Stratasys, Inc.

Terravia Holdings, Inc.

Lifoam Industries, LLC

Solazyme, Inc.

Saco Polymers, Inc.

Saco Aei Polymers, Inc.

Adam R Pawloski

Jeffrey Jacob Cernohous

Benjamin A Demuth

Kent Kaske

John Piechocki

Ali Harlin

Greggory S Bennett

Adrienne McKee

Luke M B Rodgers

Jaakko Pere

Tiina Liitiä

Christiane Laine

Anna-Stiina Jääskeläinen

Garrett Scott Van Gorden

Sonia Sousa

Theresa Sherar

Jani Kiuru

Kalle Nättinen

Vittorio L Jaker

Jiayi Zhu

David Geraint Roberts

Neil R Granlund

Gregory S Bennett

Adam E Szymanski

Kent A Kaske

Jeffry Jacob Cernohous

A support material for use in an additive manufacturing system includes a copolymer of vinyl pyrrolidone (VP) monomers and elastomeric monomers. The elastomeric monomers and the VP monomers are covalently bonded and copolymerized. The support material is thermally stable even at temperatures above 80&#xb0; C. and is disintegrable in aqueous solutions such as tap water.

Water soluble support materials for high temperature additive manufacturing applications

A polymeric blend includes a blend of polyvinylpyrrolidone (PVP) polymers. The polymeric material includes a blend of at least two PVP polymers wherein at least one of the PVP polymers has an average molecular weight of about 40,000 daltons or greater. The support material can be thermally stable at temperatures above 80&#xb0; C. The support material is disintegrable in aqueous solutions such as tap water.

A support material for use in an additive manufacturing system, which includes a thermoplastic copolymer polymerized from monomers comprising acid-functional monomers having carboxylic acid groups, and one or more non-acid-functional monomers, where a portion of the carboxylic acid groups are neutralized with a base having an alkali metal cation. The thermoplastic copolymer has a high glass transition temperature and melt processing temperature, and is thermally stable at its melt processing temperature. The neutralized thermoplastic copolymer is soluble in an alkaline aqueous solution.

High-temperature soluble support material for additive manufacturing

The present invention describes compostable or biobased foams that are useful for fabricating foamed articles and methods for producing the same. The foams are produced using a compound comprising a compostable or biobased polyester and a blowing agent. Additives including plasticizers and chain extenders are optionally included in the compostable or biobased composition. These foams can be produced using conventional melt processing techniques, such as single and twin-screw extrusion processes. In one embodiment, foamed strand profiles are cooled and cut using conventional strand pelletizing equipment. In another embodiment, foamed beads are produced by cutting the foamed strand at the face of the extrusion die and the foamed bead or strand is subsequently cooled. The resulting compostable or biobased foamed bead has a specific gravity less than 0.15 g/cmand the foam is compostable, as determined by ASTM D6400.

Compostable or biobased foams

Part materials for additive manufacturing applications include materials with a fluoropolymer processing aid (material-FP). These materials include one or more thermoplastic polymers and one or more fluoropolymers as a processing aid. The material-FP is used to build parts with additive manufacturing systems. Parts built using material-FP have improved physical properties including improved strength in the z-direction of the parts. Composite systems such as reinforced filaments with the material-FP also have a higher density.

Materials containing fluoropolymers for additive manufacturing applications

A consumable assembly for use with an additive manufacturing system to print three-dimensional parts, the consumable assembly including a supply device (e.g., a spool) and a filament supported by the supply device, where the filament has a composition comprising one or more elastomers and one or more reinforcing additives, and a filament geometry configured to be received by a liquefier assembly of the additive manufacturing system. The composition is preferably configured to be thermally and/or chemically modified to reduce its flexural modulus.

Consumable filaments having reversible reinforcement for extrusion-based additive manufacturing

A pre-ceramic support structure for additive manufacturing, that upon thermal processing, is soluble in various solvents.

Ceramic support structure

A feedstock material for use as a support material in an additive manufacturing system includes a pre-ceramic material in powder form. The preceramic material comprises calcium carbonate, sodium carbonate, sodium aluminate or combinations thereof. The feedstock material includes a thermoplastic binder having the pre-ceramic material dispersed therein, wherein the pre-ceramic material and the thermoplastic binder are in a filament form. The filament is configured to be melted and extruded to form a support structure for a ceramifable article in a layer by layer manner, wherein the pre-ceramic material is at least about 50% of the feedstock material.

Provided are biomass-based materials and valuable uses of microalgal biomass including: (i) acetylation of microalgal biomass to produce a material useful in the production of thermoplastics; (ii) use of triglyceride containing microalgal biomass for production of thermoplastics; (iii) combination of microalgal biomass and at least one type of plant polymer to produce a material useful in the production of thermoplastics; (iv) anionization of microalgal biomass to form a water absorbant material; (v) cationization of microalgal biomass, and optional flocculation, to form a water absorbant material; (vi) crosslinking of anionized microalgal biomass; (vii) carbonization of microalgal biomass; and (viii) use of microalgal biomass in the making of paper.

Algal thermoplastics, thermosets, paper, adsorbants and absorbants

The deposition of graphene is accomplished by various techniques that result in a change of the graphene's solubility in the liquid medium. The solubility change enables the deposition of the graphene onto the substrate. Once the graphene is deposited onto the substrate, the at least partially coated substrate may be separated from the liquid medium. The substrates may then serve as a carrier to deliver the graphene to a desired application.

Graphene coated substrates and resulting composites

Described herein are a wood plastic composite including an oleaginous microbial biomass, a thermoplastic composite including a heterotrophically cultivated microalgal biomass, and related articles and methods.

Wood plastic and thermoplastic composites

A substrate having a flame retardant polymer chemically bonded to at least a portion of the substrate. The use of a substrate possessing at least a partially coated outer surface of a flame retardant polymer enables the manufacturing of polymer composites, containing the coated substrate, that possess very effective flame retardant performance while reducing the loading levels over conventional flame retardant additives.

Flame retardant compositions

The present invention enables the secondary expansion of lightweight foamed beads. The foamed beads are produced using a compound comprising a compostable or biobased polyester and a physical blowing agent as well as a chemical blowing agent. Secondary expansion can be used either to lower the density of the foamed bead further or to enable expansion of the beads during molding to promote fusion. The foam beads can be produced using conventional melt processing techniques, such as single and twin-screw extrusion processes.

Growing community of inventors

Lake Elmo, MN, United States of America

Adam R Pawloski