Bleaching and dyeing; fluid treatment and chemical modification – Cleaning or laundering – Removing formation impurities from artifical fiber
Patent
1989-12-04
1991-06-25
Willis, Prince E.
Bleaching and dyeing; fluid treatment and chemical modification
Cleaning or laundering
Removing formation impurities from artifical fiber
25217421, 25217422, 25217413, 25217424, 252135, 252174, 252 91, 252 89, 252DIG1, 252DIG2, 252DIG15, C11D 172, C11D 337, C11D 1100, D06M 15507
Patent
active
050264001
ABSTRACT:
Narrow range ethoxylate nonionic detergents, in combination with coil release promoting polyethylene terephthalate-polyoxyethylene terephthalate (PET-POET) copolymer (in place of broad range ethoxylate nonionic detergent and PET-POET copolymer) are of significantly and unexpectedly improved soil release promoting activity in built synthetic organic detergent compositions, of either the phosphate-built or non-phosphate-built types. Preferably, there will be present with the PET-POET copolymer a stabilizing proportion of polyacrylate, to stabilize the PET-POET copolymer against deterioration and loss of soil release promoting activity on storage at elevated temperature, especially when in contact with alkaline components of the detergent composition. The improved soil release promoting activity is most pronounced when the laundry to be washed and treated is subjected to repeated launderings with the invented compositions in cold water and when it includes polyester-containing fibrous materials.
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Buda Charles
Holland Richard J.
Colgate-Palmolive Company
Grill Murray M.
Lieberman Bernard
Silbermann James
Sullivan Robert C.
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