Barrier coatings for oil and grease resistance

Stock material or miscellaneous articles – Coated or structually defined flake – particle – cell – strand,... – Particulate matter

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0


C428S537500, C428S507000, C428S326000, C428S328000, C428S330000, C427S391000, C427S395000

Reexamination Certificate



A multi layer composite having oil and grease resistance comprising:a) a paper or paperboard substrate,b) a base coat on a surface of said substrate comprising a first polymer selected from the group consisting of film forming natural and synthetic polymers in the substantial absence of a mineral pigment filler, andc) a top coat on a surface of said base coat, said top coat comprising a continuous polymer phase comprising one or more film forming synthetic polymers having dispersed therein at least one platy mineral pigment and at least one non-platy mineral pigment. This invention also relates to a method of making the composite and articles of manufacture fabricated totally or in part from the composite of this invention where oil and grease resistance is required or desired, such as container, bags and wraps for packaging oily or greasy materials such as animal and human food.

patent: 3661697 (1972-05-01), Kimmel et al.
patent: 4391833 (1983-07-01), Self et al.
patent: 4421825 (1983-12-01), Seiter et al.
patent: 5153061 (1992-10-01), Cavagna et al.
patent: 5776619 (1998-07-01), Shanton
patent: 5840825 (1998-11-01), Carlblom et al.
patent: WO 98/56861 (1998-12-01), None
Nissi article. 1999 TAPPI Coating Conference.
Vaha-Nisi, Filled Barrier Dispersion Coatings, 1999 TAPPI Coating Conference Technical Paper Presentation.


Say what you really think

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


Barrier coatings for oil and grease resistance does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Barrier coatings for oil and grease resistance, we encourage you to share that experience with our community. Your opinion is very important and Barrier coatings for oil and grease resistance will most certainly appreciate the feedback.

Rate now


Profile ID: LFUS-PAI-O-3949289

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