TABLe 8.4
Selection.of.Patents.and.Patent.Applications.Related.to.the.Use.of.Bacterial.Cellulose.
in.Fabrication.of.Cosmetic.Materials
Patent/
Application
Patent Description
Assignee
Number
Filed
Composition.in.the.form.of.an.oil-in-water.
L’Oreal
U.S..Patent.
May.2000
emulsion.containing.cellulose.fibrils,.and.its.
6,535,071
uses,.especially.cosmetic.uses
Assembly.comprising.a.substrate.comprising.
L’Oreal
U.S..Patent.
July.2008
biocellulose,.and.a.powdered.cosmetic.
application.
composition.to.be.brought.into.contact.with.the.
12,165,924
substrate
Personal.cleansing.compositions.comprising.a.
Procter.&. U.S..Patent.
August.2010
bacterial.cellulose.network.and.cationic.polymer
Gamble
application.
12,854,340
Wound Dressings and Cosmetic Materials from Bacterial Nanocellulose
171
Because.they.easily.fit.to.the.skin,.BNC.facial.masks.can.act.as.a.carriers.
of.substances.that.nourish,.moisturize,.revitalize,.and.bleach.the.skin,.providing.elasticity,.softness,.and.smoothness..An.example.of.BC-based.facial.
masks.is.a.product.known.as.Bio.Nano.Cellulose.Mask,.produced.by.Green.
Mountain.Co.,.Ltd.,.from.Taiwan.
Patents. and. patent. applications. related. to. cosmetic. uses. of. BNC. are. collected.in.Table 8.4..Two.of.them.were.filed.by.L’Oreal..U.S..Patent.6,534,071.
describes.the.use.of.commercially.available.bacterial.cellulose.(CELLULON ® ,.
Kelco).to.make.oil-in-water.emulsions.for.cosmetic.applications..The.advantages.of.cellulose.fibrils.used.for.this.purpose.are.much.greater.stability.and.
better.cosmetic.and.physicochemical.properties.of.the.resultant.oil-in-water.
emulsions..Furthermore,.BNC.irritates.neither.skin.nor.eyes.
U.S..Patent.application.12,165,924.(Table 8.4).describes.the.use.of.bacterial.
cellulose. for. facial. treatment. masks. consisting. of. hydrated. cellulose. produced.by.A. xylinum.on.which.powdered.cosmetic.compositions.are.homogeneously.distributed.and.dissolved..Interestingly,.bacterial.cellulose.was.able.
to. dissolve. the. powders. much. faster. than. an. acrylic. hydrogel.. This. patent.
application. describes. the. use. of. facial. masks. for. exfoliant. and. brightening.
effects.(when.the.powder.contains.salicylic.acid,.ascorbic.acid,.citric.acid,.and.
sodium.bicarbonate),.for.purifying.effects.(hot.clay.masks.are.obtained.when.
the. powder. contains. green. clay,. kaolin,. and. magnesium. sulfate),. and. for.
antiwrinkle. patches. (containing. lyophilized. thermal. plankton. powder).. In.
each.case,.powders.containing.active.ingredients.for.specific.applications.are.
spread.onto.the.hydrated.cellulose.film.and.immediately.applied.to.the.face.
U.S.. Patent. application. 12,854,340. (Table  8.4),. filed. in. 2010. by. Procter. &.
Gamble,.describes.a.personal.cleansing.composition.(e.g.,.facial.scrub).containing. a. bacterial. cellulose. network.. Cellulose,. which. was. obtained. from.