Dow Silicones Corporation

Dow Toray Co., Ltd.

Dow Corning Toray Company, Ltd.

Dow Corning Corporation

Hiroshi Adachi

Qi Chen

Lei Fang

Xiucuo Li

Makoto Iwai

Kenji Ota

Thomas W Galbraith

Wataru Nishiumi

Debo Hong

Brent D Dull

Eiji Horita

Kazutoshi Okabe

Hideyuki Mori

A method for producing a thixotropic curable silicone composition is provided. The curable silicone composition comprises: (A) a silicone base material comprising: an organopolysiloxane having at least two alkoxysilyl-containing groups per molecule and a filler other than fumed silica; (B) a hydrophobic fumed silica; (C) a carbasilatrane derivative; (D) an alkoxysilane or its partial hydrolysis and condensation product; and (E) a condensation reaction catalyst. The method comprises the following steps: (I) mixing components (A) and (B); (II) mixing component (C) with a mixture obtained by step (I); and (III) mixing components (D) and (E) with a mixture obtained by step (II) under free of moisture. The curable silicone composition obtained by the method has an excellent thixotropic property and can cure at room temperature by contact with moisture in air.

Method for producing thixotropic curable silicone composition

The present disclosure relates to a primer composition. The primer composition comprises: a tert butyl acetate solvent; an organometallic reagent selected from organotitanates, organozirconates, aluminum organometallic compounds, and any combination thereof; an organotin compound; a silane with at least 3 hydrolyzable groups; and a polyorganosiloxane resin. Optionally, the primer composition further comprises a second solvent different from the tert butyl acetate solvent.

Low VOC construction primer

A method of inhibiting or reducing discoloration of a diorganopolysiloxane composition comprising the steps of mixing: said composition with the following components in any order: i) a source of ferrous ions; and ii) 0.0001-0.05 wt. % per total weight of the composition of a bis(2-pyridylthio-1-oxide) non-ferrous salt per total weight of the composition.

Inhibition/reduction in discoloration of diorganopolysiloxane compositions

Growing community of inventors

Ichihara, Japan

Hiroshi Adachi