Polysulfide or polythioether sealant composition including glycol organic acid esters
Assignee3M Innovative Properties Company
InventorsGregory P. Karp, Audrey B. Nguyen, Jonathan D. Zook, Alla Yankovsky, Heather N. Kinney
Life of this patent
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Abstract
Various embodiments disclosed relate to polysulfide or polythioether sealant composition including glycol organic acid esters. The sealant composition can include a first component including a liquid that is a polysulfide, a polythioether, a copolymer thereof, or a combination thereof. The sealant composition can also include a second component that includes one or more glycol di((C1-C20)hydrocarbyl)carboxylate esters, wherein at each occurrence the (C1-C20)hydrocarbyl is independently substituted or unsubstituted. The second component can also include an oxidizing agent.
Claims15
A sealant composition comprising:
- a first component comprising a liquid that is a polysulfide, a polythioether, a copolymer thereof, or a combination thereof;
- and
- a second component comprising
- one or more glycol di((C1-C20)hydrocarbyl)carboxylate esters, wherein at each occurrence the (C1-C20)hydrocarbyl is independently substituted or unsubstituted;
- and
- an oxidizing agent.
A sealant composition comprising:
- a first component, wherein the first component is about 80 wt % to about 95 wt % of the sealant composition;
- and
- a second component, wherein the second component is about 5 wt % to about 20 wt % of the sealant composition, wherein the second component comprises
- one or more glycol di((C1-C20)hydrocarbyl)carboxylate esters, wherein the one or more glycol di((C1-C20)hydrocarbyl)carboxylate esters are about 20 wt % to about 80 wt % of the second component, wherein the one or more glycol di((C1-C20)hydrocarbyl)carboxylate esters are diethylene glycol dibenzoate and dipropylene glycol dibenzoate in a weight ratio of about 1:1 to about 6:1;
- an oxidizing agent, wherein the oxidizing agent is about 20 wt % to about 80 wt % of the second component, wherein the oxidizing agent is manganese dioxide;
- an organic amine catalyst, wherein the organic amine catalyst is about 0.001 wt % to about 10 wt % of the second component, wherein the organic amine catalyst is diphenylguanidine;
- a fatty acid, wherein the fatty acid is about 0.001 wt % to about 10 wt % of the second component, wherein the fatty acid is stearic acid;
- a thiuram sulfide accelerator, wherein the thiuram sulfide accelerator is about 0.01 wt % to about 15 wt % of the second component, wherein the thiuram sulfide accelerator is dipentamethylene thiuram hexasulfide;
- a silica filler, wherein the silica filler is about 0.001 wt % to about 10 wt % of the second component, wherein the silica filler is fumed silica;
- and
- a drying agent, wherein the drying agent is about 0.01 wt % to about 20 wt % of the second component, wherein the drying agent is molecular sieves;
- wherein
- the sealant composition is up to about 1.5 wt % water that is not complexed or incorporated with the drying agent, and
- the sealant composition is substantially free of alkyl phenol ethoxylate surfactants, poly(ethylene-vinyl acetate), phthalates, chlorinated paraffins, butyl diglycols, and hydrogenated terphenyls.
Dependencies are inferred from the claim text.