High boiling inhibitors for distillable, polymerizable monomers
AssigneeCrompton Corporation
InventorsRobert E. Sheridan, Kenneth W. Hartman
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Abstract
Disclosed herein are compounds of the structure wherein R1, R2, and R3 are organic radicals of C1 to C20, such that the combination of the three contain at least twelve carbon atoms and R3 is bound to the methylene carbon atom between X and the aromatic ring by at least one saturated carbon atom, allowing it to be easily separated from the polymerizable monomer by distillation; R1 and R2 have sufficient steric bulk to protect the phenol from reacting with an alkoxy group or halogen bound to silicon; and X is a neutral heteroatomic radical of oxygen, nitrogen, or phosphorus; and their use as inhibitors for the polymerization of (meth)acryloxysilanes.
Claims6
A method for the stabilization of (meth)acryloxysilanes during their production, storage, or both comprising adding thereto a compound of the structure
- wherein
- R1, R2, and R3 are organic radicals of C1 to C20, such that the combination of the three contain at least twelve carbon atoms and R3 is bound to the methylene carbon atom between X and the aromatic ring by at least one saturated carbon atom, allowing it to be easily separated from the polymerizable monomer by distillation;
- R1 and R2 have sufficient steric bulk to protect the phenol from reacting with an alkoxy group or halogen bound to silicon;
- and
- X is a neutral heteroatomic radical of oxygen, nitrogen, or phosphorus.
Dependencies are inferred from the claim text.