Acetaldehyde scavenger treatment

Patent metadata

Field	Value
Publication number	US-10590246-B2
Application number	US-201715612705-A
Country	US
Kind code	B2
Filing date	Jun 2, 2017
Priority date	Jun 6, 2016
Publication date	Mar 17, 2020
Grant date	Mar 17, 2020

Abstract

A method of forming a vehicle interior foam article, the method including applying a mold release agent onto an inner surface of a mold, delivering a solution having aldehyde scavenger(s) to the mold such that a reaction of the aldehyde scavenger(s) with the mold release agent is prevented, delivering a foam material into the mold, and casting the article.

First claim

What is claimed is:

1. A method of forming a vehicle interior foam article, the method comprising:
applying a mold release agent onto an inner surface of a mold;
delivering a solution comprising aldehyde scavenger(s) to the mold such that a reaction and contact of the aldehyde scavenger(s) with the mold release agent is prevented;
delivering a foam material into the mold; and
casting the article.

2. The method of claim 1 , further comprising inserting a liner between the mold release agent and the solution to prevent any reaction of the aldehyde scavenger(s) with the mold release agent.

3. The method of claim 2 , wherein the liner is a plastic film.

4. The method of claim 2 , wherein the liner contains one or more types of zeolites capable of capturing the aldehyde scavenger(s).

5. The method of claim 1 , further comprising encapsulating the aldehyde scavenger(s) in micelles.

6. The method of claim 1 , wherein the aldehyde scavenger(s) are capable of trapping aldehyde within the article and preventing aldehyde from being released into cabin air.

7. The method of claim 1 , wherein the aldehyde is acetaldehyde.

8. The method of claim 1 , wherein the aldehyde scavenger(s) include an amide, a polysaccharide, a diamine, or a combination thereof.

9. The method of claim 1 , wherein the aldehyde scavenger(s) include cyclical structures configured to form inclusion complexes with aldehyde.

10. The method of claim 1 , wherein the aldehyde scavenger(s) include glucose units.

11. The method of claim 1 , wherein the mold release agent comprises a hydrophobic material with no open hydroxyl function.

12. The method of claim 1 , further comprising heating the mold prior to the applying step.

13. The method of claim 1 , wherein the mold release agent is a complex wax.

Assignees

• Ford Motor Co

Inventors

• Zhu Jennifer Haijin
• Zhang Ji
• Dearth Mark Allen
• Hallifax Timothy James
• Debolt Mica Marie
• Mielewski Deborah Frances

Classifications

• C09D7/63

  organic · CPC title

• B29K2067/046

  PLA, i.e. polylactic acid or polylactide · CPC title

• C09D5/033

  characterised by the additives · CPC title

• B29K2027/06

  PVC, i.e. polyvinylchloride · CPC title

• B29C44/02

  for articles of definite length, i.e. discrete articles · CPC title