Polish containing silicone elastomer particles

A polish including a film forming wax material and an organopolysiloxane elastomer. The elastomer is in the form of particles mixed with the film forming wax. The particles are spherical and have an average diameter of from about 0.3 um to about 30 um. The polish contains at least one additive selected from the group consisting of organic solvents, silicone oils, and surfactants. The film forming wax material may be one of carnauba wax, montan wax, candelilla wax, ceresin wax, paraffin waxes, and beeswax.

The present invention is directed to a polish. Polishes have been applied 
on the surfaces of leather goods, furniture, musical instruments, 
automotive bodies, for surface protection and for enhanced gloss. For such 
polishes, film-forming materials such as waxes and dimethyl polysiloxanes 
oils as gloss-imparting agents are employed. However, conventional 
polishes have poor applicability and wiping properties, and the surface 
gloss is not durable. 
SUMMARY OF THE INVENTION 
It is an object of the present invention to provide polishes with excellent 
applicability, wipeability, soil removal, and gloss retention 
The present invention concerns polishes comprising film-forming materials 
and organopolysiloxane elastomer particles.

DETAILED DESCRIPTION OF THE INVENTION 
Film-forming materials commonly used in polishes are used in the present 
invention. Such film-forming materials may be waxes such as carnauba wax, 
montan wax, candellila wax, cerisin wax, and paraffins such as solid 
paraffins, liquid paraffins, and beeswax. 
The organopolysiloxane elastomer particles used in the present invention 
are effective for providing good wipe workability, soil removal, and gloss 
retention. Such organopolysiloxane elastomer particles have an average 
diameter of 0.1-1000 .mu.m, preferably 0.3 .mu.m to 30 .mu.m. Below 0.1 
.mu.m, the beneficial effects of organopolysiloxane elastomer are not 
realized, while above 1000 .mu.m, a rough finish is obtained. Preferably, 
the particles should be spherical. The amount used varies depending on the 
type of polishes and is preferably 0.1-30 wt % for cream and emulsion 
polishes and 0.1-50% for solid or paste polishes. Below the lower limit, 
the effects of the organopolysiloxane elastomer particles are not 
realized, while with excessive organopolysiloxane elastomer particles, 
applicability becomes poor. 
The organopolysiloxane elastomer constituting such particles may be 
obtained by curing addition reaction curable organopolysiloxane 
compositions comprising organopolysiloxanes containing silicon-bonded 
hydrogen, organopolysiloxanes containing silicon-bonded vinyl groups, and 
platinum catalyst as the main components; by curing condensation reaction 
curable organopolysiloxane compositions comprising organopolysiloxanes 
containing hydroxy groups at both chain ends, organopolysiloxanes having 
silicon-bonded hydrogen, and organotin compounds as main components; 
curing condensation reaction curable organopolysiloxane compositions 
comprising diorganopolysiloxanes terminated by hydroxy groups at both 
chain ends, hydrolyzable organosilanes, and organotin compounds or titanic 
acid esters as the main component; by curing organic peroxide curable 
organopolysiloxane compositions comprising organopolysiloxanes containing 
vinyl groups and organic peroxides as main components; or curing 
high-energy curable organopolysiloxane compositions by irradiating with 
J-rays or UV rays. Preferred are the addition reaction curable 
organopolysiloxane compositions and the condensation reaction curable 
organopolysiloxane compositions. 
The organopolysiloxane elastomer particles used in the present invention 
can be prepared by many different methods. For example, the above 
organopolysiloxane compositions can be poured into water and mixed 
uniformly by a colloid mill or homomixer. Thereafter, the resulting 
aqueous dispersions are dispersed in water at a temperature above 
50.degree. C. or sprayed into hot air for curing of the organopolysiloxane 
compositions. It is also possible to cure the organopolysiloxane 
compositions and mechanically pulverize the cured products. 
The polishes of the present invention contain the film-forming materials 
and the organopolysiloxane elastomer particles described above. The 
polishes may also contain other additives commonly used in polishes, such 
as organic solvents, silicone oils, water, surfactants, abrasives, dyes, 
perfumes, leveling agents, and thickeners. These additives may be used 
alone or as mixtures. Organic solvents may be kerosene, naphtha, mineral 
spirits, and methylchloroform. Silicone oils may be dimethyl polysiloxane, 
methylphenyl polysiloxane, methylhydrogen polysiloxane, amino-modified 
alkylpolysiloxanes, cyclic dimethyl polysiloxanes, cyclic methylphenyl 
polysiloxanes, cyclic methylhydrogen polysiloxanes, and epoxy-modified 
alkyl polysiloxanes. The additives may be used in an amount of 3-250 wt % 
of the film forming materials. Surfactants are nonionic surfactants such 
as sorbitan fatty acid esters, glycerin fatty acid esters, decaglycerin 
fatty acid esters, polyglycerin fatty acid esters, propylene glycol, 
pentaerythritol- fatty acid esters, polyoxyethylene sorbitan fatty acid 
esters, polyoxyethylene glycerin fatty acid esters, polyethylene glycol 
fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene 
phytosterol, phytosterol polyoxyethylene polyoxypropylene alkyl ether, 
polyoxyethylene castor oil, polyoxyethylene alkylamine fatty acid amide, 
polyoxytetramethylene polyglyceryl alkyl ether, alkyl fatty acid 
