CN109620756A - A kind of organosilicon composite powder used for cosmetic and preparation method thereof - Google Patents
A kind of organosilicon composite powder used for cosmetic and preparation method thereof Download PDFInfo
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/895—Polysiloxanes containing silicon bound to unsaturated aliphatic groups, e.g. vinyl dimethicone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/23—Sulfur; Selenium; Tellurium; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/25—Silicon; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/27—Zinc; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/29—Titanium; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
- A61K8/84—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions otherwise than those involving only carbon-carbon unsaturated bonds
- A61K8/89—Polysiloxanes
- A61K8/891—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone
- A61K8/894—Polysiloxanes saturated, e.g. dimethicone, phenyl trimethicone, C24-C28 methicone or stearyl dimethicone modified by a polyoxyalkylene group, e.g. cetyl dimethicone copolyol
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q17/00—Barrier preparations; Preparations brought into direct contact with the skin for affording protection against external influences, e.g. sunlight, X-rays or other harmful rays, corrosive materials, bacteria or insect stings
- A61Q17/04—Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
- A61K2800/41—Particular ingredients further characterized by their size
- A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns
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Abstract
The present invention provides a kind of organosilicon composite powder used for cosmetic, which is characterized in that is made by following component: containing hydrogen silicone oil, unsaturated compound, catalyst, inorganic nanometer powder, organosilicon spherical shape resin-oatmeal and organosilicone spreading agent.The average particle size range of the composite granule is 3-100 micron, and the composite granule is multilayer package structure: organosilicon spherical shape resin-oatmeal package organic silicon sphere shape rubber powder, evenly dispersed inorganic nanometer-powder in organosilicon spherical shape rubber powder.Nano-powder will not occur again in cosmetics processing or use to reunite and influence skin sense and ultraviolet ray preventing effect, free radical will not be conducted with skin contact to skin, the effect of improving nanometer physical sunscreen agent by whole technique for packing, its adverse effect to skin is eliminated simultaneously, does not stimulate skin mildly.
Description
Technical field
The invention belongs to organosilicon material technical fields, and in particular to a kind of organosilicon composite powder used for cosmetic and its system
Preparation Method.
Background technique
Organosilicone elastic microballoon powder the features such as dry velvet and is widely used in cosmetics, can be made due to good with oil absorption
Promote additive for skin sense；The method for preparing organosilicon elastic microsphere has patent report (such as US 4761454, US
4742142, US 4962165, US 6497894B1, US 8133586B2, CN103122070).
The patent disclosures such as US 4761454, US 4742142, US 4962165, US 6497894B1 prepare organosilicon bullet
The method of property microballoon is contained using a large amount of Small molecular surfactants (such as polyoxyethylene alkyl ether) as emulsifier
Vinyl silicone oil and containing hydrogen silicone oil form lotion, then addition-crosslinked obtain organosilicone elastic microballoon.These organosilicon microballoons are easy to
Reunite, more difficult dispersion in the application, and also these organosilicone elastic microsphere surfaces have all adsorbed a large amount of small molecule surface-active
Agent has certain irritation to be restricted it in the application of cosmetics.
Patent US 8133586B2 and CN103122070 etc. report surface coated with the organic of poly- organic group sesquioxyalkane
Silicon microballoon and preparation method thereof, these surfaces have excellent anti-agglomeration coated with the organosilicon microballoon of poly- organic group sesquioxyalkane
Property and dispersibility；Preparation method be first prepare organosilicon elastic microsphere with the method for above-mentioned patent (such as US 4761454), then
It is hydrolyzed in the presence of alkali and surfactant by silane coupling agent and deposits to Polyorganosilsesquioande on organosilicon microballoon；
This method is comparatively laborious, higher cost, and can equally bring Small molecular surfactant into, and unavoidably residual is pungent after drying
Smell.Patent US5948469 and US7648766B2 disclose preparation surface coated with silica, and titanium dioxide etc. is inorganic micro-
The method of the organosilicone elastic microballoon of grain, these methods also need previously prepared stable organosilicone elastic aqueous microsphere and dissipate
Liquid, then again by silica, the inorganic particles such as titanium dioxide are adsorbed on the surface thereof, and preparation method is relatively complicated, and
It is difficult to avoid that, using surfactant or other emulsion stabilizers, smell is not mild enough greatly.Other patent reports are by Pickering
(inorganic nanoparticles had not only played the role of Small molecular surfactant or other emulsion stabilizers but also can be coated in organosilicon lotion
Elastic microsphere surface) technology preparation surface coating inorganic nanoparticles elastic microsphere powder, there are powder dispersion flows not
The inorganic nanoparticles that good, powder surface retains have the drawbacks such as adverse effect to human skin.
