Polymeric materials and articles manufactured there from

Patent metadata

Field	Value
Publication number	US-11723875-B2
Application number	US-201916364507-A
Country	US
Kind code	B2
Filing date	Mar 26, 2019
Priority date	Apr 10, 2018
Publication date	Aug 15, 2023
Grant date	Aug 15, 2023

Abstract

A water-soluble polyurethane derived from: polyethylene glycol, polyethylene glycol-block-polypropylene glycol-block-polyethylene glycol polymer, polypropylene glycol-block-polyethylene glycol-block-polypropylene and mixtures thereof, 1,1′-Carbonyldiimidazole, polyamine and mixtures thereof.

First claim

What is claimed is:

1. A method for manufacturing a three-dimensional object, the method comprising steps of:
a) providing a digital description of the object as a set of voxels; and
b) sequentially creating an actual set of voxels corresponding to the digital set of voxels; wherein at least one voxel comprises
i) a polyurethane derived from: polyethylene glycol, polyethylene glycol-block-polypropylene glycol-block-polyethylene glycol polymer, polypropylene glycol-block-polyethylene glycol-block-polypropylene and mixtures thereof, 1,1′-Carbonyldiimidazole, polyamine of the structure:

 where R 1 is selected from the group consisting of: —OCH3, —OH, —NH2,

 and mixtures thereof, R 2 is selected from the group consisting of: —(C2H4)-NH2, —CH3, —H,

 and mixtures thereof, A is between about 1 and about 300, (B+C)/A is between about 0 and about 0.6, and at least one R 1 or R 2 group contains nitrogen, and
ii. a benefit agent;
c) forming a three dimensional article wherein the three dimensional article dissolves in use.

2. The method according to claim 1 wherein the at least one voxel further comprises a filler.

3. The method according to claim 2 wherein the three-dimensional object comprises at least one void volume fully enclosed by voxels.

4. The method according to claim 3 wherein the void volume is at least partially filled with a solid, powder, liquid or mixtures thereof.

5. The method according to claim 2 wherein the three-dimensional object is a consumer product.

6. The method according to claim 1 wherein the benefit agent is an aversive agent.

Assignees

• Procter & Gamble
• Virginia Tech Intellectual Properties Inc

Inventors

• Hodgdon Travis Kyle
• Graham Douglas Michael
• Barnabas Freddy Arthur
• Kenneally Corey James
• Williams Christopher Bryant
• Zawaski Callie Elizabeth
• Long Timothy E
• Pekkanen Allison M
• White Benjamin Tyler

Classifications

• C11D2111/12

  Soft surfaces, e.g. textile · CPC title

• A61K9/5031 Primary

  obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyethylene glycol, poly(lactide-co-glycolide) · CPC title

• A61K8/0216

  Solid or semisolid forms · CPC title

• A61K8/87

  Polyurethanes · CPC title

• A61K9/4833

  Encapsulating processes; Filling of capsules (mechanical aspects A61J3/07) · CPC title