CN111603402A

CN111603402A - Silicon powder composite gel with oil control, protection and moistening effects and preparation method thereof

Info

Publication number: CN111603402A
Application number: CN202010310022.3A
Authority: CN
Inventors: 刘斌
Original assignee: Guangdong Hanpu Technology Co ltd
Current assignee: Guangdong Hanpu Technology Co ltd
Priority date: 2020-04-20
Filing date: 2020-04-20
Publication date: 2020-09-01

Abstract

The invention relates to the technical field of organic silicon elastomers, in particular to silicon powder composite gel with oil control, protection and moistening effects and a preparation method thereof. The preparation method comprises the following raw materials in parts by weight: 15-25 parts of polydimethylsiloxane, 15-25 parts of phenyl silicone oil, 25-35 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 15-25 parts of polysilsesquioxane, 5-15 parts of regulator and 1-5 parts of plasticizer. The silicon powder composite gel with the oil control, protection and moistening effects has lasting silky skin touch feeling, and has good repairing capability on lip problems such as dry lines, dryness, roughness and the like when being used in lipstick and other systems; the lip gloss improver can obviously enhance the lip elasticity, smooth wrinkles, improve the skin roughness, improve the lip gloss, obviously repair skin barriers, and moisten and moisturize the lips.

Description

Silicon powder composite gel with oil control, protection and moistening effects and preparation method thereof

Technical Field

The invention relates to the field of silicon powder composite application, in particular to silicon powder composite gel with oil control, protection and moistening effects and a preparation method thereof.

Background

The silicone elastomer refers to silicon-containing macromolecules with different network crosslinking structures. According to different states, the method can be divided into the following steps: silicone elastomer powder, silicone elastomer emulsion, silicone elastomer gel. The mixture of dimethicone crosspolymer and diluent, known as silicone elastomer gel, is a mixture of silicone crosspolymer with a three-dimensional network structure and a small molecule solvent. The organic silicon elastomer gel can endow the skin with unique skin feeling like velvet, and therefore, the organic silicon elastomer gel is widely applied to the fields of daily cosmetics such as skin care, color cosmetics, sweat removal agents and the like. However, the currently marketed silicone elastomer gels have poor permeability, are prone to sticky feel, are not smooth and refreshing, and do not have repairing and anti-inflammatory effects.

Disclosure of Invention

In order to solve the problems, the invention provides silicon powder composite gel with oil control, protection and moistening effects in a first aspect, which comprises the following preparation raw materials in parts by weight: 15-25 parts of polydimethylsiloxane, 15-25 parts of phenyl silicone oil, 25-35 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 15-25 parts of polysilsesquioxane, 5-15 parts of regulator and 1-5 parts of plasticizer.

As a preferred embodiment, the polydimethylsiloxane has a viscosity of from 0.65 to 100 mPas at 25 ℃.

As a preferable technical scheme, the phenyl silicone oil is selected from one or more of diphenyl polydimethylsiloxane, diphenyl siloxy phenyl trimethicone, phenyl trimethicone and phenyl polydimethylsiloxane.

As a preferred technical scheme, the polysilsesquioxane is polymethylsilsesquioxane and/or polyphenylsilsesquioxane.

As a preferred technical scheme, the polysilsesquioxane is polymethylsilsesquioxane.

As a preferred technical scheme, the regulator is silica and/or mica.

As a preferred technical scheme, the silica is dimethyl silicon alkylated silica.

As a preferred technical scheme, the specific surface area of the dimethyl silicon alkylated silica is 150-350 ml/g.

As a preferred technical scheme, the plasticizer is polyethylene and/or synthetic wax.

The second aspect of the invention provides a preparation method of silicon powder composite gel with oil control, protection and moistening effects, which comprises the following steps: mixing the preparation raw materials according to the formula amount, and shearing by a high-speed shearing machine to obtain the composite material.

