Appeal 2007-0907
Application 10/159,367
The Appellants claim a cleaning and degreasing composition having
low or zero volatile organic compounds which comprises a nonionic
surfactant, a cationic surfactant, and a polyhydric alcohol having at least
three free hydroxyl groups. According to Appellants, the use of polyhydric
alcohol having at least three free hydroxyl groups avoids gelling issues, as
does propylene glycol which is typically used in the prior art, while at the
same time generating no recordable volatile organic compounds (Br. 4).
Representative claim 1 reads as follows:
1. A cleaning and degreasing composition having low or zero volatile
organic compounds which comprises
i) at least one nonionic surfactant, and
ii) at least one cationic surfactant, represented by Formula I
R1R2R3R4N+X- (I)
wherein R1 is a linear or branched, saturated or unsaturated C6-C22 alkyl
group or aralkyl or R5-[O(CH2)y]m;
R2 is C1-C6 alkyl group or R1;
R3 and R4 are C2-C4 random or block or homogeneneous polyoxyalkylene
groups;
R5 is a linear or branched, saturated or unsaturated C1-C18 alkyl group, or
hydrogen;
m is integer from 1-20;
y is 2 or 3 and
2
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Last modified: September 9, 2013