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US 7,235,302 B2Granted
Fluoropolymer bonding composition and method
Assignee3M Innovative Properties Company
InventorsNaiyong Jing, Trang D. Pham, Andrew M. Hine
Life of this patent
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Abstract
A multi-layer structure includes a fluoropolymer bonded to a substrate. The structure is prepared by exposing a bonding composition to actinic radiation, such as ultraviolet radiation, to form the bond. The bonding composition includes a light-absorbing compound and an electron donor. The bonding composition includes non-adhesive materials.
Claims11
An article comprising:
- a first subsrate having a surface;
- and
- a second substrate having a surface,
- wherein the surface of the first substrate contacts the surface of the second substrate, and
- wherein each of the first and second substrates in independently comprise a matrix material selected from a metal, a glass, an organic-inorganic composite, a fluropolymer, and a non-fluoropolymer polymer with the proviso that at least one of the first substrate and the second substrate is a fluoropolymer that forms a mixture with a bonding composition, wherein the bonding compositton includes a light-absorbing compound that absorbs light between 200 nm and 400 nm, and an electron donor that is distinct from the light absorbing compound, such that when the bonding composition is exposed to actinic radiation of a wavelength that is absorbed by the light-absorbing compound, free radicals are generated at the interface of the first and second substrates thereby enhancing the bonding of the first substrate to the second substrate, further wherein the electron donor is an alkylamine.
2 more elements
An article comprising:
- a first substrate having a surface;
- and
- a second substrate having a surface,
- wherein the surface of the first substrate contacts the surface of the second substrate, and
- wherein each of the first and second substrates independently comprise a matrix material selected from a metal, a glass, an organic-inorganic composite, a fluropolymer, and a non-fluoropolymer polymer with the proviso that at least one of the first substrate and the second substrate is a fluoropolymer that forms a mixture with a bonding composition, wherein the bonding compositton includes a light-absorbing compound that absorbs light between 200 nm and 400 nm, and an electron donor that is distinct from the light absorbing compound, such that when the bonding composition is exposed to actinic radiation of a wavelength that is absorbed by the light-absorbing compound, free radicals are generated at the interface of the first and second substrates thereby enhancing the bonding of the first substrate to the second substrate, further wherein the electron donor is an amino-substituted organosilane having a hydrolyzable substituent.
2 more elements
Dependencies are inferred from the claim text.