Adhesive
AssigneeDaicel Corporation
InventorsHiroyoshi Koduma, Hiroki Tanaka
Life of this patent
Estimating the term…
Abstract
Provided is an adhesive as follows. The adhesive can bond/secure an adherend to a support with maintaining high adhesiveness during the existence of the need for securing of the adherend to the support, even in a high-temperature environment or in an environment with abrupt temperature change. The adhesive enables debonding of the adherend from the support without breakage of the adherend when the securing becomes unnecessary. The adhesive can be easily removed when remained on the adherend after debonding. The adhesive according to the present invention contains (A) a multivalent vinyl ether compound, (B) a compound including two or more of a constitutional unit represented by Formula (b), and (C) a thermoplastic resin. In the formula, X is selected from hydroxy and carboxy.
Claims15
An adhesive comprising:
- (A) a multivalent vinyl ether compound;
- (B) a compound including two or more of a constitutional unit represented by Formula (b);
- and
- (C) a thermoplastic resin,
- Formula (b) expressed as follows:
- wherein Z1 represents a group resulting from removing (n1+2) hydrogen atoms from a structural formula of a compound selected from a saturated or unsaturated aliphatic hydrocarbon, a saturated or unsaturated alicyclic hydrocarbon, an aromatic hydrocarbon, a heterocyclic compound, and a compound including two or more of these compounds bonded to each other through a single bond or a linkage group;
- X is, independently in each occurrence, selected from hydroxy and carboxy;
- and n1 represents an integer of 1 or more, where n1 occurrences of X may be identical to or different from each other,
- wherein the thermoplastic resin (C) is at least one compound selected from the group consisting of:
- poly(vinyl acetal) resins;
- and
- polyester resins.
An adhesive film comprising:
- a polymer between:
- (A) a multivalent vinyl ether compound, and
- (B) a compound including two or more of a constitutional unit represented by Formula (b);
- and
- (C) a thermoplastic resin,
- Formula (b) expressed as follows:
- wherein Z1 represents a group resulting from removing (n1+2) hydrogen atoms from a structural formula of a compound selected from a saturated or unsaturated aliphatic hydrocarbon, a saturated or unsaturated alicyclic hydrocarbon, an aromatic hydrocarbon, a heterocyclic compound, and a compound including two or more of these compounds bonded to each other through a single bond or a linkage group;
- X is, independently in each occurrence, selected from hydroxy and carboxy;
- and n1 represents an integer of 1 or more, where n1 occurrences of X may be identical to or different from each other.
Dependencies are inferred from the claim text.