# US 2026/0034036 A1 · Antibacterial and sun-protective powdered solid compact composition with decorative elements and preparation method thereof

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2026/0034036 A1
- Document ID: US20260034036A1
- Status: Published application
- Kind: A1
- Application number: 19/355,993
- Filed: 2025-10-10
- Published: 2026-02-05
- Earliest claimed: 2023-04-06
- Assignees: Cosbe Laboratory Inc.
- Applicants: Cosbe Laboratory Inc.
- Inventors: Huen OR; Songwu ZHENG; Liepeng ZHANG; Xiazhi HUANG; Shanzhao ZHUANG
- Web page: https://patentgrep.com/patent/US20260034036A1

## CPC

- A61K 8/26: Aluminium; Compounds thereof
- A61K 8/022: {Powders; Compacted Powders}
- A61K 8/19: containing inorganic ingredients
- A61K 8/25: Silicon; Compounds thereof
- A61K 8/27: Zinc; Compounds thereof
- A61K 8/345: {containing more than one hydroxy group}
- A61K 8/361: {Carboxylic acids having more than seven carbon atoms in an unbroken chain; Salts or anhydrides thereof}
- A61K 8/368: with carboxyl groups directly bound to carbon atoms of aromatic rings
- A61K 8/37: Esters of carboxylic acids
- A61K 8/44: Aminocarboxylic acids or derivatives thereof, e.g. aminocarboxylic acids containing sulfur; Salts; Esters or N-acylated derivatives thereof
- A61K 8/55: Phosphorus compounds
- A61K 8/732: {Starch; Amylose; Amylopectin; Derivatives thereof}
- A61K 8/8111: {Homopolymers or copolymers of aliphatic olefines, e.g. polyethylene, polyisobutene; Compositions of derivatives of such polymers}
- A61K 8/8123: {Compositions of homopolymers or copolymers of compounds having one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers, e.g. PVC, PTFE}
- A61K 8/8152: {Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers}
- A61K 8/88: Polyamides
- A61K 8/89: Polysiloxanes
- A61K 8/9789: Magnoliopsida [dicotyledons]
- A61K 8/9794: Liliopsida [monocotyledons]
- A61Q 1/12: Face or body powders for grooming, adorning or absorbing
- A61Q 17/005: {Antimicrobial preparations}
- A61Q 17/04: Topical preparations for affording protection against sunlight or other radiation; Topical sun tanning preparations
- A61K 2800/412: Microsized, i.e. having sizes between 0.1 and 100 microns
- A61K 2800/87: Application Devices; Containers; Packaging
- Y02A 50/30: Against vector-borne diseases, e.g. mosquito-borne, fly-borne, tick-borne or waterborne diseases whose impact is exacerbated by climate change
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- Y02A: TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE

## Abstract

An antibacterial and sun-protective powdered solid compact composition with decorative elements, consisting of the following raw materials in percentage by weight: 15% to 25% of aluminum starch octenylsuccinate and/or calcium starch octenylsuccinate; 45% to 65% of a carrier powder; 1% to 10% of an ultraviolet protective agent; 0.1% to 0.5% of an antibacterial agent; 1% to 5% of a non-expandable polymer powder; 5% to 15% of an viscous fluid skin-feel modifier; 0.1% to 7.5% of a plant extract, wherein the solid raw materials have a particle size of 5-50 μm, and the raw materials are thoroughly mixed and compressed to form a powdered solid compact composition with a density of 8-9 g/cm3. The manufacturing process comprising pre-mixing, blending, pulverizing, standing, and compacting under appropriate pressure enables reduced energy consumption and effectively mitigates safety hazards caused by certain flammable materials during production.

