Back to results
US 4,544,414 AGranted
Self-emulsifying sizing composition
AssigneeArakawa Kagaku Kogyo Kabushiki Kaisha
InventorsKimio Kawatani, Takashi Fujikawa, Eiji Watanabe
Life of this patent
Estimating the term…
Abstract
A self-emulsifying sizing composition comprising at least one substituted succinic anhydride, and at least one member selected from the group consisting of an acetylated polyoxyethylene sorbitan fatty acid ester and a polyoxyethylene compound as a dispersing agent. The composition can simultaneously satisfy the dispersibility in water, the storage stability and the sizing effect, and is suitable for use in neutral paper making.
Claims1
A self-emulsifying sizing composition comprising:
- (A) at least one member selected from the group consisting of;
- a substituted succinic anhydride having a linear or branched substituent of the formula (I):
- ##STR10## wherein R.sup.1 is an alkyl or alkenyl group having 9 to 23 carbon atoms, and a substituted succinic anhydride of the formula (II):
- ##STR11## wherein R.sup.2 is an alkyl group having 1 to 27 carbon atoms, R.sup.3 is an alkyl or alkenyl group having 2 to 28 carbon atoms and a total number of carbon atoms in R.sup.2 and R.sup.3 is 9 to 29, and
- (B) at least one member selected from the group consisting of:
- an acetylated polyoxyethylene sorbitan fatty acid ester, and a polyoxyethylene compound of the formula (III):
- ##STR12## wherein R.sup.4 is an alkyl group having 8 to 20 carbon atoms, n is an integer from 3 to 30 and A is oxygen atom, phenyleneoxy group or ##STR13##
4 more elements
Dependencies are inferred from the claim text.