Patent · US Active

Polysiloxane composition

US11339291B2 · kind B2 · utility

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1References
15Claims
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Inventors

Key dates

Filing dateMay 18, 2018
Grant dateMay 24, 2022
Priority date—
Expiry dateMay 18, 2038

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08K2003/265
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

Viscosity peaking during initial formulation of condensation curing compositions employing silanol-functional organopolysiloxanes and alkoxysilanes is avoided by employing specific titanium compounds. A curing catalyst which may be a titanium compound or a tin compound may be added following disappearance of silanol functionality.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.