Microlattice structures including flame retardant materials and compositions and methods for forming the same

Patent metadata

Field	Value
Publication number	US-10407550-B2
Application number	US-201514826182-A
Country	US
Kind code	B2
Filing date	Aug 13, 2015
Priority date	Aug 14, 2014
Publication date	Sep 10, 2019
Grant date	Sep 10, 2019

Abstract

A composition for forming a microlattice structure includes a photopolymerizable compound and a flame retardant material. A microlattice structure includes a plurality of struts interconnected at a plurality of nodes, the struts including: a copolymer including a reaction product of a photopolymerizable compound and a flame retardant material. A microlattice structure includes a plurality of struts interconnected at a plurality of nodes, the struts including: a polymer including a reaction product of a photopolymerizable compound; and a flame retardant material.

First claim

What is claimed is:

1. A composition for forming a microlattice structure, comprising:
a first photoinitiable-polymerizable compound and a second photoinitiable-polymerizable compound, the first photoinitiable-polymerizable compound comprising an unsaturated carbon-carbon bond and the second photoinitiable-polymerizable compound comprising a terminal thiol group; and
a flame retardant material selected from a phosphate, a phosphonate, a phosphinate, and a mixture thereof,
wherein at least one selected from the first photoinitiable-polymerizable compound and the second photoinitiable-polymerizable compound comprises a first non-photoinitiable-polymerizable functional group,
wherein a second non-photoinitiable-polymerizable functional group is bonded to the flame retardant material, the second non-photoinitiable-polymerizable functional group being selected from an isocyanate group, an epoxy group, and a combination thereof, and
wherein the first non-photoinitiable-polymerizable functional group and the second non-photoinitiable-polymerizable functional group are capable of reacting with each other.

2. The composition of claim 1 , wherein the first photoinitiable-polymerizable compound comprising the unsaturated carbon-carbon bond is selected from the group consisting of ethylene, substituted olefins, 1,3-dienes, styrene, α-methyl styrene, vinyl esters, acrylates, methacrylates, acrylonitriles, acrylamides, N-vinyl carbazoles, N-vinyl pyrrolidone, and mixtures thereof.

3. The composition of claim 1 , wherein the second photoinitiable-polymerizable compound comprising the terminal thiol group is selected from the group consisting of pentaerythritol-tetra-3-mercaptopropionate, trimethylolpropane tris(3-mercaptopropionate), 1,6-hexanedithiol, trimethylolpropane tris(2-mercaptoacetate), ethoxylated trimethylolpropane tris(3-mercaptopropionate), glycol di-3-mercaptopropionate, and mixtures thereof.

4. The composition of claim 1 , wherein the first photoinitiable-polymerizable compound comprising the unsaturated carbon-carbon bond is included in the composition in an amount of 10 to 90 wt %, and the second photoinitiable-polymerizable compound comprising the terminal thiol group is included in the composition in an amount of 10 to 90 wt %, based on the total weight of the composition.

5. The composition of claim 1 , wherein a photoinitiable-polymerizable functional group is bonded to the flame retardant material, and the photoinitiable-polymerizable functional group of the flame retardant material is capable of reacting with at least one selected from the first photoinitiable-polymerizable compound and the second photoinitiable-polymerizable compound to form a copolymer.

6. The composition of claim 5 , wherein the photoinitiable-polymerizable functional group of the flame retardant material is selected from a thiol group, an alkenyl group, an alkynyl group, an acrylate group, an epoxy group, and a methacrylate group.

7. The composition of claim 1 , wherein the flame retardant material is included in the composition in an amount of 1 to 33 wt % based on the total weight of the composition.

8. The composition of claim 1 , wherein the flame retardant material further comprises particles comprising a material selected from alumina trihydrate, ammonium polyphosphate, red phosphorous, an organic phosphinate, melamine polyphosphate, borates, expandable graphite, a phosphorous based oligomer, and a mixture thereof.

9. The composition of claim 1 , wherein the flame retardant material comprises a first flame retardant material having the second non-photoinitiable-polymerizable functional group bonded to the first flame retardant material and a second flame retardant material having a photoinitiable-polymerizable functional group bonded to the second flame retardant material.

10. The composition of claim 9 , wherein the first non-photoinitiable-polymerizable functional group is selected from an isocyanate group, a hydroxyl group, an amine group, a carboxylic acid group, an epoxy group, a silyl ether, and a combination thereof.

Assignees

• Hrl Lab Llc

Inventors

• Yang Sophia S
• Clough Eric C
• Boundy Thomas I
• Nowak Andrew P
• Eckel Zak C
• Jacobsen Alan J

Classifications

• C09D181/00

  Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing sulfur, with or without nitrogen, oxygen, or carbon only; Coating compositions based on polysulfones; Coating compositions based on derivatives of such polymers · CPC title

• C08G75/00 Primary

  Macromolecular compounds obtained by reactions forming a linkage containing sulfur with or without nitrogen, oxygen, or carbon in the main chain of the macromolecule · CPC title

• C09K21/00

  Fireproofing materials (for use in a particular application, see the relevant places, e.g. fireproofing of wood B27K, of polymers C08, of textiles D06M, of paper D21H; fireproof paints C09D5/18) · CPC title

• C08K5/10 Primary

  Esters; Ether-esters · CPC title