## Claims

### Claim 1

An antibacterial and sun-protective powdered solid compact composition with decorative elements, characterized by comprising the following raw materials in percentage by weight:
Aluminum starch octenylsuccinate and/or calcium starch octenylsuccinate: 15%-25%;
Carrier powder: 45%-65%;
Ultraviolet protective agent: 1%-10%;
Antibacterial agent: 0.1%-0.5%;
Non-expandable polymer powder: 1%-5%;
Viscous fluid skin-feel modifier: 5%-15%;
Plant extract: 0.1%-7.5%;
wherein:
the carrier powder is one or a mixture of mica, kaolin, silica, white clay, bentonite, magnesium stearate, and aluminum magnesium silicate;
the non-expandable polymer powder is one or a mixture of polyethylene powder, polytetrafluoroethylene powder, polyamide powder, and PMMA powder;
the solid raw materials have a particle size of 5-50 μm, and the raw materials are thoroughly mixed and compressed to form a powdered solid compact composition with a density of 8-9 g/cm3.

### Claim 2 (depends on 1)

The antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 1, characterized in that: the solid raw materials have a particle size of 10-30 μm.

### Claim 3 (depends on 1)

The antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 1, characterized in that: based on the total weight percentage, the viscous fluid skin-feel modifier consists of 1%-2% silicone conditioning agent, 1%-5% synthetic ester oil, and 1%-11% alcohol.

### Claim 4 (depends on 3)

The antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 3, characterized in that:
the silicone conditioning agent is selected from one or a mixture of polymethylsiloxane, polydimethylsiloxane, alkyl methyl siloxane, and polydimethylcyclosiloxane;
the synthetic ester oil is selected from one or a mixture of caprylic triglyceride, capric triglyceride, ethylhexyl palmitate, glyceryl tri(2-ethylhexanoate), diisobutyl adipate, isopropyl palmitate, cetyl 2-ethylhexanoate, and tocopheryl acetate;
the alcohol is selected from one or a mixture of propylene glycol, caprylyl glycol, butylene glycol, pentylene glycol, and 3-[2-(ethylhexyl)oxy]-1,2-propanediol.

### Claim 5 (depends on 1)

The antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 1, characterized in that: based on the total weight percentage, the ultraviolet protective agent is one or a mixture of zinc oxide, cerium oxide, and titanium oxide, added in an amount of 5%-10%.

### Claim 6 (depends on 1)

The antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 1, characterized in that: based on the total weight percentage, the carrier powder is composed of a mixture of 15%-20% mica, 10%-15% kaolin, 15%-20% magnesium stearate, and 5%-10% silica.

### Claim 7 (depends on 1)

The antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 1, characterized in that: the plant extract is one or a mixture of aloe vera extract, calendula extract, Bambusa arundinacea extract, sophora flavescens extract, salvia miltiorrhiza powder, ginger extract, and white willow bark extract.

### Claim 8 (depends on 1)

A method for preparing the antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 1, characterized by the following steps:
(1) Pre-mixing: At room temperature, add all solid raw materials, except the plant extract and the viscous fluid skin-feel modifier, into a powder mixing vessel according to their weight percentages; Stir at 2000-2500 rpm until uniformly dispersed, while controlling the temperature of the raw material mixture during stirring to not exceed 40° C.;
(2) Mixing: Pre-disperse the plant extract into the viscous fluid skin-feel modifier raw material, then spray it into the powder mixing vessel using an atomization device; During the spraying process, intermittently stir multiple times at 2000-2500 rpm until all components are uniformly dispersed, while controlling the temperature of the raw material mixture during stirring to not exceed 40° C.;
(3) Secondary Pulverization: Subject the thoroughly dispersed raw material mixture to pulverization using a high-speed pulverizer to convert it into a powder, and sieve the mixed powder through a 100-200 mesh screen;
(4) Standing: Allow the sieved mixed powder to stand thoroughly under environmental conditions of 25-28° C. temperature and 40%-60% humidity until the temperature and humidity of the mixed powder stabilize;
(5) Compaction: Load the stood mixed powder into a mold, and compact the powder within the mold to form the powdered solid compact composition with a density of 8-9 g/cm3.

### Claim 9 (depends on 8)

The method for preparing the antibacterial and sun-protective powdered solid compact composition with decorative elements according to claim 8, characterized in that: in step (5), the mixed sieved powder is compacted intermittently multiple times at a pressure of 70-80 kg/cm2.