Compression molding method, mix and product

Details Compression molding method, mix and product Compression molding method, mix and product

1997-01-17

1998-10-06

Michl, Paul R.

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

Synthetic resins

At least one aryl ring which is part of a fused or bridged...

C08K 310

Patent

active

058177108

ABSTRACT:
Polymethyl methracrylate (PMMA) articles filled with alumina trihydrate (ATH) are made by a compression molding technique wherein methyl methacrylate monomer is completely absorbed into performed particles of PMMA and of PMMA filled with ATH to give a mix with the consistency of dry sand, the mix is placed into rigid mold, and pressure and heat are applied to the mold, causing monomer to exude from the mix and to cure in the interstices.

REFERENCES:
patent: 4185070 (1980-01-01), Angell
patent: 5145903 (1992-09-01), Duncan
patent: 5319014 (1994-06-01), Moorman
patent: 5321055 (1994-06-01), Slocum
patent: 5444115 (1995-08-01), Hu
patent: 5521243 (1996-05-01), Minghetti

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