C - Chemistry – Metallurgy – 08 – G
Patent
C - Chemistry, Metallurgy
08
G
260/473.1, 8/93.
C08G 63/66 (2006.01) C08G 63/672 (2006.01) C11D 3/00 (2006.01) C11D 3/37 (2006.01) C11D 3/60 (2006.01) C11D 17/04 (2006.01)
Patent
CA 1324152
CAPPED 1,2-PROPYLENE TEREPHTHALATE- POLYOXYETHYLENE TEREPHTHALATE POLYESTERS USEFUL AS SOIL RELEASE AGENTS ABSTRACT OF THE DISCLOSURE Capped 1,2-propylene terephthalate-polyoxyethylene tere- phthalate polyesters useful as soil release agents are disclosed. Preferred polyesters have the formula: Image Image wherein each R1 is a 1,4-phenylene moiety; the R2 are essentially 1,2-propylene moieties; the R3 are essentially the polyoxyethylene moiety -(CH2CH2O)q-CH2CH2-; each X is ethyl or preferably methyl; each n is from about 12 to about 45; q is from about 12 to about 90; the average value of u is from about 5 to about 20; the average value of v is from about 1 to about 10; the average value of u + v is from about 6 to about 30; the ratio u to v is from about 1 to about 6.
534544
Diehl Francis Louvaine
Gosselink Eugene Paul
Kirby Eades Gale Baker
The Procter & Gamble Company
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