Process for making soil release polymer granules

Details Process for making soil release polymer granules Process for making soil release polymer granules

1997-08-27

1998-06-23

Green, Anthony

Cleaning compositions for solid surfaces, auxiliary compositions

Auxiliary compositions for cleaning, or processes of preparing

Soil-release or antisoiling composition

252861, 252862, 510299, 510445, 510475, 510517, 523334, 524379, 524155, 528295, 5283087, 560 14, D06M 1500, C11D 726, C11D 1706

Patent

active

057705585

ABSTRACT:
The subject invention involves processes for making granular compositions comprising soil release polymers, the polymers comprising at least about 10% of substantially linear esters having a backbone; the esters being uncapped or end-capped on one or both ends of the backbone; the esters comprising in their backbones oxyalkyleneoxy units and hydrophobic aryldicarbonyl units; the esters having a molecular weight of from about 500 to about 20,000; the polymers if in solid state having the tendency when exposed to moisture to spontaneously rearrange from an amorphous form which is readily soluble in water to a crystalline form which is relatively insoluble in water; the process comprising the following steps:

REFERENCES:
patent: 4020015 (1977-04-01), Bevan
patent: 4877896 (1989-10-01), Maldonado et al.
patent: 4999128 (1991-03-01), Sonenstein
patent: 5041230 (1991-08-01), Borcher, Sr. et al.
patent: 5182043 (1993-01-01), Morrall et al.
patent: 5196133 (1993-03-01), Leslie et al.
patent: 5415807 (1995-05-01), Gosselink et al.
patent: 5451341 (1995-09-01), White
patent: 5700386 (1997-12-01), Creedon et al.

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