Use of polyacrylic acids as grinding aids for calcium carbonate

Details Use of polyacrylic acids as grinding aids for calcium carbonate Use of polyacrylic acids as grinding aids for calcium carbonate

2007-11-20

2007-11-20

Green, Anthony J. (Department: 1755)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C106S817000, C241S016000, C241S017000, C423S430000, C423SDIG015, C524S425000

Reexamination Certificate

active

10548582

ABSTRACT:
The invention relates to the use of polyacrylic acids which contain organic terminal groups containing sulphur, comprising at least two carbon atoms, having an average molecular weight Mwof 5 000-30 000 g/mol and which are at least partially neutralized by a base which is selected from the group of alkali hydroxides and ammonia as auxiliary agents for wet grinding of calcium carbonate. The invention also relates to fine particle aqueous suspensions of calcium carbonate which are produced by wet grinding of calcium carbonate in the presence of said polyacrylic acids.

REFERENCES:
patent: 3604634 (1971-09-01), Windle
patent: 4175066 (1979-11-01), Shibazaki et al.
patent: 4278208 (1981-07-01), Falcon-Steward
patent: 4509987 (1985-04-01), Farrar et al.
patent: 4839417 (1989-06-01), Suetterlin et al.
patent: 4840985 (1989-06-01), Gonnet et al.
patent: 4868228 (1989-09-01), Gonnet et al.
patent: 5085800 (1992-02-01), Minayoshi et al.
patent: 5181662 (1993-01-01), Bousquet et al.
patent: 5241011 (1993-08-01), Landscheidt et al.
patent: 5275650 (1994-01-01), Mongoin et al.
patent: 5297740 (1994-03-01), Landscheidt et al.
patent: 5573188 (1996-11-01), Bousquet et al.
patent: 6395813 (2002-05-01), Duccini et al.
patent: 1241497 (1988-08-01), None
patent: 36 20 149 (1987-12-01), None
patent: 40 04 953 (1991-08-01), None
patent: 113 048 (1984-07-01), None
patent: 313 483 (1989-04-01), None
patent: 53-144499 (1978-12-01), None
patent: 54-6909 (1979-01-01), None
patent: 57-184430 (1982-11-01), None
patent: 59-193126 (1984-11-01), None
patent: 61-174211 (1986-08-01), None
patent: 2-129019 (1990-05-01), None
patent: 2000-281959 (2000-10-01), None
patent: 2002-090550 (2002-03-01), None

Affiliated with

Also associated with

Rating

Use of polyacrylic acids as grinding aids for calcium carbonate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Use of polyacrylic acids as grinding aids for calcium carbonate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Use of polyacrylic acids as grinding aids for calcium carbonate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3889830