Process for the preparation of hydrophobic agents

Details Process for the preparation of hydrophobic agents Process for the preparation of hydrophobic agents

C - Chemistry, Metallurgy

08

K

400/7216, 261/73

C08K 5/42 (2006.01) C04B 2/06 (2006.01) C04B 28/10 (2006.01) C08K 3/22 (2006.01) C08L 83/04 (2006.01) C09K 3/18 (2006.01)

Patent

CA 1093233

ABSTRACT OF THE DISCLOSURE A process is provided for preparing hydrophobic agents which may be combined with inorganic binding agents prior to molding. The process involves slaking caustic lime with an organopolysiloxane and water in which at least one mol of water is present for each mol of CaO, the organopolysiloxane in the emulsion having an average of from 0.8 to 1.8 SiC-bonded hydrocarbon radicals selected from the group consisting of alkyl radicals having from 1 to 16 carbon atoms and phenyl in the presence of a protective colloid and thereafter dried, the improvement which comprises: adding to the above mixture at least one alkyl metal salt of an acid having the formula R(O)aSO3H in which R is a monovalent hydrocarbon radical having up to 50 carbon atoms and which may also con- tain oxygen and nitrogen atoms and a is 0 to 1. The agents can be added to the inorganic binding agents at any time and can be uniformly dispersed without danger of demulsification. While they are easily wetted with water, the molded objects or coatings have a great degree of water repellency.

271876

Affiliated with

Also associated with

Rating

Process for the preparation of hydrophobic agents does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for the preparation of hydrophobic agents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of hydrophobic agents will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-81539