3D printing with PHT/PHA based materials and polymerizable monomers

Patent metadata

Field	Value
Publication number	US-10023735-B2
Application number	US-201414461844-A
Country	US
Kind code	B2
Filing date	Aug 18, 2014
Priority date	Aug 18, 2014
Publication date	Jul 17, 2018
Grant date	Jul 17, 2018

Abstract

This application describes methods of forming an object. The methods described include forming a mixture with i) one or more primary diamines, ii) one or more polymerizable monomers, iii) a formaldehyde-type reagent, and iv) a polymerization initiator; forming a gel by heating the mixture to a temperature of at least 50° C.; and curing the one or more polymerizable monomers by activating the polymerization initiator. The one or more primary diamines may include one or more amine functional oligomers and/or primary aromatic diamine small molecules. The one or more polymerizable monomers may include styrenics, acrylates, methacrylates, vinyl esters, unsaturated polyesters, and derivatives thereof. The gel is a polyhemiaminal (PHA), a polyhexahydrotriazine (PHT), and/or a polyoctatriazacane (POTA) polymer, and curing of the gel forms an interpenetrating network of the PHA/PHT/POTA and the polymer formed from the polymerizable monomers.

First claim

We claim:

1. A composition, comprising:
an interpenetrating network of a first material comprising
a polyhemiaminal (PHA), polyhexahydrotriazine (PHT), polyoctatriazacane (POTA), or combination thereof;
an oligomer selected from the group consisting of polyether, polyester, polystyrenic, polyacrylate, polymethacrylate, polycyclooctene, polyamide, polynorbornene, and derivatives thereof; and
a divalent bridging group of formula (5):

wherein L′ is a divalent linking group selected from the group consisting of *—O—*, *—S—*, *—N(R′)—*, *—N(H)—*, *—R″—*, and combinations thereof, wherein R′ and R″ independently comprise at least 1 carbon; and

a second material comprising a cured polymer selected from the group consisting of a styrenic polymer, an acrylate polymer, a methacrylate polymer, a vinyl ester polymer, an unsaturated polyester polymer, and derivatives thereof.

2. The composition of claim 1 , further comprising a filler.

3. The composition of claim 2 , wherein the filler is a fiber material.

4. The composition of claim 1 , further comprising a fiber filler, wherein the composition is a percolation network.

Assignees

• IBM

Inventors

• Boday Dylan J
• Garcia Jeannette M
• Hedrick James L
• Nelson Alshakim
• Wojtecki Rudy J

Classifications

• B29C64/314

  Preparation · CPC title

• C08J2300/208

  Interpenetrating networks [IPN] · CPC title

• C08L61/22 Primary

  of aldehydes with acyclic or carbocyclic compounds · CPC title

• C09D125/06

  Polystyrene · CPC title

• C08J2361/22

  of aldehydes with acyclic or carbocyclic compounds · CPC title