← Back to Patent Explorer
US3821218A Expired / Lapsed US ⏱️ 0.0 years remaining

Nitrogen-containing organosilicon materials

Assignee: General Electric Co
•
Filing: 1970-12-08
•
Granted: 1974-06-28
•
Expires: 1990-12-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A method is provided for making various nitrogen-containing organosilicon compounds, such as silylorganoisocyanates, the corresponding carbamate and isocyanurates. The method involves contacting silylorganohalide and a metal cyanate in the presence of a suitable aprotic solvent. Nitrogen-containing organosilicon compounds are provided having silicon and nitrogen atoms separated by a divalent hydrocarbon radical. In instances where a urethane is desired, an appropriate aliphatic monohydric alcohol can be utilized in combination with the silylorganohalide and metal cyanate. The subject nitrogen-containing organosilicon compounds can be utilized for making silicon-organic copolymers and as treating agents for imparting water repellency to various substances.

Inventors

  • 👤 A Berger

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 14:44
CPC Classifications
D; D06; D06M; D06M15/00; D06M15/19; D06M15/37; D06M15/643; D06M15/6436; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0892; C07F7/0894; C07F7/10; C07F7/18; C07F7/1804; C07F7/1872; C07F7/1892; C07F7/1896; D06M15/653

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 7 words
A compound of claim 1 being 1,3,5-tris(trimethoxysilylpropyl)isocyanurate.
Claim 2
Dependent Claim 19 words
A compound of claim 1 being 1,3,5-tris(3''-trimethoxysilylalkylene)isocyanurate where the alkylene radical may have from one to eight carbon atoms.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-06-27 1977-12-27 1978-06-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-06-27 1981-12-27 1982-06-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-06-27 1985-12-27 1986-06-28 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag