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US 4,065,630 AGranted
Polyoxyalkylene fluoroalkyltrimellitates
AssigneePennwalt Corporation
InventorStanley Robert Sandler
Life of this patent
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Abstract
Novel polyoxyalkylene fluoroalkyltrimellitate compounds are disclosed that are useful for improving the soil release properties of textiles. These compounds may be conveniently prepared by reacting a fluorinated alkyl thiol or amine with trimellitic anhydride monoacid chloride to form a fluorinated trimellitic anhydride intermediate product which is then reacted with a polyoxyalkylene derivative.
Claims12
A compound of the formula ##STR35## wherein:
- a. the ring is 1, 3, 4 tri-substituted
- b. Z is NR, Z.sup.1 is O and Z.sup.2 is selected from O, S, or NR where R is H or an alkyl of 1 to 4 carbon atoms,
- c. Q is selected from -- CH.sub.2 -).sub.1--10,
- d. R.sup.1 and R.sup.2 are moieties independently selected from hydrogen or an alkyl having 1 to 4 carbon atoms,
- e. m and p are independent integers from 0 to 30 describing repeating units of polyoxyalkylene groups that form a chain with at least one polyoxyalkylene chain of at least three repeating units being present,
- f. R.sup.1 and R.sup.2 are one or more of said moieties within the repeating units m and p,
- g. R.sub.f is selected from the group consisting of a linear or branched perfluoroalkyl a linear or branched monochloroperfluoroalkyl, ora linear or branched perfluoroisoalkoxyalkyl wherein each member of the group has 3 to 20 carbon atoms,
- h. r is an integer from 1 to 10,
- i. A is a linking group selected from the group consisting of the acyl segment of alkanoic or mono or dicyclic aromatic polycarboxylic acids, alkanoic or mono or dicyclic aromatic anhydrides or alkanoic or mono or dicyclic aromatic polycarbamates, linear alkylene of 2 to 12 carbon atoms or a cyclic alkylene of 5-8 carbon atoms or a branched alkylene of 3-12 carbon atoms, and
- j. R.sup.3 is selected from H or an alkyl of 1 to 20 carbon atoms.
7 more elements
Dependencies are inferred from the claim text.