Precursor of amorphous carbon molded article

Details Precursor of amorphous carbon molded article Precursor of amorphous carbon molded article

1994-07-11

1998-05-05

Truong, Duc

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528480, 528502, 528503, 264 77, 264239, C08G 1832

Patent

active

057476314

ABSTRACT:
A phenolic resin molding material for molding a precursor of an amorphous carbon molded article which comprises a particulate phenolic resin having thermal plasticity coated with a low-surface tension substance containing no metallic substance; a transparent precursor of an amorphous carbon molded article which comprises a homogeneous phenolic resin homogenized by molding under a highly flowing state and has few large voids and a low metal content; a process for molding the precursor which comprises molding the phenolic resin molding material with its water content being controlled by molding, i.e., kneading followed by shaping under a highly flowing state, such as transfer molding, extrusion, injection molding or injection compression molding; and a process for producing an amorphous carbon molded article which comprises carbonizing the precursor by burning.
The amorphous carbon molded article produced by the present invention is suitably used as crecibles or Raschig rings in the fields of metallurgical and chemical industries, and as plasma etchers, susceptors or substrates of electronic parts in the electronic industry field.

REFERENCES:
patent: 4880893 (1989-11-01), Waitkus

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