公开(公告)号：US5128053A

公开(公告)日：1992-07-07

申请号：US651577

申请日：1991-02-06

申请人： Gene A. Gummo ,  Gary W. Earl ,  Nancy Johnston

发明人： Gene A. Gummo ,  Gary W. Earl ,  Nancy Johnston

IPC分类号： C11D1/62 ,  C11D17/04

CPC分类号： C11D17/047 ,  C11D1/62

摘要： This invention relates to compositions for use in automatic laundry dryers comprising at least one piperazine compound of the formula: ##STR1## wherein A is ##STR2## or ##STR3## Y is --O-- or --NR.sub.4 --; Z is alkylene containing 2 to 6 carbon atoms in the principal chain and a total of up to 8 carbon atoms;R is alkyl containing from about 8 to about 30 carbon atoms and may contain at least one of --S--, --O--, ##STR4## CONR.sub.4, epoxy and double bond in the chain; R.sub.2 is alkyl containing up to about 30 carbon atoms and may contain at least one of --S--, --O--, ##STR5## --CONR.sub.4 --, epoxy and double bond in the chain; and R.sub.3 and R.sub.4 are each H or lower alkyl;with the proviso that the total number of carbon atoms in the acyl R and R.sub.2 groups is at least 18;X is a salt-forming anion; R.sub.1 is H, lower alkyl, hydroxylower- alkyl or benzyl; and n is an integer from 1 to 4.