Polyurethane ionomer blends and methods for their preparation and formation
AssigneesBrown University, Callaway Golf Company
InventorsWilliam M. Risen, Mingzhe Wang
Life of this patent
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Abstract
The invention relates to blends of improved polyurethane ionomers with other polymers and methods for making the same. It was found that the blends of polyurethane anionomers obtained by using the method of the invention had improved physical properties than those made by conventional methods.
Claims38
A polyurethane ionomer composition comprising a thermoplastic polymer blended with a polyurethane ionomer produced by the process of:
- a) reacting a diisocyanate compound with a polyol compound in a solvent to form an isocyanate terminated polyurethane prepolymer;
- and
- b) reacting the isocyanate terminated polyurethane prepolymer with a finely divided substantially anhydrous metal salt of an acid-group containing polyol in a solvent to form a polyurethane ionomer.
A polyurethane ionomer composition comprising the reaction product of a polymer blended with a polyurethane ionomer produced by the process of:
- a) reacting a diisocyanate compound having the formula
- OCN-[A]-NCO (I)
- where
- A=a straight chain or branched chain aliphatic group, a substituted straight chain or branched chain aliphatic group or an aromatic or substituted aromatic group;
- with a polyol having the formula
- HO-[B]n—OH (II)
- where
- B=a straight chain or branched chain aliphatic group, a substituted straight chain or branched chain aliphatic group or an aromatic or substituted aromatic group, a polyether or a polyester, and;
- n=1-300;
- in a solvent to form an isocyanate terminated polyurethane prepolymer having the formula
- 6
- where x=1.0-100;
- b) reacting the isocyanate terminated polyurethane prepolymer of formula (III) with a finely divided metal dimethylolpropionate having the formula
- 7
- where M=Ba2+, Ca2+, Cs+, K+, Li+, Mg2+, Na+, Rb+, Sr2+, and Zn2+;
- R=H or C1-C3 alkyl and;
- n=1 or 2;
- in the presence of a solvent to form a polyurethane ionomer having the formula:
- 8
- and
- c) treating the polyurethane ionomer of formula V to remove any remaining solvent wherein a polyurethane ionomer product is produced.
A polyurethane ionomer composition comprising a blend of thermoplastic polymer with a polyurethane ionomer which exhibits a stable storage modulus (E′) having a 50° breadth in the −20° C. to 75° C. range.
A polyurethane ionomer composition comprising a blend of polymer with a polyurethane ionomer having the formula
- 9
- where
- A=a straight chain or branched chain aliphatic group, a substituted straight chain or branched chain aliphatic group or an aromatic or substituted aromatic group;
- B=a straight chain or branched chain aliphatic group, a substituted straight chain or branched chain aliphatic group or an aromatic or substituted aromatic group, a polyether or a polyester, and;
- n=1-300;
- M=Ba2+, Ca2+, Cs+, K+, Li+, Mg2+, Na+, Rb+, Sr2+, and Zn2+;
- R=H or C1-C3 alkyl and;
- and further wherein the polyurethane ionomer has a stable storage modulus (E′) having a 50° breadth in the −20° C. to 70° C. range.
A polyurethane ionomer composition comprising the reaction product of a polymer blended with a polyurethane ionomer which exhibits a visible light absortivity of less than 0.1 mm−1 (Ameasured/sample thickness) for visible light in the 480 to 650 nm range.
A polyurethane ionomer composition comprising a blend of a thermoplastic polymer with one or more polyurethane ionomers having a
- 10
- where
- A=a straight chain or branched chain aliphatic group, a substituted straight chain or branched chain aliphatic group or an aromatic or substituted aromatic group;
- B=a straight chain or branched chain aliphatic group, a substituted straight chain or branched chain aliphatic group or an aromatic or substituted aromatic group, a polyether or a polyester, and;
- n=1-300;
- M=Ba2+, Ca2+, Cs+, K+, Li+, Mg2+, Na+, Rb+, Sr2+, and Zn2+;
- R=H or C1-C3 alkyl;
- and further wherein the polyurethane ionomer has a stable storage modulus (E′) having a 50° breadth in the −20° C. to 70° C. range.
Dependencies are inferred from the claim text.