Method of preparing solventless, thermoplastic silicone pellets

Details Method of preparing solventless, thermoplastic silicone pellets Method of preparing solventless, thermoplastic silicone pellets

1996-08-28

1998-01-13

Glass, Margaret W.

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

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525478, 525479, 525476, C08F28300

Patent

active

057080984

ABSTRACT:
Solventless, thermoplastic silicone pellets are prepared blending silicone resins (A) of the MQ-type and with predominantly linear silicone fluids (B), such as polydimethylsiloxane liquids and gums, to substantially homogeneity. The blends are heated to a predetermined compression-forming temperature, compression-formed to a densified mass and shaped into a pellet form. The composition of the pellets is balanced such that the pellets exhibit plastic flow at the predetermined compression-forming temperature and resist agglomeration at temperatures at or below a predetermined maximum storage temperature.

REFERENCES:
patent: 2676182 (1954-09-01), Daudt et al.
patent: 4935484 (1990-06-01), Wolfgruber et al.
patent: 5324806 (1994-06-01), Wengrovius et al.

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