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US 9,290,462 B1Granted
Polythiol curing agents with low odor
AssigneeTDA Research, Inc.
InventorSilvia DeVito Luebben
Life of this patent
Estimating the term…
Abstract
This invention relates to the composition of matter of polythiols having a chemical structure in FIG. 1. In certain embodiments this invention provides a polythiol with low or no odor and which is a liquid, a waxy solid or a semi-solid at 22° C. In another embodiment the polythiols have a viscosity lower than 100,000 cP at 50° C. In other embodiments, the invention provides a mixture of thiol compounds or a mixture of thiol and amine compounds.
Claims6
A polythiol comprising the chemical structure:
- wherein R1 is selected from the group consisting of A), B), C), D), E), F) and G):
- wherein, X is selected from the group consisting of O, S, NH and NR, wherein R is a monovalent organic radical;
- and
- wherein R10, R11, R12, and R13 is an oligomer comprising repeating units selected from the group consisting of glycols, ethylene glycol, propylene glycol, ethers, fluoroethers, olefins, fluoroolefins, acrylates, methacrylates, vinyl compounds, alkynes, esters, amino acids, lactones, lactames, polyols, urethanes, epoxies, hydroxacids, dienes, polyenes, chloroolefins, diols, diammines, and polyamines.
1 more element
Dependencies are inferred from the claim text.