Polypropylene for additive manufacturing (3d printing)

Abstract

A process and printer systems for printing a three-dimensional object are disclosed. The processes may include providing a non-crosslinked peroxydicarbonate-branched polypropylene filament, flake, pellet, or powder adapted for one of a fused deposition modeling (Arburg Plastic Freeforming) printer or a fused filament fabrication printer; and printing the non-crosslinked peroxydicarbonate-branched polypropylene with fused deposition modeling (Arburg Plastic Freeforming) printer or a fused filament fabrication printer to form a three-dimensional article. The printer systems may include one or more print heads for printing a polymer provided in filament, powder, flake, or pellet form to form a three-dimensional article; and one or more feed systems for providing a non-crosslinked peroxydicarbonate-branched polypropylene to a respective print head.

1 - 11 . (canceled) 
     
     
         12 . An article comprising a non-crosslinked peroxydicarbonate-branched polypropylene formed by a process comprising:
 providing a non-crosslinked peroxydicarbonate-branched polypropylene filament, flake, pellet, or powder adapted for one of a fused deposition modeling printer or a fused filament fabrication printer;   printing the non-crosslinked peroxydicarbonate-branched polypropylene with fused deposition modeling printer or a fused filament fabrication printer to form a three-dimensional article.   
     
     
         13 . A fused filament printer system comprising:
 one or more print heads for printing a three-dimensional article; and   one or more spools for providing a non-crosslinked peroxydicarbonate-branched polypropylene to a respective print head.   
     
     
         14 . The printer system of  claim 13 , wherein the one or more print heads are configured to rapidly change temperature. 
     
     
         15 . The printer system of  claim 13 , wherein the one or more print heads are configured to operate at different temperatures. 
     
     
         16 . A fused deposition modeling printer system comprising:
 one or more print heads for printing a polymer in powder, flake, or pellet form to form a three-dimensional article; and   one or more feed systems for providing a non-crosslinked peroxydicarbonate-branched polypropylene to a respective print head.   
     
     
         17 . The printer system of  claim 16 , wherein the one or more print heads are configured to rapidly change temperature. 
     
     
         18 . The printer system of  claim 16 , wherein the one or more print heads are configured to operate at different temperatures. 
     
     
         19 . The fused filament printer system of  claim 13 , further comprising a control system configured to selectively vary the temperature of the one or more print heads. 
     
     
         20 . The printer system of  claim 19 , wherein the one or more print heads are configured to rapidly change temperature. 
     
     
         21 . The printer system of  claim 19 , wherein the one or more print heads are configured to operate at different temperatures. 
     
     
         22 . The printer system of  claim 16 , further comprising a control system configured to selectively vary the temperature of the one or more print heads. 
     
     
         23 . The printer system of  claim 22 , wherein the one or more print heads are configured to rapidly change temperature. 
     
     
         24 . The printer system of  claim 22 , wherein the one or more print heads are configured to operate at different temperatures.