SON UTILISATION COMME AGENT ANTISALISSURE

Publication

EP 1097190 A1 (FR)

Application

EP 99929469 A

Priority

  • FR 9901691 W
  • FR 9809042 A

Abstract (en)

[origin: FR2781233A1] Terephthalic polyester composition comprises PET homooligomer and a sequenced copolymer with PET and polyoxyethylene sequences, useful as soil release agent in laundry detergents. Terephthalic polyester composition (CPT) comprising a mixture of (A) an ethyleneterephthalate homooligomer (PET1) consisting essentially of repeating oxyethylene terephthalate (TE) units of formula (I), and (B) a sequenced terephthalic copolymer (PET2/TE-POE) comprising: (1) at least one polyethylene terephthalate sequence (PET2) consisting of repeating oxyethylene terephthalate units (TE) of formula (I) and (2) at least one polyoxyethylene terephthalate sequence (TE-POE) of formula (II). The composition is such that: (1) the number of units (TE) in (PET1) is no more than 10%, preferably no more than 7 %, of the total number of units (TE) in the polyester composition (CPT); (2) the proportion by weight of total units (TE) present in the composition (CPT) is at least 11 %, preferably 11.5-17 %, of the total weight of the composition (CPT); (3) the proportion by weight of mono(oxyethyleneoxy) units (OEO) of formula (III) is at least 1.3 %, preferably 1.3-2.3 %, of the total weight of the composition (CPT), these residues (OEO) being present in aromatic oxyethylene diester groups (ODA) of formula (IV) present in the total of sequences (PET1) + (PET2); and (4) the weight average molecular weight of the sequenced terephthalic copolymer (PET2/TE-POE) is at least 30000, preferably at least 35000 and especially at least 40000. -C(O)-A- C(O)-O-CH2-CH2-O- (I) -C(O)-A-C(O)-O-CH2-CH2-O-(CH2-CH2-O)n- (II) 1/2O-CH2-CH2-O1/2 (III) -A-C(O)-O-CH2-CH2-O-C(O)-A- (IV) A = 1,4-phenylene; n = a value such that the sequence has a mean number average molecular weight of 1500-4000, preferably 3000-4000. Independent claim are also included for the preparation of the composition and detergent formulations comprising the composition.

IPC 1-7 (main, further and additional classification)

C11D 3/37; C08G 81/00; C08G 63/672; C08L 67/02

IPC 8 full level (invention and additional information)

C08G 63/672 (2006.01); C08G 81/00 (2006.01); C08L 67/02 (2006.01); C11D 3/37 (2006.01); C08G 63/83 (2006.01)

CPC (invention and additional information)

C11D 3/3715 (2013.01); C08G 63/672 (2013.01); C08G 81/00 (2013.01); C08L 67/02 (2013.01); C08G 63/83 (2013.01)

Combination set (CPC)

C08L 67/02 + C08L 67/025

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

FR 2781233 A1 20000121; FR 2781233 B1 20000818; AU 4627499 A 20000207; BR 9912100 A 20010502; CA 2337815 A1 20000127; CN 1309688 A 20010822; EP 1097190 A1 20010509; JP 2002520477 A 20020709; US 6579837 B1 20030617; WO 0004120 A1 20000127

INPADOC legal status


2004-06-16 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20031202

2003-09-03 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20030721

2001-05-09 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010213

2001-05-09 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A1

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE