公开(公告)号：EP3322788A1

公开(公告)日：2018-05-23

申请号：EP16750196.4

申请日：2016-07-14

申请人： Henkel Limited

发明人： NORMAN, Russell ,  WILSON, Brian ,  JACKSON, Clare ,  KAVANEY, Janice

IPC分类号： C11D1/14 ,  C11D3/22 ,  C11D3/18 ,  C11D17/00

CPC分类号： C11D17/0056 ,  C11D1/143 ,  C11D1/24 ,  C11D1/37 ,  C11D3/122 ,  C11D3/188 ,  C11D3/2003 ,  C11D3/225 ,  C11D3/382 ,  C11D3/40

摘要： A lavatory cleansing block including: an alkane sulfonate; a carboxymethylcellulose; a hydrophobe; and optionally a dye, wherein the alkane sulfonate is present in an amount of 15 to 40% by weight of the total block, the weight ratio of alkane sulfonate to carboxymethylcellulose is 3:1 to 8:1 and the total weight of the block is less than 25 g.

公开(公告)号：EP3322789A2

公开(公告)日：2018-05-23

申请号：EP16750198.0

申请日：2016-07-14

申请人： Henkel Limited

发明人： NORMAN, Russell ,  WILSON, Brian ,  JACKSON, Clare ,  KAVANEY, Janice

IPC分类号： C11D1/14 ,  C11D1/22 ,  C11D1/37 ,  C11D1/83 ,  C11D3/18 ,  C11D3/20 ,  C11D3/22 ,  C11D3/40 ,  C11D3/50 ,  C11D17/00 ,  E03D9/02

CPC分类号： C11D17/0056 ,  C11D1/143 ,  C11D1/22 ,  C11D1/37 ,  C11D1/83 ,  C11D3/188 ,  C11D3/2013 ,  C11D3/202 ,  C11D3/2037 ,  C11D3/2062 ,  C11D3/225 ,  C11D3/40 ,  C11D3/50

摘要： A lavatory cleansing block comprising an alkane sulphonate, a carboxymethylcellulose, a dye and a hydrophobe, wherein the weight ratio of carboxymethylcellulose to dye ranges from 3:1 to 0.5:2, preferably from 2:1 to 0.75:1. The block may comprise 3-10% wt carboxymethylcellulose, with a viscosity of 1000-8000 cP in a 1% aqueous solution at 25oC and a degree of substitution of 0.6-1.45. It may comprise 0.5-10% wt of dye, preferably Acid Blue 9 and 15-35% wt of alkane sulphonate, preferably sodium alkylbenzene sulphonate. Preferably it comprises 2-15% wt of a hydrophobe, which may be selected from a terpene, a C9-11 primary alcohol, a non-ionic surfactant, a perfume or mixtures thereof, being more preferably pine oil or a mixture thereof with C9-11 primary alcohols. The toilet cleaning block may also contain additional surfactants, preferably an alpha-olefin sulphonate, a density control agent, preferably sodium sulphate, a filler, preferably magnesium sulphate, a preservative, preferably sodium orthophenylphenate etc. The block is preferably free of guar gum and phosphorus-containing compounds. It is preferably placed in the cistern of a toilet, has a toilet life of at least 60 days and leaves less than 3% wt residue at the end of its useful life.