Storable plastic organopolysiloxane molding compositions

US4458055A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hans Sattlegger · Odenthal, DE
• Karl Schnurrbusch · Leverkusen, DE
• Hans-Gerd Metzinger · Leverkusen, DE

Key dates

• Filing date: Mar 22, 1982
• Grant date: Jul 3, 1984
• Expiry date: Mar 22, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/16
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A process for the preparation of a plastic organopolysiloxane composition which can be stored in the absence of water and which is convertable even at room temperature into rubber-elastic compositions by the action of water or atmospheric moisture, comprising mixing a hydroxyl-terminated poly-diorganopolysiloxane with about 0.1-15% by weight of the total mixture of a substance of the formula EQU R.sub.W RO.sub.Z Si[NR"'R'R.sub.n Si(OR).sub.3-n ].sub.4-m wherein PA1 R is an alkyl radical having 1-4 C atoms, PA1 R' is a divalent alkylene radical having 1-6 C atoms or a unit of the formula --(CH.sub.2).sub.3 NH(CH.sub.2).sub.2 -- or --(CH.sub.2).sub.2 --NH(CH.sub.2).sub.2 NH(CH.sub.2).sub.2 --, PA1 R"' is an alkyl radical having 1-4 C atoms, R.sub.W RO.sub.2 Si or hydrogen, PA1 n is 0, 1 or 2, and PA1 m=W+Z=0, 1, 2 or 3, or a partial hydrolysis product thereof as a crosslinking agent.