Patent ID: 11925697
Assignee: DENTSPLY SIRONA INC.
Field: Pharmaceuticals (Chemistry)
Classification: CPC A | IPC A

Claim 2:
3. The photocurable dental impression material according to claim 1, wherein the polymerizable silicone compounds are compounds of the following formula (I):, wherein
R1 represents a (meth)acrylate group containing organic residue, a C1-4 alkyl group, a group of the formula [—OSiR′2]nR′, or two groups R1 or a group R1 and R2 form together a group [—OSiR′2]n—, wherein the R′, which may be the same or different, independently represent a C1-4 alkyl group or an (meth)acrylate group containing organic residue and n is an integer of from 1 to 20;
R2 represents a C1-4 alkyl group or a group of the formula [—OSiR″2]mR″, or two groups R2 or a group R1 and R2 form together a group [—OSiR″2]m—, wherein the R″, which may be the same or different, independently represent a C1-4 alkyl group and m is an integer of from 1 to 20;
L represents a divalent C1-20 organic linker group;
a represents 0 or an integer of from 1 to 20;
b represents 0 or an integer of from 1 to 20;
c represents 0 or an integer of from 1 to 20;
d represents 0 or an integer of from 1 to 20;
provided that at least two (meth)acrylate groups are present in the compound of formula (I).