mer chain to the silicone would require ap-propriate“coupling groups.” Evonik Goldschmidt researchers rose to the challenge by
polymerizing the cationic monomers in the
presence of silicone polyethers. The ether
groups are compatible with the quat
monomers and they readily chain transfer to
give graft copolymers. Once grafted, the
copolymers are quaternized to confer permanent positive charges with enhanced
substantivity to hair. The grafts are obtained
by polymerizing the readily available
monomers, dimethylaminoethylmethacry-late or 3-trimethylammoniopropyl
Biopolymer latex may be produced by
crosslinking starch with glyoxal (for example
in an extruder) followed by cryogenic grinding. Such biopolymer latexes are revealed by
Honeywell to be suitable hair fixatives with
the benefit that the polymers are derived
from natural and sustainable resources. 15
Conventional conditioning agents are incompatible with hair dye formulations. Dow
researchers have revealed that they have resolved the need to simultaneously color and
condition the hair by the addition of ethylene acrylic acid copolymers optionally in
combination with a metallocene polymerized polyolefin. 16 The addition of one percent
polymer provided advantages in wet combing benefits. The oxidizing agents used in
hair colorants damage hair fibers. Moreover,
the rapid kinetics of oxidation can cause uneven coloring of the hair, especially when
long preparation procedures are involved
such as in selective highlighting. Encapsulating the oxidation precursors with poly-methacrylates, poly(vinylacetate)s or shellac
results in a more uniform coloring process. 17
Our review of recent patent applications revealed interesting advances in technologies
relating to the use of polymers in hair care:
1. Block copolymers continue to make
inroads into personal care products. In this
case we identified the proposed use of
cationic/nonionic block copolymers to stabilize surfactant foams.
2. Solid, easily dispersible foams offer
advantages with respect to improved 2-in-1
conditioning over conventional liquid systems and the capability to build in stimuli-responsive fragrance attributes.
3. Super-mild detergent systems are
claimed from the inclusion of cationic polymer induced flocs of petrolatum in isethion-ate-based systems.
4.Vesicular gel phase conditioners can be
included in anionic shampoos for 2-in-1
cleaning and conditioning.
5. There are some advances in rheology
modifiers mainly around the inclusion of
complex hydrophobes within the associative
6. The trend toward multi-purpose
thickeners continues with a rheology modifier that contains vinylpyrrolidone
monomer to confer additional film-forming characteristics.
7. Longer-lasting silicone conditioning of
colored hair is claimed from graft copolymers of dimethylaminomethacrylate on a
silicone ether backbone.
8. Encapsulation of hair coloring precursors is advanced as a way to achieve more
consistent coloring and to mitigate hair
damage due to the coloring process.
1. Yeung, Dominic Wai-Kwing; Bergeron,
Vance; Bodet, Jean-Francois; Sivik, Mark Robert;
Kluesener Bernard William; Scheper, William
Michael;“Polymers, compositions and methods
for use for foams, laundry detergents, shower
rinses and coagulants,” US Patent Application
20110257015, Oct. 20, 2011, Assignee Rhodia Inc.
2. Glenn, JR., Robert Wayne; Kaufman, Kathleen Mary; Dunbar, James Charles; Gardlik, John
Michael; Murphy; Bryan Patrick;“Porous, Dissolvable Solid Substrate and Surface Resident Coating
Comprising Water Sensitive Actives,” US Patent
Application 20110195098, Aug. 11, 2011; US
Patent Application 20110189247, Aug. 4, 2011; US
Patent Application 20110189246, Aug. 4, 2011; US
Patent Application 20110182956, July 28, 2011; US
Patent Application 20110182956, July 28, 2011.
3. Ouali, Lahoussine; Jacquemond, Marlene;
“Microcapsules and uses thereof,”US Patent Application 20110230390, Sept. 22, 2011.
4. Tsaur, Liang Sheng; Ananthapadmanabhan,
Kavssery P.;“Personal Wash Cleanser Comprising Defined Alkanoyl Compounds, Defined Fatty
Hair Care Polymers •
Acyl Isethionate Surfactant Product and Skin or
Hair Benefit Agent Delivered in Flocs Upon Dilution,” US Patent Application 20110245125, Oct.
6, 2011, assignee Conopco, Inc., dba Unilever.
5. Baldaro, Eva; Bouzeloc, Sylvie; Postiaux,
Stephanie; Schirosi, Esterina; Soontjens, Dirk;
Ugazio, Stephane;“Home And Personal Care Compositions,” US Patent Application 20110189248,
Aug. 4, 2011.
6. Cooke, Michael James; Pham, Thuy-Anh;
Murray, Andrew Malcolm;“Conditioning shampoo comprising an aqueous conditioning gel
phase in the form of vesicles,” US Patent Application 20110243870, Oct. 6, 2011.
7. Hough, Lawrence Alan; Bzducha, Wojciech;
Herve, Pascal; Hennaux, Pierre; O’Rourke, Mary;
Park, Ericka;“Compositions with freeze thaw stability;” US Patent Application 20110223125; assignee Rhodia Operations
8. Houg,; Lawrence; Bzducha, Wojciech; Herve,
Pascal; Hennaux, Pierre; Douglass, Andrew;
Adamy, Monique; Gonzalez, Inigo; Rheology modifier polymer; US Patent Application 20110243873,
Oct. 6, 2011; assignee Rhodia Operations
9. Talingting Pabalan, Ruela; Martinez-Castro,
Nemesio; Kesavan, Subramanian; Labeau, Marie
Pierre; “Rheology modifier compositions and
methods of use,” US Patent App. 20110256085,
Oct. 20, 2011; assignee Rhodia Operations.
10. Sogabe, Atsushi; Kaneda, Isamu; “Water
Soluble Thickener And Cosmetic Preparation
Containing Same;” US Patent Application
20110237752, Sept. 29, 2011; assignee Shiseido
11. Nguyen Kim Son; Jahnel, Wolfgang;
“Method for producing cross-linked acrylic acid
polymers;” US Patent Application 20110158929,
June 30, 2011; assignee BASF SE.
12. Nguyen, Kim Son; Fast, Ina; Werner, Rolf;
“Anionic associative rheology modifiers,” US
Higuera, Malena; Mores, Lee; “Hair fixatives
comprising cross linked starches,”US Patent App.
20110212145, Sept. 1, 2011, assignee Honeywell
16. Jordan, Susan L; Schwartz, Curtis;“Personal
care compositions for coloring hair,” US Patent
Application 20110236334, Sept. 29, 2011.
17. Welz, Carolin; Manneck, Hartmut; Kleen,
Astrid; Akram, Mustafa, “Coated Coloring
Agents,” US Patent App. 20110247149, Oct. 13,