HIGH CRYSTALLINE POLY(LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING

USPTO Patent Application US 2017/0066188 A1
Application Date: Mar. 9th, 2017

ABSTRACT

Provided is a new and better solution to the problems associated with the premature softening of PLA filaments in the additive manufacturing of three dimensional articles. It is based upon...
Application Number:
15/309,255
International Classification:
B29C 67/00 (20060101); B33Y 70/00 (20060101); B33Y 10/00 (20060101); B29C 47/00 (20060101); B29C 71/00 (20060101)
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CLAIMS

What is claimed is:

1. A filament for use in three-dimensional printing, said filament being comprised of crystalized poly(lactic acid), wherein said filament has a diameter which is within the range of 1.65 mm to 1.85 mm or which is within the range of 2.75 mm to 3.15 mm.

DESCRIPTION

BACKGROUND OF THE INVENTION

By definition “rapid prototyping” is a group of techniques that can be used to quickly fabricate a scale model of a physical part or assembly using 3-dimensional computer aided design (CAD) data. In rapid prototyping, construction of the part or assembly is usually done in an additive, layer-by-layer fashion. Those...
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