Has the advantages that: the silicon powder composite gel with the oil control, protection and moistening effects has the effects of protecting ultraviolet medium wave (UVB) from harms to human bodies, protecting ultraviolet long wave (UVA), protecting environment and avoiding chemical allergy to the skin of the human bodies. The raw materials for preparing the silicon powder composite gel are polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, polysilsesquioxane and silica which are compounded for use, so that the damage of ultraviolet rays to skin can be shielded, and the silicon powder composite gel also has an oil control protection effect, wherein the polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer has good effects of covering fine lines, smoothing silks and lubricating the skin, the polysilsesquioxane can play a substantial basic function of oil control and light diffusion, the silica in the raw material components has the effects of strong ultraviolet reflection capability and good stability, and the silica is not decomposed or discolored after being irradiated by the ultraviolet rays and also cannot chemically react with other components in the formula; the inventor finds that the oil control and oil absorption effects of the polydimethylsiloxane/vinyl polydimethylsiloxane crosslinked polymer, the polysilsesquioxane and the silica on the skin can achieve the excellent synergistic effect by compounding and using the polydimethylsiloxane/vinyl polydimethylsiloxane crosslinked polymer, the polysilsesquioxane and the silica; in addition, the silicon powder composite gel has lasting silky skin touch feeling, and has good repairing capability on lip problems such as dry lines, dryness, roughness and the like when being used in a lipstick system and the like; the lip elasticity can be obviously enhanced, wrinkles can be smoothed, the skin roughness can be improved, the lip gloss can be improved, and the skin barrier can be obviously repaired.

Detailed Description

The disclosure may be understood more readily by reference to the following detailed description of preferred embodiments of the invention and the examples included therein. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In case of conflict, the present specification, including definitions, will control.

The term "prepared from …" as used herein is synonymous with "including". As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, are intended to cover a non-exclusive inclusion. For example, a composition, process, method, article, or apparatus that comprises a list of elements is not necessarily limited to only those elements but may include other elements not expressly listed or inherent to such composition, process, method, article, or apparatus.

The conjunction "consisting of …" excludes any unspecified elements, steps or components. If used in a claim, the phrase will render the claim closed except for the materials described, except for the conventional impurities associated therewith. When the phrase "consisting of …" appears in a clause of the subject matter of the claims rather than immediately after the subject matter, it defines only the elements described in the clause; other elements are not excluded from the claims as a whole.

When an amount, concentration, or other value or parameter is expressed as a range, preferred range, or as a range of upper preferable values and lower preferable values, this is to be understood as specifically disclosing all ranges formed from any pair of any upper range limit or preferred value and any lower range limit or preferred value, regardless of whether ranges are separately disclosed. For example, when a range of "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2 and 4 to 5", "1 to 3 and 5", and the like. When a range of values is described herein, unless otherwise stated, the range is intended to include the endpoints thereof and all integers and fractions within the range.

The singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. "optional" or "any" means that the subsequently described event or events may or may not occur, and that the description includes instances where the event occurs and instances where it does not.

Approximating language, as used herein in the specification and claims, is intended to modify a quantity, such that the invention is not limited to the specific quantity, but includes portions that are literally received by modifying or otherwise modifying such quantity without substantially changing the basic function to which it is related. Accordingly, the use of "about" to modify a numerical value means that the invention is not limited to the precise value. In some instances, the approximating language may correspond to the precision of an instrument for measuring the value. In the present description and claims, range limitations may be combined and/or interchanged, including all sub-ranges contained therein if not otherwise stated.

In addition, the indefinite articles "a" and "an" preceding an element or component of the invention are not intended to limit the number requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be read to include one or at least one, and the singular form of an element or component also includes the plural unless the stated number clearly indicates that the singular form is intended.

In order to solve the technical problems, the invention provides silicon powder composite gel with oil control, protection and moistening effects in a first aspect, which comprises the following preparation raw materials in parts by weight: 15-25 parts of polydimethylsiloxane, 15-25 parts of phenyl silicone oil, 25-35 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 15-25 parts of polysilsesquioxane, 5-15 parts of regulator and 1-5 parts of plasticizer.

