Novel polymer polyol stabilizers
AssigneeCovestro LLC
InventorRick L. Adkins
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Abstract
This invention relates to novel macromers comprise the reaction product of a starter compound having a functionality of 2 to 8 and a hydroxyl number of 20 to 50, with a modified isocyanate component. This invention also relates to preformed stabilizers prepared from these macromers, and to polymer polyols prepared from these novel macromers and novel preformed stabilizers. The present invention also relates to processes for preparing these compositions, to polyurethane foams comprising these polymer polyols, and to processes for preparing these polyurethane foams.
Claims27
A macromer comprising the reaction product of:
- (a) a starter compound having a functionality 2 to 8, and a hydroxyl number of from 20 to 50;
- with
- (b) a modified isocyanate component comprising the reaction
- product of
- (i) a diisocyanate or polyisocyanate;
- with
- (ii) a compound corresponding to the general structure:
- wherein:
- n represents 0 or 1;
- R:
- represents an alkyl group, a hetero containing acyclic group, a nitro group, or an alkoxyl group;
- R1:
- represents an alkyl group, an aryl group, a substituted aryl containing group, or an alkoxyl group;
- and
- X:
- represents an isocyanate reactive group;
- optionally, in the presence of
- (iii) a catalyst;
- optionally, in the presence of
- (c) a catalyst.
A preformed stabilizer comprising the reaction product of:
- (1) a macromer comprising the reaction product of:
- (a) a starter compound having a functionality 2 to 8, and a hydroxyl number of from 20 to 50;
- with
- (b) a modified isocyanate component comprising the reaction product of
- (i) a diisocyanate or polyisocyanate;
- with
- (ii) a compound corresponding to the general structure:
- wherein:
- n represents 0 or 1;
- R:
- represents an alkyl group, a hetero containing acyclic group, a nitro group, or an alkoxyl group;
- R1:
- represents an alkyl group, an aryl group, a substituted aryl containing group, or an alkoxyl group;
- and
- X:
- represents an isocyanate reactive group;
- optionally, in the presence of
- (iii) a catalyst;
- optionally, in the presence of
- (c) a catalyst;
- with
- (2) at least one ethylenically unsaturated monomer;
- in the presence of:
- (3) a free-radical polymerization initiator;
- and, optionally,
- (4) a polymer control agent;
- and, optionally,
- (5) a liquid diluent.
A polymer polyol comprising the free-radical, in-situ polymerization product of:
- (A) a base polyol;
- (B) a macromer comprising the reaction product of:
- (a) a starter compound having a functionality 2 to 8, and a hydroxyl number of from 20 to 50;
- with
- (b) a modified isocyanate component comprising the reaction product of
- (i) a diisocyanate or polyisocyanate;
- with
- (ii) a compound corresponding to the general structure:
- wherein:
- n represents 0 or 1;
- R:
- represents an alkyl group, a hetero containing acyclic group, a nitro group, or an alkoxyl group;
- R1:
- represents an alkyl group, an aryl group, a substituted aryl containing group, or an alkoxyl group;
- and
- represents an isocyanate reactive group;
- optionally, in the presence of
- (iii) a catalyst;
- optionally, in the presence of
- (c) a catalyst;
- with
- (C) at least one ethylenically unsaturated monomer;
- in the presence of:
- (D) a free-radical polymerization initiator;
- and, optionally,
- (E) a chain transfer agent;
- and, optionally,
- (F) a polymer control agent.
A polymer polyol comprising the free-radical, in-situ polymerization product of:
- (A) a base polyol;
- (B) a preformed stabilizer comprising the reaction product of:
- (1) a macromer comprising the reaction product of:
- (a) a starter compound having a functionality 2 to 8, and a hydroxyl number of from 20 to 50;
- with
- (b) a modified isocyanate component comprising the reaction product of
- (i) a diisocyanate or polyisocyanate;
- with
- (ii) a compound corresponding to the general structure:
- wherein:
- n represents 0 or 1;
- R:
- represents an alkyl group, a hetero containing acyclic group, a nitro group, or an alkoxyl group;
- R1:
- represents an alkyl group, an aryl group, a substituted aryl containing group, or an alkoxyl group;
- and
- X:
- represents an isocyanate reactive group;
- optionally, in the presence of
- (iii) a catalyst;
- optionally, in the presence of
- (c) a catalyst;
- with
- (2) at least one ethylenically unsaturated monomer;
- in the presence of:
- (3) a free-radical polymerization initiator;
- and, optionally,
- (4) a polymer control agent;
- and, optionally,
- (5) a liquid diluent
- with
- (C) at least one ethylenically unsaturated monomer;
- in the presence of:
- (D) a free-radical polymerization initiator;
- and, optionally,
- (E) a chain transfer agent;
- and, optionally,
- (F) a polymer control agent.
Dependencies are inferred from the claim text.