General Electric Company

Loctite Corporation

Melvin D Beers

Roger T Swiger

Gary M Lucas

Robert A Smith

Mary A White

Richard P Surprenant

Tyrone D Mitchell

Rack H Chung

Rack H Chung, Deceased

Abe Berger

Terry G Selin

James E Thompson

Robert Joseph Robillard

Stephen B Hamilton

Pearline DeLaTorre

John W Dean

Harold Chura

There is provided a self-leveling silicone composition comprising

Self-leveling silicone sealant compositions and methods for making same

A novel, shelf-stable, one-component alkoxy-functional RTV composition having therein as a scavenger an alkoxy-functional silazane compound. The silazane compound can be cyclic or linear and can also be an integrated cross-linking agent.

Novel Scavengers for one-component RTV compositions

An acid scavenger additive for a one-component, acyloxy-functional RTV composition. The acid scavenger is selected from magnesium materials, zinc materials, and aluminum materials. The acid scavenger prevents a discoloration of the metallic substrate and a decrease in bonding properties of the RTV composition to the substrate on which it is applied.

One-component RTV silicone composition with good bonding properties

A titanium chelate catalyst for a room temperature vulcanizable silicone rubber composition which does not form nodules upon storage where the catalyst has the formula, ##STR1## where s varies from 0.7 to 1.3 and t varies from 0.7 to 1.3. Preferably s varies from 0.8 to 1.2 and t varies from 0.8 to 1.2.

Titanium chelate catalyst for silicone compositions

Novel scavengers for one-component RTV compositions

One component silicone compositions with good bonding properties

Stable, substantially acid-free, one package moisture curable polyalkoxy-terminated organopolysiloxane compositions are provided having a condensation catalyst such as a tin compound. A method for making the aforesaid moisture curable organopolysiloxane compositions, is also provided.

One package, stable, moisture curable, polyalkoxy-terminated

A low modulus, one component, room temperature vulcanizable silicone elastomer which has very good oil resistance properties as well as high elongation. The silicone elastomer which has low volatility comprises a silanol terminated diorganosiloxane base polymer, a trimethylsilyl terminated diorganopolysiloxane, generally a tin catalyst, as well as a oxime crosslinking agent and specific low moisture fillers, usually calcium carbonate. The material is ideally suited as a gasket sealant as well as a formed-in-place gasket and can be utilized on internal combustion engines such as automotive engines as a sealant for an oil pan, valve cover, side seals and the like.

Oil resistant low modulus silicone sealant composition

A titanium chelate catalyst for a room temperature vulcanizable silicone rubber compositions which does not form nodules upon storage where the catalyst has the formula, ##STR1## where s varies from 0.7 to 1.3 and t varies from 0.7 to 1.3. Preferably s varies from 0.8 to 1.2 and t varies from 0.8 to 1.2.

A devolatilized room temperature vulcanizable silicone rubber composition comprising a silanol polymer, a plasticizing fluid, a cross-linking agent, a curing promoter and optionally, a filler wherein the plasticizing fluid and the silanol polymer are devolatilized prior to being mixed to form the room temperature vulcanizable silicone rubber composition by heating them at temperatures of at least 200.degree. C. under vacuum for at least 5 minutes. If there is utilized a filler and the filler is treated with cyclopolysiloxanes or silazanes, then preferably the filler is also devolatilized.

Devolatilized room temperature vulcanizable silicone rubber composition

A room temperature vulcanizable silicone rubber composition with very low modulus comprising a silanol end-stopped diorganopolysiloxane, a difunctional acetamide coupler and as the cross-linker, a minor amount of compound selected from ketoxime functional and aminoxy functional silanes and mixtures thereof.

Extreme low modulus RTV compositions

Self-bonding one-package room temperature vulcanizing silicone compositions, curable in the presence of moisture to rubbery materials, comprise

Curable compositions and process

An acetamide compound of the formula, ##STR1## where R, R.sup.1, R.sup.2, R.sup.4 are monovalent hydrocarbon radicals, and R.sup.3 is a divalent hydrocarbon radical.

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Schenectady, NY, United States of America

Melvin D Beers