Metal free antimicrobial and UV protection additive

• US 10,638,761 B2
• Filed: 01/12/2017
• Issued: 05/05/2020
• Est. Priority Date: 01/10/2017
• Status: Active Grant

• Current Assignee: Sia Alina
• Original Assignee: Sia Alina
• Inventors: Kostjukovs, Juris, Karasa, Julija, Kostjukova, Solvita
• Primary Examiner(s): Green, Anthony J
• Application Number:
  US16/477,071
• Publication Number:
  US 20190357540A1
• Time in Patent Office: 1,209 Days
• CPC Class Codes: A01N 25/08 containing solids as carriers or diluents
• CPC Class Codes: A01N 25/34 Shaped forms, e.g. sheets, not provided for in any other sub-group of this main group
• CPC Class Codes: A01N 33/12 Quaternary ammonium compounds
• CPC Class Codes: A01N 59/06 Aluminium; Calcium; Magnesium; Compounds thereof
• CPC Class Codes: C09D 5/14 Paints containing biocides, e.g. fungicides, insecticides or pesticides C09D5/16 takes precedence
• CPC Class Codes: C09D 7/48 Stabilisers against degradation by oxygen, light or heat
• CPC Class Codes: C09D 7/62 modified by treatment with other compounds

Abstract

Metal free antimicrobial and UV protection additives, which can be used in building or finishing materials, such as plasters, mortars, primers, paints and other protective or decorative coatings to eliminate growth of bacteria, fungi, algae and lichen and to protect material from ultraviolet (UV) radiation. The additive having mixed organophilic layer illite-smectite, chlorite, illite, carbonates, silica and hematite with the following ratio of the components (weight %): mixed layer organophilic illite-smectite from 40 to 70%; chlorite from 5 to 10%; illite from 5 to 10%; carbonates from 0 to 20%; silica from 5 to 20%; hematite from 0 to 3%. The mixed layer illite-smectite is organophilized with quaternary ammonium compounds used in the amount from 10 to 30% counting from the required weight of the mixed layer organophilic illite-smectite.

Claims

1. An antimicrobial and UV protection additive comprising:

mixed layer illite-smectite, chlorite, illite, carbonates, silica and hematite, wherein the additive contains the following ratio of the components, weight %;

mixed layer illite-smectite from 40 to 70%,

chlorite from 5 to 10%,

illite from 5 to 10%,

carbonates from 0 to 20%,

silica from 5 to 20%,

hematite from 0 to 3%,

wherein the mixed layer illite-smectite in advance is organophilized with quaternary ammonium compounds used in the amount from 10 to 30 wt % based on the weight of the mixed layer illite-smectite.

2. The antimicrobial additive according to claim 1, wherein carbonates are selected from the group consisting of calcite and dolomite.

3. The antimicrobial additive according to claim 1, wherein the quaternary ammonium compound is selected from the group consisting of:

monomethyl, dimethyl, and trimethyl substituted quaternary ammonium salts.

4. The antimicrobial additive according to claim 1, wherein the quaternary ammonium compound comprises at least one long aliphatic chain having 8 to 18 carbon atoms.

5. The antimicrobial additive according to claim 1, wherein the quaternary ammonium compound is selected from the group of halides consisting of chloride and bromide.

6. A building or finishing material comprising the antimicrobial and UV protection additive of claim 1 in a proportion (mass mixing ratio) building or finishing material:

the additive—

from 1;

500 to 1;

5.

7. The antimicrobial additive according to claim 2, wherein the quaternary ammonium compound is selected from the group consisting of:

monomethyl, dimethyl, and trimethyl substituted quaternary ammonium salts.

8. The antimicrobial additive according to claim 2, wherein the quaternary ammonium compound comprises at least one long aliphatic chain having 8 to 18 carbon atoms.

9. The antimicrobial additive according to claim 2, wherein the quaternary ammonium compound is selected from the group of halides consisting of chloride and bromide.