Summary of the invention
The present invention provides a kind of novel organosilicon multifunctional composite powder used for cosmetic ends and preparation method thereof, utilize the system
Preparation Method directly can continuously prepare multi items, multi-functional organosilicon spherical shape composite micro-powder, gained organosilicon composite powder appearance
For uniform proper sphere shape, skin sense exquisiteness is soft and smooth, and powder dispersion flows are good, and odorlessness is non-stimulated, mildness and highly-safe, nothing
Need to repeatedly polymerize, without special manufacturing equipment, simple process, high production efficiency, manufacturing process is safe and environment-friendly, can stablize into
Row industrialized production.
The present invention realizes in the following ways: a kind of organosilicon composite powder used for cosmetic, includes following components: Silicon Containing Hydrogen
Oil, unsaturated compound, catalyst, inorganic nanometer powder, organosilicon spherical shape resin-oatmeal and organosilicone spreading agent；
The containing hydrogen silicone oil intramolecular has at least two si-h bond alkane, and hydrogen content is 0.01~1.5%；
The unsaturated compound is the dimethyl silicone polymer or α of vinyl there are two per molecule at least contains, ω-bis-
Ene compound, contents of ethylene are 0.1~3%；
The catalyst is the aqueous isopropanol or vinyl platinum network of the chloroplatinic acid of the catalyst for hydrosilylation
Close object, dosage is 1~100ppm (based on pt atom mass fraction)；
The inorganic nanometer powder is that silicon processing nano-titanium dioxide, silicon processing nano zine oxide or the silicon processing of oleophylic are received
Nano-barium sulfate etc., dosage are the 2~20% of all participation preparation process object weight total amounts；
The organosilicon spherical shape resin-oatmeal is polymethylsilsesquioxane spherical powder, and Average Particle Diameters are 0.5~10
Micron；
The organosilicone spreading agent is polyether modified silicon oil or polyglycerol-modified silicone oil, and dosage is prepared by all participations
The 0.1~0.6% of journey object weight total amount.
Preferably, the average particle size range of the composite granule is 3-100 microns.
Preferably, the composite granule is multilayer package structure: organosilicon spherical shape resin-oatmeal is wrapped up by containing hydrogen silicone oil, insatiable hunger
With organosilicon spherical shape rubber powder made of compound, polymerization catalyst, evenly dispersed nothing in the organosilicon spherical shape rubber powder
Machine nano powder.
The present invention also provides a kind of preparation methods of organosilicon composite powder used for cosmetic as described above, including following step
It is rapid:
(1) organosilicon spherical shape resin-oatmeal, organosilicone spreading agent and suitable quantity of water are added in reactor and are uniformly mixed, low speed
Stirring is configured to aqueous dispersions；
(2) after mixing by unsaturated compound, containing hydrogen silicone oil and inorganic nanometer powder, it is equal to add catalyst stirring
It is even, form organic silicon sphere shape rubber powder；
(3) (1) described aqueous dispersions are added in mixture obtained by (2) to be stirred, and pass through 1-5min at 30 DEG C or less
After homogeneous forms lotion, 60~100 DEG C are warming up to, reacts 2~6h, lotion is subjected to vacuum drying after reaction or is done by spraying
It is dry, obtain dry powder；
(4) dry powder obtained by step (3) is milled after dispersion, obtains used for cosmetic having after the screening of 100~200 mesh screens
Machine silicon composite multifunction spherical powder, 3-100 microns of average grain diameter.
Beneficial effects of the present invention:
The present invention is handed over using nano inorganic powder is dispersed with stirring in organic silicon rubber intermediate mixture in advance by catalysis
Connection, the inorganic nanometer powder of antiultraviolet is just evenly dispersed and be fixed in composite granule inner elastomeric silicon rubber body, is making up
Nano-powder will not occur again in product processing or use to reunite and influence skin sense and ultraviolet ray preventing effect, it will not be with skin contact
The effect of conducting free radical to skin, nanometer physical sunscreen agent improved by whole technique for packing, while it is eliminated to skin
Adverse effect, the present invention is evenly dispersed by nano-powder and is fixed in Spherical Powder of Silicone Rubber, eliminate nano-powder reunite
Caused by adverse effect.