In a preferred embodiment, the silicon powder composite gel with the oil control, protection and moistening effects comprises the following preparation raw materials in parts by weight: 20 parts of polydimethylsiloxane, 20 parts of phenyl silicone oil, 30 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 20 parts of polysilsesquioxane, 8 parts of regulator and 2 parts of plasticizer.

Polydimethylsiloxane

The polydimethylsiloxane is transparent, tasteless, non-sticky and non-irritant transparent liquid. Can be used as basic oil phase component or temporary carrier of active substance, and has improved spreadability and easy application. It also acts as a low viscosity silicone which further reduces the slimy feel of the formulation, also reduces surface tension, aids spreading and promotes uniform dispersion of the solid pigment.

In a preferred embodiment, the polydimethylsiloxane has a viscosity of from 0.65 to 100 mPas at 25 ℃.

In a more preferred embodiment, the polydimethylsiloxane has a viscosity of from 1 to 50 mPas at 25 ℃.

In a most preferred embodiment, the polydimethylsiloxane is purchased from PMX200 of Dow Corning and has a viscosity of 20 mPa.s at 25 ℃.

Phenyl silicone oil

In one embodiment, the phenyl silicone oil is selected from one or more of diphenyl polydimethylsiloxane, diphenyl siloxy phenyl trimethicone, phenyl polydimethylsiloxane.

In a preferred embodiment, the phenyl silicone oil is phenyl trimethicone.

The phenyl trimethicone is purchased from Aiyuta silicone oil, Inc., Anhui, and is under the trademark IOTA-255.

The phenyl trimethicone has good film forming property and glossiness. Has good permeability to skin, good skin feeling after use, and increased skin softness.

Polydimethylsiloxane/vinyl polydimethylsiloxane crosspolymers

The polydimethylsiloxane cross-linked polymer is mainly applied to nursing cosmetics such as skin care, sun protection, color cosmetics and the like, is lasting and refreshing, effectively absorbs sebum and assists in covering wrinkles.

The polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer of the present invention was purchased from ZP-701 from Guangzhou Fupu chemical Co.

Polysilsesquioxanes

In one embodiment, the polysilsesquioxane is a polymethylsilsesquioxane and/or a polyphenylsilsesquioxane.

In a preferred embodiment, the polysilsesquioxane is a polymethylsilsesquioxane.

In a preferred embodiment, the polymethylsilsesquioxane is a spherical fine powder having a particle size of 5 μm.

The polymethylsilsesquioxane was purchased from ZPF-509, a chemical industry in the state of Europe, and had a particle size of 5 microns.

The polymethylsilsesquioxane is insoluble powder, brings the effect of softening the focus or blurring wrinkles, and is used as a skin feel modifier to generate smooth, soft and non-sticky skin feel.

Conditioning agents

In one embodiment, the modifier is silica and/or mica.

In a preferred embodiment, the conditioning agent is silica.

In a more preferred embodiment, the silica is a silica dimethyl silicon alkylate.

In a preferred embodiment, the dimethylsilyl alkylated silica has a specific surface area of 150-350ml/g μm.

In a more preferred embodiment, the dimethylsilyl alkylated silica has a specific surface area of 280 μm.

The silica disilylated in accordance with the invention has a major component of SiO₂Has hydrophilicity; the surface of the silica is treated with hydroxydimethylsiloxane, and then the silica surface is condensed with silicon hydroxyl groups such as hydroxydimethylsiloxane, thereby imparting hydrophobicity or oleophilic property to the dimethylsilylated silica. It has effects in caring skin, controlling viscosity, and stabilizing liquid phase system. The silica is preferably spherical microspheres with high specific surface area of 280ml/g, has a rolling ball effect and a better absorption and protection effect, so that the product has silky texture and smoothness, and the coloring rate of the pigment can be improved.

The dimethylsilylated silica was purchased from wacker chemical (china) ltd.

