Reaction injection molding of ceramic or metallic greenbodies

Details Reaction injection molding of ceramic or metallic greenbodies Reaction injection molding of ceramic or metallic greenbodies

1988-02-16

1990-03-06

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

2643286, 26432818, 419 36, 419 37, 419 65, C04B 3564, B29C 4500, B22F 300

Patent

active

049064240

ABSTRACT:
Greenbodies are produced by a RIM injection molding process wherein a homogeneous mixture of finely divided ceramic or metallic material and a polymerizable monomeric binder is injected into a mold and held at an elevated temperature for a sufficient time to polymerize the binder and form the greenbody. A preferred monomeric binder includes di- and tri-acrylate or -methacrylate esters of polyols. The low viscosity of the monomeric binder allows a loading of ceramic material of greater than 50 vol. % without adversely affecting the ability to injection mold the mixture.

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