The present invention uses small particle organosilicon spherical shape resin-oatmeal and micro organosilicone spreading agent, and dosage is only usual lotion
/ 10th of the used emulsion stabilizer of polymerization technique hereinafter, ingenious emulsion stabilizer of the compounding as emulsion polymerization process,
Organosilicon spherical shape resin-oatmeal is uniformly and intimately adsorbed on the extexine of composite granule after reaction, and it is multiple to assign silicon rubber elastic
The dispersion flows of powder are closed, while being interrupted the contact of the inorganic nanometer powder that is dispersed in internal elastomeric with outside again,
It effectively prevents the free radical of sun-proof middle generation from contacting skin, achieves many things at one stroke.
Multi-ply construction composite powder outer layer of the invention is uniformly wrapped up by micron-sized spherical silicones the tree powder body, effectively every
Contact from the free radical generated by nano sunlight screening powder photocatalyst with skin, negative work of the abatement nano grade inorganic sun-screening agent to skin
With, while improving the mobility, dispersibility and validity of composite granule.
Due to using micro organosilicone spreading agent as emulsion adjuvant, and it can pass through wash work after the completion of reaction
Skill is removed completely, and product is remained without usual emulsifier smell, this composite granule is mildly non-stimulated, and skin sense is soft and smooth, fully meeting
Cosmetic is for raw material high-performance and safety, mild requirement.
Present invention process is advanced ingenious, directly can continuously prepare multi items, multi-functional organosilicon spherical shape composite micro-powder, raw
Produce processing efficient, safe and environment-friendly, large-scale production stability height.
Detailed description of the invention
Fig. 1 is that the nanoscales physical sunscreen agent such as nano-titanium dioxide, zinc oxide, barium sulfate is evenly dispersed and be fixed on
In machine silicon spherical rubber micro mist, adverse effect schematic diagram caused by nano-powder is reunited is eliminated.
Fig. 2 is the micro- Electronic Speculum phenogram of organosilicon composite powder of the present invention.
Fig. 3 is the micro- Electronic Speculum phenogram (× 700) of invention organosilicon composite powder.
Fig. 4 is the micro- Electronic Speculum phenogram (× 6500) of invention organosilicon composite powder
Specific embodiment
For more concise displaying technical solution of the present invention, objects and advantages, combined with specific embodiments below
And attached drawing is described in further detail the present invention.
Embodiment 1
(1), by 9.5g organosilicon spherical shape resin-oatmeal (average grain diameter is 1.5 microns) and 0.32g polyether modified silicon oil (HLB
Value is 10~15) it is added in 49.8g water and stirs at low speed and be configured to aqueous dispersions；
(2), the vinyl silicone oil (contents of ethylene 1.1%) and 3.2g viscosity 60cSt for being 100cSt by 26.8g viscosity
Containing hydrogen silicone oil (hydrogen content 0.6%) and the processing nano-titanium dioxide mixing of 10g silicon, add 40ppm catalyst (by pt atom matter
Measure score meter), it stirs evenly, forms organic silicon sphere shape rubber powder；
(3), (1) described aqueous dispersions are added in (2) described mixture to be stirred, and in 30 DEG C of following temperature homogeneous shapes
At lotion, 60~100 DEG C are warming up to, reacts 2~6 hours, lotion is dried in vacuo or is spray-dried after reaction；
(4), gained dry powder is milled after dispersion, and it is compound to obtain organosilicon used for cosmetic after the screening of 100~200 mesh screens
Multifunctional sphere powder, 10-30 microns of average grain diameter.
Embodiment 2
(1), by 14.6g organosilicon spherical shape resin-oatmeal (average grain diameter is 1.5 microns) and 0.15g polyether modified silicon oil (HLB
Value is 10~15) it is added in 56.8g water and stirs at low speed and be configured to aqueous dispersions；
(2), the vinyl silicone oil (contents of ethylene 0.75%) and 5.4g viscosity 60cSt for being 200cSt by 14.2g viscosity
Containing hydrogen silicone oil (hydrogen content 0.6%) and the processing nano-titanium dioxide mixing of 8g silicon, add 50ppm catalyst (by pt atom matter
Measure score meter), it stirs evenly, forms organic silicon sphere shape rubber powder；
(3), (1) described aqueous dispersions are added in (2) described mixture to be stirred, and in 30 DEG C of following temperature homogeneous shapes
At lotion, 60~100 DEG C are warming up to, reacts 2~6 hours, lotion is dried in vacuo or is spray-dried after reaction；
(4), gained dry powder is milled after dispersion, and it is compound to obtain organosilicon used for cosmetic after the screening of 100~200 mesh screens
Multifunctional sphere powder, 10-30 microns of average grain diameter.
