Patent · US Expired

Silicone pastes formulated with a structural viscosity for impression materials

US4568707A · kind A · utility

19Cited by

3References

7Claims

0Family size

Assignee

BAYER HEALTHCARE LLC · DE

Inventors

Reiner Voigt · Leverkusen, DE
Peter Schwabe · Leverkusen, DE

Key dates

Filing date	Mar 12, 1985
Grant date	Feb 4, 1986
Priority date	—
Expiry date	Mar 12, 2005

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08G77/20
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

In a polysiloxane-based composition which crosslink by addition, comprising (a) an organosiloxane with two or more vinyl groups in the molecule, (b) and organo-hydridopolysiloxane, as a crosslinking agent, (c) a catalyst for accelerating the addition reaction, (d) a hydrophobic filler and (e) optionally a dyestuff pigment, the improvement which comprises (f) hydrogenated castor oil as a structuring agent. The composition is highly viscous and will not run but can readily be stirred.

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