Bonding films
AssigneesSyensqo Specialty Polymers USA, LLC, Cytec Industries Inc.
InventorsChantal Louis, James Francis Pratte, Mohammad Jamal El-Hibri
Life of this patent
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Abstract
Bonding films comprising PEEK-PEoEK copolymers are compatible with polyaryletherketone chemistry thereby providing joined polyaryletherketone polymer parts with high fracture toughness and overall good mechanical properties.
Claims15
An assembly comprising a first component comprising a polymer (P1), a second component comprising a polymer (P2) and a film comprising at least one PEEK-PEoEK copolymer, the PEEK-PEoEK copolymer comprising at least 50 mol. %, collectively, of repeat units (RPEEK) and repeat units (RPEoEK), relative to a total number of moles of repeat units in the PEEK-PEoEK copolymer, wherein:
- repeat units (RPEEK) are repeat units of formula:
- and
- repeat units (RPEoEK) are repeat units of formula:
- where each R1 and R2, equal to or different from each other, is at each occurrence independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium;
- each a and b is independently selected from integers ranging from 0 to 4;
- the PEEK-PEoEK copolymer comprises the repeat units (RPEEK) and (RPEoEK) in a molar ratio (RPEEK)/(RPEoEK) ranging from 95/5 to 5/95;
- and
- said film being positioned between and bonded to said first and second components;
- and
- wherein the film has a thickness of from 15 to 800 μm.
An assembly comprising a first component comprising a polymer (P1), a second component comprising a polymer (P2) and a film comprising at least one PEEK-PEOEK copolymer, the PEEK-PEoEK copolymer comprising at least 50 mol. %, collectively, of repeat units (RPEEK) and repeat units (RPEoEK), relative to a total number of moles of repeat units in the PEEK-PEoEK copolymer, wherein:
- repeat units (RPEEK) are repeat units of formula:
- repeat units (RPEoEK) are repeat units of formula:
- where each R1 and R2, equal to or different from each other, is at each occurrence independently selected from the group consisting of halogen, alkyl, alkenyl, alkynyl, aryl, ether, thioether, carboxylic acid, ester, amide, imide, alkali or alkaline earth metal sulfonate, alkyl sulfonate, alkali or alkaline earth metal phosphonate, alkyl phosphonate, amine, and quaternary ammonium;
- each a and b is independently selected from integers ranging from 0 to 4;
- the PEEK-PEoEK copolymer comprises the repeat units (RPEEK) and (RPEoEK) in a molar ratio (RPEEK)/(RPEoEK) ranging from 95/5 to 5/95;
- and
- said film being positioned between and bonded to said first and second components;
- wherein the first component is a composite material comprising one or more layers comprising fibers and polymer (P1) and/or the second component is a composite material comprising one or more layers comprising fibers and polymer (P2), and
- wherein the fibers are carbon or glass fibers.
Dependencies are inferred from the claim text.