Embodiment 3
(1), by 11g organosilicon spherical shape resin-oatmeal (average grain diameter be 2 microns) and 0.38g polyether modified silicon oil, (HLB value is
10~15) it is added in 54.6g water to stir at low speed and is configured to aqueous dispersions；
(2), the vinyl silicone oil (contents of ethylene 0.75%) and 2.3g viscosity for being 200cSt by 25.7g viscosity
300cSt containing hydrogen silicone oil (hydrogen content 0.25%) and the processing nano zine oxide mixing of 6g silicon, add 50ppm catalyst (by platinum
Atomic mass score meter), it stirs evenly, forms organic silicon sphere shape rubber powder；
(3), (1) described aqueous dispersions are added in (2) described mixture to be stirred, and in 30 DEG C of following temperature homogeneous shapes
At lotion, 60~100 DEG C are warming up to, reacts 2~6 hours, lotion is dried in vacuo or is spray-dried after reaction；
(4), gained dry powder is milled after dispersion, and it is compound to obtain organosilicon used for cosmetic after the screening of 100~200 mesh screens
Multifunctional sphere powder, 30-50 microns of average grain diameter.
Embodiment 4
(1), by 13.6g organosilicon spherical shape resin-oatmeal (average grain diameter is 5 microns) and 0.35g polyether modified silicon oil (HLB value
It is 10~15) it is added in 51.8g water and stirs at low speed and be configured to aqueous dispersions；
(2), the vinyl silicone oil (contents of ethylene 0.75%) and 8.6g viscosity 60cSt for being 200cSt by 21.4g viscosity
Containing hydrogen silicone oil (hydrogen content 0.6%) and the processing nano-titanium dioxide mixing of 5g silicon, add 30ppm catalyst (by pt atom matter
Measure score meter), it stirs evenly, forms organic silicon sphere shape rubber powder；
(3), (1) described aqueous dispersions are added in (2) described mixture to be stirred, and in 30 DEG C of following temperature homogeneous shapes
At lotion, 60~100 DEG C are warming up to, reacts 2~6 hours, lotion is dried in vacuo or is spray-dried after reaction；
(4), gained dry powder is milled after dispersion, and it is compound to obtain organosilicon used for cosmetic after the screening of 100~200 mesh screens
Multifunctional sphere powder, 20-40 microns of average grain diameter.
Embodiment 5
(1), by 13.2g organosilicon spherical shape resin-oatmeal (average grain diameter is 3.5 microns) and 0.25g polyether modified silicon oil (HLB
Value is 10~15) it is added in 56.8g water and stirs at low speed and be configured to aqueous dispersions；
(2), the vinyl silicone oil (contents of ethylene 0.26%) and 2.2g viscosity for being 1500cSt by 23.8g viscosity
300cSt containing hydrogen silicone oil (hydrogen content 0.25%) and the processing nano zine oxide mixing of 4g silicon, add 40ppm catalyst (by platinum
Atomic mass score meter), it stirs evenly, forms organic silicon sphere shape rubber powder；
(3), (1) described aqueous dispersions are added in (2) described mixture to be stirred, and in 30 DEG C of following temperature homogeneous shapes
At lotion, 60~100 DEG C are warming up to, reacts 2~6 hours, lotion is dried in vacuo or is spray-dried after reaction；
(4), gained dry powder is milled after dispersion, and it is compound to obtain organosilicon used for cosmetic after the screening of 100~200 mesh screens
Multifunctional sphere powder, 40-90 microns of average grain diameter.
Composite powder prepared by embodiment 1-5 carries out recruitment evaluation
1, the organosilicon composite powder for preparing the embodiment of the present invention 1-5 carries out Physico-chemical tests, and the results are shown in Table 1:
Table 1: the organosilicon composite powder achievement data of embodiment 1-5 preparation
2, ultraviolet absorptivity is assessed
It is organic according to embodiment 1 to 5 using UV/VIS spectrophotometer model V-550 (JASCO, Japan) following measurement
The measurement of the UV wavelength absorbance of silicon composite powder.As reference material, using commercially available compound containing silica and titanium dioxide
Powder (not containing organosilicon spherical shape resin-oatmeal and organosilicone spreading agent), in this composite powder, fine titanium oxide particle is distributed in
In Solid silica particles, the granularity of the composite powder of reference material is 4 microns.
Table 2: the UV absorbance value of embodiment 1-5 and reference examples
As a result as shown in Table 2, due to titanium dioxide or Zinc oxide nanoparticle is easy to form is difficult to show good UV and inhales
The aggregation of receipts, but it has been surprisingly observed that, relatively great amount of titanium dioxide or zinc-oxide nano are used in Examples 1 and 2
Particle, ultraviolet light absorption angle value are still higher than embodiment 3,4,5, illustrate relatively great amount of titanium dioxide or Zinc oxide nanoparticle
There is no formation aggregations, and are evenly dispersed in organosilicon composite granule, and are fixed package wherein.Through with control group
Comparing, its ultraviolet light absorption angle value of the commercially available composite powder not containing organosilicon spherical shape resin-oatmeal and organosilicone spreading agent is lower, because
This cannot play effective anti-sunlight function.
