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US 9,670,300 B2Granted
Copolymers including ultraviolet absorbing groups and fluoropolymer compositions including them
Assignee3M Innovative Properties Company
InventorsDavid B. Olson, Patricia M. Savu, Timothy J. Hebrink
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Abstract
A thermoplastic copolymer that includes a first divalent unit having a pendent ultraviolet absorbing group and a second divalent unit that is fluorinated. A fluoropolymer composition including the thermoplastic copolymer is also disclosed.
Claims20
A copolymer comprising:
- a first divalent unit comprising a pendent ultraviolet absorbing group comprising a triazine;
- and
- a second divalent unit represented by formula:
- wherein
- Rf represents a fluoroalkyl group having from 1 to 6 carbon atoms optionally interrupted by one —O— group, or Rf represents a polyfluoropolyether group;
- R1 is hydrogen or methyl;
- Q is a bond, —SO2—N(R)—, or —C(O)—N(R)—, wherein R is alkyl having from 1 to 4 carbon atoms or hydrogen;
- and
- m is an integer from 0 to 11,
- wherein the copolymer is a thermoplastic copolymer.
7 more elements
A composition comprising:
- a fluoropolymer;
- a copolymer comprising:
- a first divalent unit comprising a pendent ultraviolent absorbing group;
- and
- a second divalent unit represented by formula:
- wherein
- Rf represents a fluoroalkyl group having from 1 to 6 carbon atoms optionally interrupted by one —O— group, or Rf represents a polyfluoropolyether group;
- R1 is hydrogen or methyl;
- Q is a bond, —SO2—N(R)—, or —C(O)—N(R)—, wherein R is alkyl having from 1 to 4 carbon atoms or hydrogen;
- and
- m is an integer from 0 to 11,
- wherein the copolymer is a thermoplastic copolymer;
- and
- a second copolymer, wherein the second copolymer is a copolymer of methyl methacrylate and an acrylate- or methacrylate-functional ultraviolet absorbing group.
11 more elements
Dependencies are inferred from the claim text.