Paper and materials and processes for its production

Details Paper and materials and processes for its production Paper and materials and processes for its production

2007-12-18

2010-11-30

Hug, Eric (Department: 1791)

Paper making and fiber liberation

Processes and products

Non-fiber additive

C162S158000, C162S185000, C106S162100, C106S218000, C106S238000, C549S233000

Reexamination Certificate

active

07842164

ABSTRACT:
Paper is made by providing an anionic aqueous emulsion of a size, usually a reactive anhydride size, and mixing it into a cellulosic suspension prior to drainage of the suspension to form a sheet which is then dried to provide paper (including paper board). The emulsion is preferably stabilised wholly or mainly by 0.5 to 30 parts by weight (per part by weight size) of water soluble, anionic, polymeric stabiliser, which is preferably anionic starch. Alternatively, the emulsion may be added to the cellulosic suspension while it is anionic, before mixing retention into it. The emulsion may be added to the cellulosic suspension after cationic retention aid has been added to it, the emulsion being added with, before or after mixing anionic microparticulate material or other anionic bridging aid, prior to drainage of the suspension.

REFERENCES:
patent: 5969011 (1999-10-01), Frolich et al.
patent: 6306255 (2001-10-01), Frolich et al.
patent: 6576049 (2003-06-01), Dilts et al.

Affiliated with

Also associated with

Rating

Paper and materials and processes for its production does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Paper and materials and processes for its production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Paper and materials and processes for its production will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4189729