3, safety evaluation
Human skin pastes spot experiment
Tested crowd's number: 100 people；Age: between 20-50 years old；Health status: skin health of being tried, no skin disease
Allergies meet subject and volunteer inclusion criteria.5 groups are divided into, every group of 20 people.
Patch spot method: selecting qualified spot tester, with closed patch experiment method, by tested material about 0.020g~
0.025g is applied in spot tester, and external application special adhesive tape is covered on subject back, and tested material is removed after 24 hours, after removing respectively
0.5, observation dermoreaction in 6,12,24,48 hours, records its knot according to dermoreaction grade scale in " cosmetics health specification "
Fruit.
Test result:
Human skin patch test result is shown: each group subject passes through the composite powder spot of the invention of embodiment 1-5
Patch test, wherein 0 skin adverse reaction occurs, illustrates described answer in observation dermoreaction in 0.5,6,12,24,48 hour
Powder is closed using safe, it is mildly non-stimulated to human body object.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (4)
1. a kind of organosilicon composite powder used for cosmetic, which is characterized in that include following components: containing hydrogen silicone oil, unsaturated chemical combination
Object, catalyst, inorganic nanometer powder, organosilicon spherical shape resin-oatmeal and organosilicone spreading agent；
Its intramolecular of the containing hydrogen silicone oil has at least two si-h bond alkane, and hydrogen content is 0.01~1.5%；
The unsaturated compound is the dimethyl silicone polymer or α of vinyl there are two per molecule at least contains, bis- alkylene of ω-
Object is closed, the contents of ethylene is 0.1~3%；
The catalyst is the aqueous isopropanol or vinyl platinum complex of chloroplatinic acid, based on pt atom mass fraction, dosage
For 1~100ppm；
The inorganic nanometer powder is that the silicon of oleophylic handles nano-titanium dioxide, silicon handles nano zine oxide or silicon handles nano-sulfur
Sour barium, dosage are the 2~20% of all participation preparation process object weight total amounts；
The organosilicon spherical shape resin-oatmeal is polymethylsilsesquioxane spherical powder, and Average Particle Diameters are 0.5~10 micron；
The organosilicone spreading agent is polyether modified silicon oil or polyglycerol-modified silicone oil, and dosage is all participation preparation process objects
The 0.1~0.6% of weight total amount.
2. such as claim 1 organosilicon composite powder used for cosmetic, which is characterized in that the average particle size range of the composite powder
It is 3-100 microns.
3. such as claims 1 or 2 organosilicon composite powder used for cosmetic, which is characterized in that the composite granule is multilayer package
Structure: the organosilicon spherical shape resin-oatmeal wraps up the organic silicon sphere as made of containing hydrogen silicone oil, unsaturated compound, polymerization catalyst
Shape rubber powder, evenly dispersed inorganic nanometer-powder in the organosilicon spherical shape rubber powder.
4. a kind of preparation method of organosilicon composite powder used for cosmetic as described in claim any one of 1-3, including following step
It is rapid:
(1) organosilicon spherical shape resin-oatmeal, organosilicone spreading agent and suitable quantity of water are added in reactor and are uniformly mixed, stirred at low speed
It is configured to aqueous dispersions；
(2) after mixing by unsaturated compound, containing hydrogen silicone oil and inorganic nanometer powder, catalyst is added to stir evenly,
Form organic silicon sphere shape rubber powder；
(3) (1) described aqueous dispersions are added in mixture obtained by (2) to be stirred, and pass through 1-5min homogeneous at 30 DEG C or less
After forming lotion, 60~100 DEG C are warming up to, 2~6h is reacted, lotion is dried in vacuo or is spray-dried after reaction,
Obtain dry powder；
(4) dry powder obtained by step (3) is milled after dispersion, obtains organosilicon used for cosmetic after the screening of 100~200 mesh screens
Composite multifunction spherical powder, 3-100 microns of average grain diameter.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112545907A (en) * | 2020-12-16 | 2021-03-26 | 江南大学 | Preparation method of wax beads with embedded chemical sun-screening agent and surface loaded with nano titanium dioxide and application of wax beads in sunscreen cream |
| CN114557917A (en) * | 2022-03-30 | 2022-05-31 | 彭氏(惠州)实业发展有限公司 | Sunscreen cosmetic composition |
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