Powder dispersant for hydraulic compositions

Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Processes of preparing a desired or intentional composition...

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C524S026000, C524S523000, C526S318420

Reexamination Certificate

active

07030178

ABSTRACT:
The present invention provides a powdery dispersant for hydraulic compositions, which is excellent in pumping before drying and in pressure resistance and humidity resistance, which comprises one or more copolymers obtained by polymerizing a specific vinyl monomer (1) such as an ethylenically unsaturated carboxylic acid derivative having a polyoxyalkylene group with a specific vinyl monomer (b) such as (meth)acrylic acid etc., wherein the average number of C2-4oxyalkylene groups or oxystyrene groups added is 45 to 150, (a)/[(a)+(b)]×100 ranges from 15 to 45 (mol-%), and at least a part of the copolymers are monovalent or polyvalent metal salts.

REFERENCES:
patent: 6437027 (2002-08-01), Isomura et al.
patent: 1 052 232 (2000-11-01), None
patent: 2669761 (1997-07-01), None
patent: 9-309756 (1997-12-01), None
patent: 09-328345 (1997-12-01), None
patent: 09309756 (1997-12-01), None
patent: 11-071154 (1999-03-01), None
patent: 41-1157897 (1999-07-01), None
patent: 11-292601 (1999-10-01), None
patent: 11-310444 (1999-11-01), None
patent: 2000-26145 (2000-01-01), None
patent: 2000-26146 (2000-01-01), None
patent: 2000-044309 (2000-02-01), None
patent: 2000-086315 (2000-03-01), None
patent: 2000-0103660 (2000-04-01), None
patent: 2000-327384 (2000-11-01), None
patent: 2001-302305 (2001-10-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Powder dispersant for hydraulic compositions does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Powder dispersant for hydraulic compositions, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Powder dispersant for hydraulic compositions will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3530673

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.