Filler based on silicon dioxide, method for its preparation, and

Details Filler based on silicon dioxide, method for its preparation, and Filler based on silicon dioxide, method for its preparation, and

1997-03-26

1998-12-22

Cain, Edward J.

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...

524493, 524494, 523115, 523217, 523116, 523117, 501 39, C08K 300

Patent

active

058520961

ABSTRACT:
Porous silicon dioxide glass is proposed as an inorganic filler for polymerizable materials, which has a particle size of 0.5-50 micrometers, a pore size of 20-120 nanometers, a pore volume of 200-1000 mm.sup.3 /g and a BET surface area of 10-100 m.sup.2 /g. The polymer products containing the filler are characterized by a very good resistance to abrasion.

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patent: 4215033 (1980-07-01), Bowen
patent: 4217264 (1980-08-01), Mabie et al.
patent: 4267097 (1981-05-01), Michl et al.
patent: 4608357 (1986-08-01), Silverman et al.
patent: 4649165 (1987-03-01), Kuhlmann
Schweiz Monatsschr Zahnmed. vol 100:Aug. 1990, pp. 953-960.
Chemical Abstract of JP 60200843, vol. 104, No. 134 735.

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