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US 11,098,162 B2Granted
Polyarylether ketone imide adhesives
AssigneeThe Boeing Company
InventorsChristopher H. Childers, Gregg R. Bogucki, Christopher S. Steinman, Stephen R. Heinz
Life of this patent
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Abstract
Aspects of the present disclosure generally describe polyarylether ketones and methods of use. In some aspects, a composition includes one or more polymers of formula (IV):
Claims25
A method of forming a polymer, the method comprising:
- A. forming a composition by introducing into a reactor:
- (1) aluminum chloride,
- (2) at least one of isophthaloyl chloride or terephthaloyl chloride,
- (3) an ether ketone ether represented by the structure:
- (4) an ether imide represented by the structure:
- wherein each R is independently selected from the group consisting of
- wherein each L is independently selected from the group consisting of —CH2—, —(CH3)2C—, —O—, —S—, —SO2— and —CO—, wherein each Q is independently selected from the group consisting of —S—, —SO2—, —(CF3)2C—, —O—, and —(CH3)2C—, and wherein each j is a positive integer;
- B. mixing the composition;
- C. introducing a capping agent to the composition, wherein the capping agent is selected from the group consisting of
- benzyl, and combination(s) thereof, wherein R′ is selected from the group consisting of hydrogen, halo, C1-C20 alkyl, and cyano;
- and
- D. obtaining a polymer.
9 more elements
A method for forming a bonded prepreg stack, the method comprising:
- A. coating a thermoplastic prepreg with a polymer to form a coated thermoplastic prepreg, and
- B. introducing the coated thermoplastic prepreg to an adherend, wherein the polymer comprises:
- (1) at least one of
- (2)
- or
- (3)
- wherein each R is independently selected from the group consisting of
- wherein each L is independently selected from the group consisting of —CH2—, —(CH3)2C—, —O—, —S—, —SO2— and —CO—, wherein each Q is independently selected from the group consisting of —S—, —SO2—, —(CF3)2C—, —O—, and —(CH3)2C—, and wherein each j is a positive integer;
- and
- (4) a capping agent selected from the group consisting of
- and benzyl, wherein R′ is selected from the group consisting of hydrogen, halo, C1-C20 alkyl, and cyano, wherein the molecular weight of the polymer is from about 50 kDa to about 150 kDa.
8 more elements
A method for forming a bonded prepreg stack, the method comprising:
- coating an adherend with a polymer to form a coated adherend, and
- introducing the coated adherend to a thermoplastic prepreg, wherein the polymer comprises:
- (1) at least one of
- (2)
- or
- (3)
- wherein each R is independently selected from the group consisting of
- and wherein each L is independently selected from the group consisting of —CH2—, —(CH3)2C—, —O—, —S—, —SO2— and —CO—, wherein each Q is independently selected from the group consisting of —S—, —SO2—, —(CF3)2C—, —O—, and —(CH3)2C—, and wherein each j is a positive integer;
- and
- (4) a capping agent selected from the group consisting of
- and benzyl, wherein R′ is selected from the group consisting of hydrogen, halo, C1-C20 alkyl, and cyano, wherein the molecular weight of the polymer is from about 50 kDa to about 150 kDa.
8 more elements
Dependencies are inferred from the claim text.