Title:
STABLE SUBSTITUTED ANHYDROUS SUCCINIC ACID/EMULSIFIER COMPOSITION AND SIZING METHOD OF PAPER USING THE SAME
Document Type and Number:
Japanese Patent JPS60175532
Kind Code:
A
Abstract:
The stability on ageing of hydrocarbyl-substituted succinic anhydride/emulsifier mixtures is enhanced by employing as the emulsifier a capped emulsifier of the general formula: R-W-Yn wherein R is a hydrophobic alkyl, alkylaryl, arylalkyl or acyl group containing from 8 to 30 carbon atoms; W is a water-soluble polyethyleneoxy-containing group having from 3 to 80 ethylene oxide units which is independently connected to R and Y through oxygen, sulfur or nitrogen linkages; Y is an acyl capping group for the oxygen, sulfur or nitrogen linkages on W not connected to R, wherein Y contains from 2 to 8 carbon atoms, provided that no more than 7 carbon atoms are methylene carbons (as defined in the specification); and further provided that Y may not contain a free carboxyl group; n is 1 /3, 1 /2, 1, 2, or 3; and the hydrophile-lipophile balance is between 9 and 18 on the HLB scale. Aqueous emulsions prepared from such mixtures are useful for imparting water repellency to surfaces containing groups reactive to anhydrides and for sizing cellulosic material such as paper, or the pulp from which paper is made.
Inventors:
UIRIAMU ARAN SUUIINII
Application Number:
JP28186684A
Publication Date:
September 09, 1985
Filing Date:
December 27, 1984
Export Citation:
Assignee:
CHEVRON RES
International Classes:
C09K23/00; C09K23/42; D21H17/06; D21H17/14; D21H17/15; D21H17/16; C09K3/18; D21H17/53; D21H19/24; (IPC1-7): B01F17/42; B01F17/46; C09K3/18; D21H1/40; D21H3/08; D21H3/60
Attorney, Agent or Firm:
Hideto Asamura