Title:
HIGHLY CRYSTALLINE POLY (LACTIC ACID) FILAMENTS FOR MATERIAL-EXTRUSION BASED ADDITIVE MANUFACTURING
Document Type and Number:
WIPO Patent Application WO/2015/169257
Kind Code:
A1
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 the finding that poly (lactic acid) filaments with high crystallinity offer much better resistance to heat-induced softening. The crystalline poly (lactic acid) filament can accordingly be used in the additive manufacturing of three dimensional articles without encountering the problems associated with premature softening, such as poor quality and printer jamming. The crystalline poly (lactic acid) filaments can also be used in additive manufacturing of three dimensional articles without compromising the quality of the ultimate product, reducing printing speed, increasing cost, or leading to increased printer complexity. It more specifically discloses a filament for use in three-dimensional printing which is 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.
Inventors:
LUO XIAOFAN (CN)
PEI ZHAOKUN (CN)
PEI ZHAOKUN (CN)
Application Number:
PCT/CN2015/078566
Publication Date:
November 12, 2015
Filing Date:
May 08, 2015
Export Citation:
Assignee:
JF POLYMERS SUZHOU CO LTD (CN)
International Classes:
B29C71/02; B29B9/06; B29C48/06; B29C48/30; C08L67/04; D01D5/08; D01D5/084; D01F6/92
Foreign References:
| KR101350993B1 | 2014-01-23 | |||
| CN103467950A | 2013-12-25 | |||
| CN103146164A | 2013-06-12 | |||
| CN103665802A | 2014-03-26 | |||
| GB1048088A | 1966-11-09 |
Other References:
GUO SHUANG-ZHUANG ET AL.: "Properties of Polylactide Inks for Solvent-Cast Printing of Three- Dimensional Freeform Microstructures.", LANGMUIR, vol. 30, no. 4, 11 January 2014 (2014-01-11), pages 1142 - 1150, XP055235596
D. DRUMMER: "Suitability of PLA/TCP for fused deposition modelling", RAPID PROTOTYPING JOURNAL, vol. 18, no. 6, 2012, pages 500 - 507, XP055353887, DOI: 10.1108/13552541211272045
GUO ET AL.: "Properties of Polylactide inks for Solvent-Cast Printing of Three-Dimensional Freeform Microstructures", LANGMIR, vol. 30, 2014, pages 1142 - 1150, XP055235596, DOI: 10.1021/la4036425
See also references of EP 3140106A4
D. DRUMMER: "Suitability of PLA/TCP for fused deposition modelling", RAPID PROTOTYPING JOURNAL, vol. 18, no. 6, 2012, pages 500 - 507, XP055353887, DOI: 10.1108/13552541211272045
GUO ET AL.: "Properties of Polylactide inks for Solvent-Cast Printing of Three-Dimensional Freeform Microstructures", LANGMIR, vol. 30, 2014, pages 1142 - 1150, XP055235596, DOI: 10.1021/la4036425
See also references of EP 3140106A4
Attorney, Agent or Firm:
P. C. & ASSOCIATES (CN)
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