Block copolymers with polyester moieties and applications thereof
AssigneeISP Investments Inc.
InventorsOsama M. MUSA, Matthew Adam Henry FARMER, Steven Peter ARMES
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Abstract
The invention provides block copolymers comprising polyester linkages. These copolymers are obtained by the reaction of polyester forming precursors, RAFT agents, and radically polymerizable monomers. The invention further provides compositions comprising the block copolymers and applications thereof in various industrial areas. The invention furthermore provides a method for reducing the particle size of an active ingredient by obtaining a composition that comprises colloidal particles of the block copolymers and the active ingredient and subjecting the composition to a suitable size reduction operation. Each a, b, and R11 is described herein.
Claims47
A polymer having the structure
- wherein R4 is a C1-C40 functionalized or unfunctionalized hydrocarbyl moiety or
- each R1 and R7 is independently a C1-C11 functionalized or unfunctionalized hydrocarbyl moiety;
- each R2 and R5 is independently hydrogen or methyl;
- each R3 and R6 is independently a C1-C40 functionalized or unfunctionalized hydrocarbyl moiety;
- each X is independently oxygen or NR8;
- each R8 is independently hydrogen or C1-C5 alkyl;
- each Q1 and Q5 is independently a C1-C10 functionalized or unfunctionalized hydrocarbylene moiety;
- each Q2 and Q4 is independently a C3-C8 functionalized or unfunctionalized alkylene moiety;
- each Q3 is independently a functionalized or unfunctionalized hydrocarbylene moiety;
- and each a, b, d, and e independently ranges from about 5 to about 200, and c ranges from 1 to about 100.
A composition comprising a polymer having the structure
- wherein R4 is a C1-C40 functionalized or unfunctionalized hydrocarbyl moiety or
- each R1 and R7 is independently a C1-C11 functionalized or unfunctionalized hydrocarbyl moiety;
- each R2 and R5 is independently hydrogen or methyl;
- each R3 and R6 is independently a C1-C40 functionalized or unfunctionalized hydrocarbyl moiety;
- each X is independently oxygen or NR8;
- each R8 is independently hydrogen or C1-C5 alkyl;
- each Q1 and Q5 is independently a C1-C10 functionalized or unfunctionalized hydrocarbylene moiety;
- each Q2 and Q4 is independently a C3-C8 functionalized or unfunctionalized alkylene moiety;
- each Q3 is independently a functionalized or unfunctionalized hydrocarbylene moiety;
- and each a, b, d, and e independently ranges from about 5 to about 200, and c ranges from 1 to about 100.
A method for reducing particle size of at least one active ingredient comprising:
- (a) contacting to form a mixture, said active ingredient in a solid form and a colloidal composition comprising a polymer having the structure
- wherein R4 is a C1-C40 functionalized or unfunctionalized hydrocarbyl moiety or
- each R1 and R7 is independently a C1-C11 functionalized or unfunctionalized hydrocarbyl moiety;
- each R2 and R5 is independently hydrogen or methyl;
- each R3 and R6 is independently a C1-C40 functionalized or unfunctionalized hydrocarbyl moiety;
- each X is independently oxygen or NR8;
- each R8 is independently hydrogen or C1-C5 alkyl;
- each Q1 and Q5 is independently a C1-C10 functionalized or unfunctionalized hydrocarbylene moiety;
- each Q2 and Q4 is independently a C3-C8 functionalized or unfunctionalized alkylene moiety;
- each Q3 is independently a functionalized or unfunctionalized hydrocarbylene moiety;
- and each a, b, d, and e independently ranges from about 5 to about 200, and c ranges from 1 to about 100;
- and (b) subjecting said mixture to at least one particle size reduction operation.
Dependencies are inferred from the claim text.