Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
199 words
An organopolysiloxane photoinitiator having an average of at least two siloxane units, of which at least an average of one siloxane unit per organopolysiloxane molecule has the formula: X.sub.a R.sub.b SiO.sub.(4-a-b)/2 (I) wherein a is an integer of 1-3, b is an integer of 0-2 and a plus b equals 1-3; R is C 1 -C 10 hydrocarbyl or halogen substituted C 1 -C 10 hydrocarbyl; and X is a substituted acetophenone photomoiety selected from: ##STR7## where R 1 is any substituent which will not interfere with hydrosilation, n is an integer between 0 and 5 in formulas (II), (IIa), (III), (IIIa), (IV) and (IVa) and between 0 and 4 in formula (III) and (IIIa); m is 0 or 1; R 2 is alkyl or substituted alkyl; R 3 is H, alkyl or aryl; R 4 is a divalent hydrocarbon group having between 2 and 10 carbon atoms or an alkylene oxy alkylene group; R 5 is a group selected from H, alkyl, aryl, organosilyl, or the reaction product of an isocyanate esterification reagent or an etherification reagent with the hydroxyl product formed when R 5 is H and R 6 is a trivalent hydrocarbon or hydrocarbon oxyhydrocarbon group.
Claim 2
Dependent Claim
199 words
An organopolysiloxane photoinitiator having an average of at least two siloxane units, of which at least an average of one siloxane unit per organopolysiloxane molecule has the formula: X.sub.a R.sub.b SiO.sub.(4-a-b)/2 (I) wherein a is an integer of 1-3, b is an integer of 0-2 and a plus b equals 1-3; R is C 1 -C 10 hydrocarbyl or halogen substituted C 1 -C 10 hydrocarbyl; and X is a substituted acetophenone photomoiety selected from: ##STR7## where R 1 is any substituent which will not interfere with hydrosilation, n is an integer between 0 and 5 in formulas (II), (IIa), (III), (IIIa), (IV) and (IVa) and between 0 and 4 in formula (III) and (IIIa); m is 0 or 1; R 2 is alkyl or substituted alkyl; R 3 is H, alkyl or aryl; R 4 is a divalent hydrocarbon group having between 2 and 10 carbon atoms or an alkylene oxy alkylene group; R 5 is a group selected from H, alkyl, aryl, organosilyl, or the reaction product of an isocyanate esterification reagent or an etherification reagent with the hydroxyl product formed when R 5 is H and R 6 is a trivalent hydrocarbon or hydrocarbon oxyhydrocarbon group.
Claim 3
Dependent Claim
14 words
A photoinitiator as in claim 1 where R is alkyl, substituted alkyl or aryl.
Claim 4
Dependent Claim
14 words
A photoinitiator as in claim 1 where R 1 is halo, alkyl or alkoxy.
Claim 5
Dependent Claim
9 words
A photoinitiator of claim 1 where n is 0.
Claim 6
Dependent Claim
19 words
A photoinitiator of claim 1 where X is selected from formulas II and III and R 2 is alkyl.
Claim 7
Dependent Claim
12 words
A photoinitiator of claim 1 where R 4 is propylene or propenylene.
Claim 8
Dependent Claim
13 words
A photoinitiator of claim 1 wherein X has the structure of formula IIa.
Claim 9
Dependent Claim
17 words
A photoinitiator of claim 1 wherein X has the structure of formula III and m is 1.
Claim 10
Dependent Claim
13 words
A photoinitiator of claim 1 wherein X has the structure of formula IVa.
Claim 11
Dependent Claim
18 words
A photoinitiator of claim 1 wherein X has the structure of formula IV and R 5 is organosilyl.
Claim 12
Dependent Claim
31 words
The method of curing a free radical curable compound having acrylic or vinyl functionality comprising subjecting to actinic radiation a composition of said compound and a photoinitiator as in claim 1.
Claim 13
Dependent Claim
17 words
The method of claim 11 wherein said curable compound is a silicone with acrylic or vinyl functionality.
Claim 14
Dependent Claim
20 words
A composition comprising a photoinitiator as in claim 1 and a free radical curable compound having acrylic or vinyl functionality.
Claim 15
Dependent Claim
17 words
The composition of claim 13 wherein said curable compound is a silicone with acrylic or vinyl functionality.