C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3021, 400/57
C08L 67/02 (2006.01) C08J 3/20 (2006.01) C08L 33/02 (2006.01) C11D 3/00 (2006.01) C11D 3/37 (2006.01)
Patent
CA 1264883
62301-1331 STABILIZATION OF POLYETHYLENE TEREPHTHALATE - POLYOXYETHYLENE TEREPHTHALATE SOIL RELEASE PROMOTING POLYMERS ABSTRACT OF THE DISCLOSURE: Polyethylene terephthalate - polyoxyethylene tereph- thalate soil release promoting polymers, which have been found to be subject to loss of soil release promoting properties on storage in contact with alkaline material, such as builder salts for synthetic organic detergents, are stabilized by melt- ing them together with a water soluble polyacrylate and subse- quently converting the melt to solid particles which contain the PET - POET polymer and polyacrylate in intimate contact. Preferably the melt is at a temperature above 70°C., such as within the range of 70 to 150°C., the melt is solidified by cooling and the solid product resulting is cryogenically side reduced to desired particle size and flake shape, preferably such as will pass through a No. 10 sieve, U.S. Sieve Series.
489906
Colgate-Palmolive
Smart & Biggar
LandOfFree
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