20240025931. Acylphosphine Oxide Photoinitiators and Applications Thereof simplified abstract (AGFA NV)

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Acylphosphine Oxide Photoinitiators and Applications Thereof

Organization Name

AGFA NV

Inventor(s)

Johan Loccufier of Mortsel (BE)

Acylphosphine Oxide Photoinitiators and Applications Thereof - A simplified explanation of the abstract

This abstract first appeared for US patent application 20240025931 titled 'Acylphosphine Oxide Photoinitiators and Applications Thereof

Simplified Explanation

The abstract of the patent application describes an acyl phosphine oxide initiator that includes various acyl groups substituted by either a urea group or an oxalylamide group. These acyl groups are attached to benzoyl, 2,6-dimethyl benzoyl, 2,6-dimethoxy benzoyl, 2,4,6-trimethyl benzoyl, or 2,4,6-trimethoxybenzoyl groups. The urea and oxalylamide groups contain a tertiary amine group that positions a phosphorus atom of the acyl phosphine oxide initiator in a specific position.

  • The acyl phosphine oxide initiator includes acyl groups substituted by urea or oxalylamide groups.
  • The acyl groups can be attached to various benzoyl derivatives.
  • The urea and oxalylamide groups contain a tertiary amine group that positions the phosphorus atom.
  • The acyl phosphine oxide initiator has no more than two photoinitiating moieties with a phosphine oxide group.

Potential applications of this technology:

  • Photopolymerization: The acyl phosphine oxide initiator can be used in photopolymerization processes to initiate the crosslinking of monomers and polymers.
  • 3D printing: The acyl phosphine oxide initiator can be incorporated into photopolymer resins used in 3D printing to enable rapid curing and solidification of the printed objects.
  • Coatings and adhesives: The acyl phosphine oxide initiator can be used in the formulation of UV-curable coatings and adhesives, providing fast and efficient curing.

Problems solved by this technology:

  • Faster curing: The acyl phosphine oxide initiator allows for rapid curing of photopolymer materials, reducing processing time and increasing productivity.
  • Enhanced performance: The use of the acyl phosphine oxide initiator can improve the mechanical properties, chemical resistance, and durability of cured materials.
  • Versatility: The acyl phosphine oxide initiator can be tailored by selecting different acyl groups and substituents, allowing for customization of the curing process and properties of the final product.

Benefits of this technology:

  • Improved efficiency: The acyl phosphine oxide initiator enables faster and more efficient curing of photopolymer materials, reducing energy consumption and production costs.
  • Enhanced product performance: The use of the acyl phosphine oxide initiator can result in materials with improved mechanical strength, adhesion, and resistance to environmental factors.
  • Versatile formulation: The acyl phosphine oxide initiator offers flexibility in formulation design, allowing for the development of tailored materials for specific applications.


Original Abstract Submitted

an acyl phosphine oxide initiator including an acyl group selected from the group consisting of a benzoyl group substituted by an urea group or an oxalylamide group; a 2,6-dimethyl benzoyl group substituted in position 3 by an urea group or an oxalylamide group; a 2,6-dimethoxy benzoyl group substituted in position 3 by an urea group or an oxalylamide group; a 2,4,6-trimethyl benzoyl group substituted in position 3 by an urea group or an oxalylamide group; and a 2,4,6-trimethoxybenzoyl group substituted in position 3 by an urea group or an oxalylamide group, wherein the urea group and the oxalylamide group include a tertiary amine group positioning a phosphorus atom of the acylphosphine oxide initiator in a 1 to z position, where position 1 is defined as that of the phosphorus atom and position z is defined as the nitrogen atom of the tertiary amine group with z representing an integer of at least 11; and that the acyl phosphine oxide initiator contains no more than two photoinitiating moieties having a phosphine oxide group.