JP2011084737A5

JP2011084737A5 -

Info

Publication number: JP2011084737A5
Application number: JP2010206490A
Authority: JP
Filing date: 2010-09-15
Publication date: 2013-09-12
Anticipated expiration: 2030-09-15

Description

［比較例７］
実施例８における３つ以上の官能基を有する化合物（Ｃ）（ポリオキシプロピレントリメチロールプロパン）の添加量を０．５ｇに変更し、重縮合反応時間を２３０分間に変更したこと以外は、実施例８と同様に行い、ポリエステル樹脂を得た。
［比較例８］
比較例７における３つ以上の官能基を有する化合物（Ｃ）をトリメチロールプロパンに変更し、重縮合反応時間を２５０分間に変更したこと以外は、比較例７と同様に行い、ポリエステル樹脂を得た。 [Comparative Example 7]
Except that the addition amount of the compound (C) having three or more functional groups (polyoxypropylene trimethylolpropane) in Example 8 was changed to 0.5 g, and the polycondensation reaction time was changed to 230 minutes. In the same manner as in Example 8, a polyester resin was obtained.
[Comparative Example 8]
A polyester resin was obtained in the same manner as in Comparative Example 7, except that the compound (C) having three or more functional groups in Comparative Example 7 was changed to trimethylolpropane and the polycondensation reaction time was changed to 250 minutes. It was.

Claims

Esterification reaction of dicarboxylic acid component (A-1) composed of dicarboxylic acid and diol component (B) or transesterification of dicarboxylic acid component (A-2) composed of ester-forming derivative of dicarboxylic acid and diol component (B) In the method for producing a polyester resin by performing the reaction and the subsequent polycondensation reaction, 0.1 to 2.0 weights of the compound (C) having three or more functional groups with respect to 100 weight parts of the produced polyester resin In the polyester resin production process, the compound (C) having three or more functional groups is a polyfunctional compound having three or more functional groups, and has a terminal structure having the functional groups. At least one of the following formula (2)

[In the formula, R represents a hydrocarbon group having 1 to 15 carbon atoms, n represents an integer of 1 to 10 and represents a repeating unit, and X represents a hydroxyl group, an aldehyde group, a carboxylic acid group, a sulfo group, an amino group. And a glycidyl group, an isocyanate group, a carbodiimide group, an oxazoline group, an oxazine group, an ester group, an amide group, a silanol group, and a silyl ether group. A method for producing a polyester resin comprising using a titanium compound (D-1) and / or a tin compound (D-2) as a reaction catalyst for the esterification reaction or transesterification reaction.

The compound (C) having three or more functional groups is a polyfunctional compound having three or more functional groups, and at least one of the terminal structures having the functional group is represented by the following formula (1)

2. The polyester resin according to claim 1, wherein R represents a hydrocarbon group having 1 to 15 carbon atoms, and n is an integer of 1 to 10 and represents a repeating unit. Manufacturing method.

The method for producing a polyester resin according to claim 1 or 2, wherein the compound (C) having three or more functional groups has a viscosity at 25 ° C of from 100 m · Pa to 15000 m · Pa.

The method for producing a polyester resin according to any one of claims 1 to 3, wherein the dicarboxylic acid component (A-1) is an aromatic dicarboxylic acid containing terephthalic acid as a main component.

The method for producing a polyester resin according to any one of claims 1 to 4, wherein the diol component (B) is an aliphatic diol mainly composed of 1,4-butanediol.

The esterification reaction or transesterification reaction is carried out by subjecting the diol component (B) to the dicarboxylic acid component (A-1) or dicarboxylic acid component (A-2) molar ratio ((B) / (A-1) or (B). / (A-2)) is performed in the range of 1.1-2.0, The manufacturing method of the polyester resin in any one of Claims 1-5 characterized by the above-mentioned.

Compound (C) having three or more functional groups is mixed with dicarboxylic acid component (A-1) or dicarboxylic acid component (A-2) and diol component (B) at the start of esterification reaction or transesterification reaction. The method for producing a polyester resin according to claim 1, wherein the polyester resin is added to the place.

The method for producing a polyester resin according to any one of claims 1 to 7, wherein the esterification reaction or the transesterification reaction is performed under a reduced pressure of 13.3 to 79.9 kPa.

9. The esterification reaction or transesterification reaction, wherein the diol component (B) is additionally added at a stage from the start of the esterification reaction or transesterification reaction to the start of the polycondensation reaction. The manufacturing method of the polyester resin in any one.