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US 10,023,776 B2Granted
Preparation of a self-bonding thermoplastic elastomer using an in situ adhesion promoter
AssigneeSaint-Gobain Performance Plastics Corporation
InventorDuan Li Ou
Life of this patent
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Abstract
The invention describes compositions that include amine-containing silsesquioxane or an amine-containing alkyltrialkoxysilane and a thermoplastic elastomer as well as methods of preparation of the compositions that are useful as self-bonding adhesives for various substrates.
Claims10
An article comprising:
- a first layer comprising a fluoropolymer or a polymeric material comprising hydroxyl groups;
- and
- a second layer adjacent to the first layer, the second layer comprising a self-bonding composition comprising a mixture of an adhesion promoter comprising the formula:
- wherein a is an integer from about 1 to about 3,000;
- wherein b is an integer from about 1 to about 3,000;
- wherein c is an integer from 1 to about 3,000;
- wherein R1 is a branched or unbranched C1 to C6 hydrocarbon;
- wherein R2 and R3 are each independently a branched or unbranched C1 to C6 hydrocarbon;
- wherein at least one of R4 and R5 are each independently a branched or unbranched C1 to C6 hydrocarbon substituted with NH2, NHR6 or NR6R7 or a branched or unbranched C1 to C6 hydrocarbon, provided at least one of R4 or R5 is substituted with NH2, NHR6 or NR6R7;
- wherein R6 and R7 are each independently a branched or unbranched C1 to C6 hydrocarbon;
- wherein each X and Y, independently, is a covalent bond, a Si atom, R8 or a hydrogen atom, wherein R8 is a branched or unbranched C1 to C6 hydrocarbon, wherein the Si atom can be attached to an oxygen atom, R8 or R4;
- and a thermoplastic polyurethane elastomer,
- wherein the adhesion promoter is present from about 0.1 weight % to about 5.0 weight % of the total weight of the thermoplastic polyurethane elastomer.
10 more elements
Dependencies are inferred from the claim text.