Plastic forming agent

In one embodiment, the plasticizer is polyethylene and/or synthetic wax.

In a preferred embodiment, the plasticizer is polyethylene.

The polyethylene was purchased from SP-400 of SP company.

The polyethylene provided by the invention has excellent thickening capability, stabilizes the system and improves the stability of the system.

The second aspect of the invention provides a preparation method of silicon powder composite gel with oil control, protection and moistening effects, which comprises the following steps: mixing the preparation raw materials according to the formula ratio at 70-80 ℃, and shearing by a high-speed shearing machine to obtain the composite material.

The mechanism is explained as follows: the inventor finds that the phenyl silicone oil and the polymethylsilsesquioxane form a synergistic effect, the phenyl trimethicone has light and soft skin feel and high-refractive-index grease, is smooth but not greasy, and can effectively improve the viscosity and brightness of the product; the polymethylsilsesquioxane has good smoothness, is beneficial to keeping good color of the product, and further improves the effects of moistening, refreshing and no stickiness. The polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer and the polydimethylsiloxane form mutual matching, and the moisturizing, refreshing and non-sticky feeling is improved. The dimethylsilyl silica can form a three-dimensional network structure stabilizing system while effectively thickening the system, and can stabilize the shape of the product for a long time. The polyethylene has a relatively balanced dispersion effect and bonding effect, and the purpose of controlling the viscosity of a liquid phase system is achieved, so that the components adopted in the application can be fully dispersed, and the product molding is facilitated.

Examples

In order to better understand the above technical solutions, the following detailed descriptions will be provided with reference to specific embodiments. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention. In addition, the starting materials used are all commercially available, unless otherwise specified.

Example 1

Embodiment 1 provides a silica powder composite gel with oil control, protection and moistening effects, which comprises the following preparation raw materials in parts by weight: 20 parts of polydimethylsiloxane, 20 parts of phenyl silicone oil, 30 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 20 parts of polysilsesquioxane, 8 parts of regulator and 2 parts of plasticizer.

The polydimethylsiloxane is PMX200 from Dow Corning and has a viscosity of 20 mPa.s at 25 ℃.

The phenyl silicone oil is phenyl trimethicone.

The phenyl trimethicone is IOTA-255 of Anhui Eyota Silicone oil Co.

The polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer is ZP-701 of Guangzhou ortho-chemical company Limited.

The polysilsesquioxane is polymethylsilsesquioxane.

The polymethylsilsesquioxane is spherical micro powder with the particle size of 5 mu m.

The polymethylsilsesquioxane is ZPF-509 in the Guangzhou chemical industry.

The regulator is silica.

The silica is dimethylsilyl alkylated silica.

The specific surface area of the dimethylsilyl silica was 280. mu.m.

The dimethylsilylated silica is Wacker chemical (China) Inc.

The plasticizer is polyethylene.

The polyethylene is SP-400 from SP company.

The preparation method of the silicon powder composite gel with the oil control, protection and moistening effects comprises the following steps: mixing the preparation raw materials according to the formula amount at 75 ℃, and shearing by a high-speed shearing machine to obtain the composite material.

Example 2

Example 2 is essentially the same as example 1, except that it comprises the following preparation raw materials in parts by weight: 15 parts of polydimethylsiloxane, 15 parts of phenyl silicone oil, 25 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 15 parts of polysilsesquioxane, 5 parts of regulator and 1 part of plasticizer.

Example 3

Example 3 is essentially the same as example 1, except that it comprises the following preparation raw materials in parts by weight: 25 parts of polydimethylsiloxane, 25 parts of phenyl silicone oil, 35 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 25 parts of polysilsesquioxane, 15 parts of regulator and 5 parts of plasticizer.

Comparative example 1

Comparative example 1 is essentially the same as example 1, except that the dimethylsilyl alkylated silica has a specific surface area of 100 μm.