triglyceride, and polyoxyalkylene dimethyl polysiloxane copolymers; 
anionic surfactants such as polyoxyalkyl ether sulfate salts, N-acylamino 
acid salts, alkyl phosphate salts, polyoxyethylene alkyl ether phosphate 
salts, and fatty acid salts; cationic surfactants such as alkylammonium 
salts, and alkylbenzylammonium salts; amphoteric surfactants such as 
betaine acetate, imidazolium betaine, and lecithin. 
The polishes of the present invention can be prepared by mixing the 
film-forming materials and organopolysiloxane elastomer particles 
uniformly with the additives. 
The present invention is further explained by the following examples. In 
the examples, parts are by weight, and Me stands for the methyl group. 
REFERENCE EXAMPLE 1 
Preparation of organopolysiloxane elastomer particles (I) 
A mixture was prepared from 100 parts of dimethyl polysiloxane terminated 
by hydroxy groups at both chain ends and having a viscosity of 4000 cSt, 
0.9 parts of methyltrimethoxysilane, 1 part of polyoxyethylene alkyl ether 
(Emulgen 106, a product of Kao Co.), 100 parts of purified water, and 0.2 
parts of stannous octoate. The mixture was passed through a colloid mill 
at a colloid gap of 0.8 mm, discharged into hot water at 60.degree. C., 
allowed to stand for 5 hours, and spray-dried to provide the 
organopolysiloxane elastomer particles. The organopolysiloxane elastomer 
particles thus obtained were spheres of an average particle diameter of 15 
.mu.m as observed by scanning electron micrographs. These particles also 
had rubbery elasticity. 
REFERENCE EXAMPLE 2 
Prepartation of organopolysiloxane elastomer particles (II) 
A mixture was prepared from 100 parts of dimethyl polysiloxane terminated 
by dimethylvinylsiloxy groups at both ends represented by the formula 
##STR1## 
4.7 parts of linear methyl hydrogen polysiloxane containing branches 
represented by (Me).sub.15 (H).sub.7 (SiO).sub.9. 
2.5 parts of polyoxyethylene alkyl ether-type nonionic surfactant 
(Tergitol.RTM. TMN-6, a product of Union Carbide Co.), 100 parts of water, 
and a chloroplatinic acid solution in isopropanol to platinum content of 
100 ppm based on the organopolysiloxane. This mixture was poured into a 
colliod mill to obtain an aqueous dispersion of the organopolysiloxane 
composition. The dispersion was allowed to flow into a hot water bath at 
60.degree. C. to cure the organopolysiloxane composition to obtain 
organopolysiloxane elastomer particles. Observation of the 
organopolysiloxane elastomer particles under scanning electron microscope 
showed spherical particles with an average diameter of 10 .mu.m. The 
particles had rubbery elasticity. 
APPLICATION EXAMPLE 1 
In a container equipped with a stirrer was placed 10 parts of carnauba wax, 
10 parts of ozoride, 20 parts of beeswax, and 10 parts of microcrystalline 
wax, and the mixture was melted at 90.degree. C., and mixed further with 
25 parts of liquid paraffin and 10 parts of dimethyl polysiloxane oil 
having a viscosity of 350 cSt. This was further mixed with magnesium 
silicate and the organopolysiloxane elastomer particles prepared in 
Reference Example 1. While being mixed, the mixture was cooled to 
50.degree. C.; mixing was stopped, and the mixture was allowed to cool 
naturally to obtain a solid polish. This polish was applied to a coated 
metal surface and evaluated for coatability, wipe workability, and 
appearance. Results are set forth in Table I. Evaluation was performed by 
a 3-member panel. 
For comparison, a polish was prepared without the organopolysiloxane 
elastomer particles, and evaluated. The results are also set forth in 
Table I. 
TABLE I 
______________________________________ 
EXAM- EVALUATOR 
PLE ITEMS 1 2 3 
______________________________________ 
Application 
Coatability 
Easy Easy Easy 
Application 
Wipe Realitively 
Easy Easy 
Workability 
Easy 
Application 
Appearance No No No 
Uneveness Uneveness 
Uneveness 
Compara- 
Coatability 
Difficult Somewhat 
Somewhat 
tive Difficult 
Difficult 
Compara- 
Wipe Difficult Catchy Difficult 
tive Workability 
Compara- 
Appearance Totally Uneven Totally 
tive Uneven Uneven 
______________________________________ 
APPLICATION EXAMPLE 2 
In a container equipped with a stirrer was heated and mixed 20 parts of 
carnauba wax (a product of Nippon Chemical Co.), 40 parts of kerosine, and 
20 parts of dimethyl polysiloxane oil. After the carnauba wax was melted, 
10 parts of organopolysiloxane elastomer particles obtained in Reference 
Example 2 was added, and the mixture was allowed to cool to room 
temperature while being stirred to obtain a creamy polish. This polish was 
coated on the surface of a crepe synthetic black leather and the wipe 
workability, gloss, and gloss retention were evaluated. The results are 
set forth in Table II. 
For comparison, a polish was prepared as above without the 
organopolysiloxane elastomer particles (Comparative Example 1), and a 
polish was prepared using polyethylene powder of an average diameter of 10 
.mu.m instead of the organopolysiloxane elastomer particles (Comparative 
Example 2). Evaluations were made and the results are set forth in Table 
II. 
TABLE II 
______________________________________ 
WIPE GLOSS 
EXAM- WORK- SOIL AS AFTER 
PLE ABILITY CLEANING COATED 7 DAYS 
______________________________________ 
Application 
Easy Even until Uniform* 
Good 
Even in crepe No change 
Compara- 
Easy Even in Relatively 
Poor 
tive 1 Even crepe uniform** 
No gloss 
Compara- 
Difficult Totally Relatively 
Poor 
tive 2 Uneven uneven uniform*** 
No gloss 
______________________________________