Multi-core granules

Patent metadata

Field	Value
Publication number	US-11753605-B2
Application number	US-201716344236-A
Country	US
Kind code	B2
Filing date	Oct 31, 2017
Priority date	Nov 1, 2016
Publication date	Sep 12, 2023
Grant date	Sep 12, 2023

Abstract

A granule comprising (a) at least three cores comprising a biological active and a plasticizable polymer, wherein the cores are made of a material having an elongation upon break of at least 30%, and wherein the diameter of the cores is at least 50 μm and at most two thirds of the diameter of the granule; (b) a solid matrix interspacing the cores of (a), wherein the solid matrix is made of a material having an elongation upon break of less than 30%; and (c) optionally a coating consisting of one or more layer(s) surrounding the granule. A detergent composition comprising a detergent builder, a surfactant, and a granule as described. Use of the granule as a component in a process for manufacturing a detergent composition.

First claim

The invention claimed is:

1. A granule comprising
(a) at least three discrete cores each comprising a biological active and a plasticizable polymer within the core, wherein the cores are made of a material having an elongation upon break of at least 30%, and wherein the diameter of the cores is at least 50 μm and at most two thirds of the diameter of the granule;
(b) a solid matrix interspacing the cores of (a), wherein the solid matrix is made of a material having an elongation upon break of less than 30%; and
(c) optionally a coating consisting of one or more layer(s) surrounding the granule.

2. The granule of claim 1 , wherein the solid matrix comprises at least 50% w/w of a crystalline material.

3. The granule of claim 2 , wherein the crystalline material is one or more silicas, clays, and/or inorganic salts.

4. The granule of claim 3 , wherein the inorganic salts are salts of sulfate, carbonate, nitrate, or chloride.

5. The granule of claim 1 , wherein the diameter of the cores is at least 50 μm and at most half of the diameter of the granule.

6. The granule of claim 1 , wherein the plasticizable polymer is selected from the group consisting of polyvinyl alcohols (PVA), polyethylene glycols (PEG), polyethylene oxides (PEO), polyvinyl pyrrolidones (PVP), cellulose ethers, alginates, gelatin, modified starches and substituted derivatives, hydrolysates and copolymers thereof.

7. The granule of claim 6 , wherein the cores comprise at least 50% of the plasticizable polymer.

8. The granule of claim 1 , wherein the cores comprise a polyol.

9. The granule of claim 8 , wherein the polyol is glycerol, ethylene glycol, diethylene glycol, triethylene glycol, propylene glycol, dipropylene glycol, or polyethylene glycol (PEG) having an average molecular weight below about 800, or mixtures thereof.

10. The granule of claim 1 , wherein the biological active is an enzyme or a microorganism.

11. The granule of claim 1 , wherein the biological active is an enzyme selected from the group consisting of protease, lipase, cutinase, amylase, carbohydrase, cellulase, pectinase, mannanase, arabinase, galactanase, xylanase, DNase, perhydrolase, oxidase, laccase, peroxygenase, haloperoxidase, and peroxidase.

12. The granule of claim 1 , wherein the biological active is a bacterial spore.

13. A detergent composition comprising a detergent builder, a surfactant, and a granule according to claim 1 .

14. The detergent composition of claim 13 , which is a particulate composition.

15. The granule of claim 12 , wherein the bacterial spore is a Bacillus endospore.

Assignees

• Novozymes As

Inventors

• Findeisen Alexander
• Cervera-Padrell Albert
• Shang Lei
• Nissen Lotte E
• Simonsen Ole
• Bach Poul

Classifications

• C11D17/0039 Primary

  Coated compositions or coated components in the compositions, (micro)capsules · CPC title

• C11D3/38672 Primary

  Granulated or coated enzymes · CPC title

• C11D3/046

  Salts · CPC title

• C11D3/124

  Silicon containing, e.g. silica, silex, quartz or glass beads · CPC title

• C11D3/126

  in solid compositions · CPC title