Ovenware and liquid crystalline polyester resin composition for molding ovenware

Patent metadata

Field	Value
Publication number	US-10912410-B2
Application number	US-201716322223-A
Country	US
Kind code	B2
Filing date	Aug 2, 2017
Priority date	Aug 4, 2016
Publication date	Feb 9, 2021
Grant date	Feb 9, 2021

Abstract

An ovenware is a molded article of a resin composition containing a liquid crystalline polyester resin, an inorganic filler, and a fatty acid compound, in which, when the ovenware is heated at 250° C., a total generated concentration of notional and decanal derived from the fatty acid compound is 1 vol ppb or less.

First claim

The invention claimed is:

1. An ovenware which is a molded article of a resin composition containing a liquid crystalline polyester resin, an inorganic filler, and a fatty acid compound which is at least one of a fatty acid, a fatty acid metal salt, and a fatty acid ester,
wherein, when the ovenware is heated at 250° C., a total generated concentration of nonanal and decanal derived from the fatty acid compound is 1 vol ppb or less.

2. The ovenware according to claim 1 ,
wherein an amount of the fatty acid compound is 0.001 parts by mass or more and 0.5 parts by mass or less with respect to 100 parts by mass of the liquid crystalline polyester resin.

3. The ovenware according to claim 1 ,
wherein the fatty acid compound has 12 to 24 carbon atoms.

4. The ovenware according to claim 1 ,
wherein the fatty acid compound is a fatty acid metal salt.

5. The ovenware according to claim 4 ,
wherein a metal of the fatty acid metal salt is at least one type selected from the group consisting of aluminum, barium, lithium, magnesium, calcium, zinc, sodium, and potassium.

6. The ovenware according to claim 1 ,
wherein an amount of the inorganic filler is 50 parts by mass or more and 100 parts by mass or less with respect to 100 parts by mass of the liquid crystalline polyester resin.

7. The ovenware according to claim 1 ,
wherein the liquid crystalline polyester resin has a repeating unit represented by Formula (1):
—O—Ar 1 —CO—  (1)

wherein in Formula (1), Ar 1 represents a phenylene group, a naphthylene group, or a biphenylylene group; at least one hydrogen atom in the group represented by Ar 1 may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms.

8. The ovenware according to claim 1 ,
wherein the liquid crystalline polyester resin has a repeating unit represented by Formula (2):
—CO—Ar 2 —CO—  (2)

wherein in Formula (2), Ar 2 represents a phenylene group, a naphthylene group, a biphenylylene group, or a group represented by Formula (4); at least one hydrogen atom included in Ar 2 may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms;
—Ar 4 —Z—Ar 5 —  (4)

wherein in Formula (4), Ar 4 and Ar 5 each independently represent a phenylene group or a naphthylene group; and
Z represents an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, or an alkylidene group having 1 to 10 carbon atoms.

9. The ovenware according to claim 1 ,
wherein the liquid crystalline polyester resin has a repeating unit represented by Formula (3):
—X—Ar 3 —Y—  (3)

wherein in Formula (3), Ar 3 represents a phenylene group, a naphthylene group, a biphenylylene group, or a group represented by Formula (4);
X and Y each independently represent an oxygen atom or an imino group (—NH—); and
at least one hydrogen atom included in Ar 3 may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms;
—Ar 4 —Z—Ar 5 —  (4)

wherein in Formula (4), Ar 4 and Ar 5 each independently represent a phenylene group or a naphthylene group; and
Z represents an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, or an alkylidene group having 1 to 10 carbon atoms.

10. A liquid crystalline polyester resin composition for molding an ovenware which is a resin composition containing a liquid crystalline polyester resin, an inorganic filler, and a fatty acid compound which is at least one of a fatty acid, a fatty acid metal salt, and a fatty acid ester,
wherein, when the ovenware is heated at 250° C., a total generated concentration of nonanal and hexanal is 1 vol ppb or less.

11. The liquid crystalline polyester resin composition according to claim 10 ,
wherein the fatty acid compound has 12 to 24 carbon atoms.

12. The liquid crystalline polyester resin composition according to claim 10 ,
wherein the fatty acid compound is a fatty acid metal salt.

13. The liquid crystalline polyester resin composition according to claim 12 ,
wherein a metal of the fatty acid metal salt is at least one type selected from the group consisting of aluminum, barium, lithium, magnesium, calcium, zinc, sodium, and potassium.

14. The liquid crystalline polyester resin composition according to claim 10 ,
wherein an amount of the inorganic filler is 50 parts by mass or more and 100 parts by mass or less with respect to 100 parts by mass of the liquid crystalline polyester resin.

15. The liquid crystalline polyester resin composition according to claim 10 ,
wherein the liquid crystalline polyester resin has a repeating unit represented by Formula (1):
—O—Ar 1 —CO—  (1)

wherein in Formula (1), Ar 1 represents a phenylene group, a naphthylene group, or a biphenylylene group; at least one hydrogen atom in the group represented by Ar 1 may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms.

16. The liquid crystalline polyester resin composition according to claim 10 ,
wherein the liquid crystalline polyester resin has a repeating unit represented by Formula (2):
—CO—Ar 2 —CO—  (2)

wherein in Formula (2), Ar 2 represents a phenylene group, a naphthylene group, a biphenylylene group, or a group represented by Formula (4); at least one hydrogen atom included in Ar 2 may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms;
—Ar 4 —Z—Ar 5 —  (4)

wherein in Formula (4), Ar 4 and Ar 5 each independently represent a phenylene group or a naphthylene group; and
Z represents an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, or an alkylidene group having 1 to 10 carbon atoms.

17. The liquid crystalline polyester resin composition according to claim 10 ,
wherein the liquid crystalline polyester resin has a repeating unit represented by Formula (3):
—X—Ar 3 —Y—  (3)

wherein in Formula (3), Ar 3 represents a phenylene group, a naphthylene group, a biphenylylene group, or a group represented by Formula (4);
X and Y each independently represent an oxygen atom or an imino group (—NH—); and
at least one hydrogen atom included in Ar 3 may be substituted with a halogen atom, an alkyl group having 1 to 10 carbon atoms, or an aryl group having 6 to 20 carbon atoms;
—Ar 4 —Z—Ar 5 —  (4)

wherein in Formula (4), Ar 4 and Ar 5 each independently represent a phenylene group or a naphthylene group; and
Z represents an oxygen atom, a sulfur atom, a carbonyl group, a sulfonyl group, or an alkylidene group having 1 to 10 carbon atoms.

Assignees

• Sumitomo Chemical Co

Inventors

• Saito Shintaro

Classifications

• C08G63/66

  Polyesters containing oxygen in the form of ether groups (C08G63/42, C08G63/58 take precedence) · CPC title

• B65D1/26

  Thin-walled containers, e.g. formed by deep-drawing operations {(B65D1/165 takes precedence)} · CPC title

• C08K3/013

  Fillers, pigments or reinforcing additives · CPC title

• A47J27/00

  Cooking-vessels (A47J29/00 - A47J33/00 take precedence) · CPC title

• C08K5/09

  Carboxylic acids; Metal salts thereof; Anhydrides thereof · CPC title