Hydrosilated azlactone functional silicon containing compounds and derivatives thereof
AssigneeMinnesota Mining and Manufacturing Company
InventorKanta Kumar
Life of this patent
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Abstract
Azlactone functional silicon containing compounds are prepared from alkenyl azlactones and SiH containing compounds in a hydrosilation reaction. The resulting compounds can be reacted with nucleophilic compounds to provide amidoacyl group containing silicon compounds. When the amidoacyl group containing silicon compounds contain ethylenic unsaturated they can be polymerized to provide polymeric networks useful as pressure sensitive adhesives release compositions, or elastomeric materials.
Claims36
An azlactone-functional silicon containing compound having the formula:
- ##STR27## wherein G is hydrogen, halogen, or any monomeric group free of alipholic unsaturation or any polymeric group free of aliphatic unsaturation and having combining power of p,
- p is an integer having a value of 1 to 50,
- R.sup.1 is hydrogen, halo, or an alkyl group having 1 to 6 carbon atoms,
- R.sup.2 is a covalent bond, a straight chain or branched alkylene group having 1 to 8 carbon atoms, or a phenylene group,
- R.sup.3 and R.sup.4 are independently hydrogen, an alkyl or cycloalkyl group having 1 to 12 carbon atoms, aryl or aralkyl group having 6 to 12 carbon atoms, or R.sup.3 and R.sup.4 taken together with the carbon atoms to which they are attached to form a 5- to 12-membered carbocyclic ring, and
- R.sup.5 is independently hydrogen or a monovalent organic group free of aliphatic unsaturation and having 1 to 50 carbon atoms.
An amidoacyl group and silicon containing compound having the formula ##STR29## wherein G is a hydrogen, halogen or any monomeric or polymeric group free of aliphatic unsaturation and having combining power of p,
- p is an integer of 1 to 50,
- R.sup.1 is hydrogen, halo, or an alkyl group having 1 to 6 carbon atoms,
- R.sup.2 is a covalent bond, a straight chain or branched alkylene group having 1 to 8 carbon atoms, or a phenylene group,
- R.sup.3 and R.sup.4 are independently hydrogen, an alkylo or cycloalkyl group having 1 to 12 carbon atoms, aryl or aralkyl group having 6 to 12 carbon atoms, or R.sup.3 and R.sup.4 taken together with the carbon atoms to which they are attached to form a 5- to 12-membered carbocyclic ring,
- R.sup.5 is independently hydrogen or a monovalent organic group free of aliphatic unsaturation and having 1 to 50 carbon atoms.
- A is derived from (HX).sub.g A, an ethylenically unsaturated or saturated nucleophilic compound, wherein H is hydrogen, wherein g is an integer 1 to 6, and
- X is --O--, --S--, or --NE--, wherein E is hydrogen, an alkyl or cycloalkyl group having up to 10 carbon atoms, or an aryl group having up to 20 carbon atoms.
A polymer having the formula ##STR31## wherein G is hydrogen, halogen, or any monomeric group free of aliphatic unsaturation or any polymeric group free of aliphatic unsaturation and having combining power of p,
- p is an integer having a value of 1 to 50,
- R.sup.1 is hydrogen, halo, or an alkyl group having 1 to 6 carbon atoms,
- R.sup.2 is a covalent bond, a straight chain or branched alkylene having 1 to 8 carbon atoms, or a phenylene group,
- R.sup.3 and R.sup.4 are independently hydrogen, an alkyl or cycloalkyl group having 1 to 12 carbon atoms, aryl or aralkyl group having 6 to 12 carbon atoms, or R.sup.3 and R.sup.4 taken together with the carbon atoms to which they are attached to form a 5- to 12-membered carbocyclic ring,
- each R.sup.5 independently is hydrogen or monovalent organic group free of aliphatic unsaturation and having 1 to 50 carbon atoms,
- X is --O--, --S--, or ##STR32## wherein E is hydrogen, an alkyl or cycloalkyl group having up to 10 carbon atoms, or an aryl group having up to 20 carbon atoms,
- A* is polymerized A, wherein A contains at least one ethylenically unsaturated group.
A method for providing an azlactone functional silicon containing compound comprising the step of:
- reacting an alkenyl azlactone with an SiH containing compound and an effective amount of a hydrosilation catalyst to provide said azlactone functional silicon containing compound.
A copolymer comprising units of the formula ##STR34## wherein G, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, X, A, p and d are as previously defined and A* is polymerized A.
Dependencies are inferred from the claim text.