Comparative example 2

Comparative example 2 is substantially the same as example 1 except that it comprises the following preparation raw materials in parts by weight: 12 parts of polydimethylsiloxane, 5 parts of phenyl silicone oil, 13 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 3 parts of regulator and 15 parts of plasticizer.

The foregoing examples are merely illustrative and are provided to illustrate some of the features of the present disclosure. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. And that advances in science and technology will result in possible equivalents or sub-substitutes not currently contemplated for reasons of inaccuracy in language representation, and such changes should also be construed where possible to be covered by the appended claims.

Evaluation of Performance

Experience feeling test:

the silicon powder composite gel with oil control, protection and moistening functions in the examples 1-3 and the comparative examples 1-2 is added into a formula of a commercial lipstick, so as to obtain a lipstick for testing.

Selecting 10 volunteers to coat the lip with the lipstick for testing, and collecting experience feedback information: moistening degree and lip wrinkle coverage after smearing. Sensory evaluation was performed on each item in 1-5 points, with 1-very poor, 2-poor, 3-normal, 4-good, and 5-good. The test results are reported below.

TABLE 1 results recorded for examples 1-3 and comparative examples 1-2

Test sample	Moistening degree	Coverage of lip lines
			Example 1	5	5
Example 2	4.6	4.8
			Example 3	4.8	4.9
Comparative example 1	4.0	4.3
			Comparative example 2	3.6	3.1

The foregoing examples are merely illustrative and serve to explain some of the features of the method of the present invention. The appended claims are intended to claim as broad a scope as is contemplated, and the examples presented herein are merely illustrative of selected implementations in accordance with all possible combinations of examples. Accordingly, it is applicants' intention that the appended claims are not to be limited by the choice of examples illustrating features of the invention. Also, where numerical ranges are used in the claims, subranges therein are included, and variations in these ranges are also to be construed as possible being covered by the appended claims.

Claims

1. The silicon powder composite gel with the oil control, protection and moistening effects is characterized by comprising the following preparation raw materials in parts by weight: 15-25 parts of polydimethylsiloxane, 15-25 parts of phenyl silicone oil, 25-35 parts of polydimethylsiloxane/vinyl polydimethylsiloxane cross-linked polymer, 15-25 parts of polysilsesquioxane, 5-15 parts of regulator and 1-5 parts of plasticizer.

2. The silicon powder composite gel with the oil-control, protective and moisturizing effects as claimed in claim 1, wherein the viscosity of the polydimethylsiloxane is 0.65-100 mPa-s.

3. The silicon powder composite gel with the oil-control, protective and moisturizing effects as claimed in claim 1, wherein the phenyl silicone oil is selected from one or more of diphenyl polydimethylsiloxane, diphenyl siloxy phenyl trimethicone, phenyl trimethicone and phenyl polydimethylsiloxane.

4. The silicon powder composite gel with the oil-control, protective and moisturizing effects as claimed in claim 1, wherein the polysilsesquioxane is polymethylsilsesquioxane and/or polyphenylsilsesquioxane.

5. The silicon powder composite gel with oil-control, protective and moisturizing effects as claimed in claim 4, wherein the polysilsesquioxane is polymethylsilsesquioxane.

6. The silicon powder composite gel with the oil-control protection and moistening effects as claimed in claim 1, wherein the regulator is silica and/or mica.

7. The silicon powder composite gel with the functions of controlling oil, protecting and moistening as claimed in claim 6, wherein the silica is silica dimethyl silicon alkylate.

8. The silicon powder composite gel with the oil-control protection and moistening effects as claimed in claim 7, wherein the silica dimethyl silylate has a specific surface area of 150-350ml/g μm.

9. The silicon powder composite gel with the oil-control, protective and moisturizing effects as claimed in claim 1, wherein the plasticizer is polyethylene and/or synthetic wax.

10. The preparation method of the silicon powder composite gel with the oil control, protection and moistening effects according to any one of claims 2 to 9, characterized by comprising the following steps: mixing the preparation raw materials according to the formula amount, and shearing by a high-speed shearing machine to obtain the composite material.