Method for producing liquid-crystal polyester processed product
A method for producing a liquid-crystal polyester processed product having improved adhesion, includes a preliminary step of providing a formed body of a liquid-crystal polyester resin including a repeating unit represented by general formula (1); a step (I) of performing an oxidation treatment on a surface of the liquid-crystal polyester resin formed body; and a step (II) of stacking a resin layer on the surface on which the oxidation treatment has been performed to produce a laminate.
1. A method for producing a liquid-crystal polyester processed product, comprising:
a preliminary step of providing a formed body of a liquid-crystal polyester resin including a repeating unit derived from 4-hydroxy-2-methylbenzoic acid, represented by the following formula,
said preliminary step including obtaining the liquid-crystal polyester resin by polycondensation of the following components:
(A) 4-hydroxy-2-methylbenzoic acid, and/or a derivative thereof, and
(B) an aromatic hydroxycarboxylic acid other than component (A),
wherein a content of component (A) is 5 mol % or more but 50 mol % or less relative to a total content of component (A) and component (B), followed by obtaining a formed body of the liquid-crystal polyester resin;
a step (I) of performing an oxidation treatment on a surface of the liquid-crystal polyester resin formed body; and
a step (II) of stacking a resin layer on the surface on which the oxidation treatment has been performed to produce a laminate.
2. The method for producing a liquid-crystal polyester processed product according to claim 1 , wherein the oxidation treatment in step (II) is a plasma treatment, a corona treatment, an ultraviolet (UV) irradiation treatment, a flame treatment, an electron beam treatment, a chemical treatment with an oxidizing agent, or a heat treatment in the presence of oxygen.
3. A method for producing a liquid-crystal polyester processed product, comprising:
a preliminary step of providing a formed body of a liquid-crystal polyester resin including a repeating unit derived from 4-hydroxy-2-methylbenzoic acid, represented by the following formula,
said preliminary step including obtaining the liquid-crystal polyester resin by polycondensation of the following components:
(A) 4-hydroxy-2-methylbenzoic acid, and/or a derivative thereof,
(B) an aromatic hydroxycarboxylic acid other than component (A),
(C) a dihydroxy compound,
(D) a dicarboxylic acid compound,
(E) an aliphatic diol, and
(F) an aliphatic dicarboxylic acid,
wherein a content of component (A) is 5 mol % or more but 50 mol % or less relative to a total content of components (A) to (F), followed by obtaining a formed body of the liquid-crystal polyester resin;
a step (I) of performing an oxidation treatment on a surface of a liquid-crystal polyester resin formed body including a repeating unit represented by general formula (1); and
a step (II) of stacking a resin layer on the surface on which the oxidation treatment has been performed to produce a laminate.
4. The method for producing a liquid-crystal polyester processed product according to claim 1 , wherein the oxidation treatment in step (II) is a plasma treatment, a corona treatment, an ultraviolet (UV) irradiation treatment, a flame treatment, an electron beam treatment, a chemical treatment with an oxidizing agent, or a heat treatment in the presence of oxygen.