发明名称 |
TEREPHTHALIC POLYESTER COMPOSITION AND ITS USE AS SOIL RELEASE AGENT |
摘要 |
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. |
申请公布号 |
EP1097190(A1) |
申请公布日期 |
2001.05.09 |
申请号 |
EP19990929469 |
申请日期 |
1999.07.09 |
申请人 |
RHODIA CHIMIE |
发明人 |
FLEURY, ETIENNE;BOSSENNEC, VERONIQUE;DUBOIS, JACQUES |
分类号 |
C08G63/672;C08G63/83;C08G81/00;C08L67/02;C11D3/37 |
主分类号 |
C08G63/672 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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