KR930006073A - Method of producing polyester - Google Patents

Method of producing polyester Download PDF

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Publication number
KR930006073A
KR930006073A KR1019910016024A KR910016024A KR930006073A KR 930006073 A KR930006073 A KR 930006073A KR 1019910016024 A KR1019910016024 A KR 1019910016024A KR 910016024 A KR910016024 A KR 910016024A KR 930006073 A KR930006073 A KR 930006073A
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KR
South Korea
Prior art keywords
calcium carbonate
weight
polyester
glycol
parts
Prior art date
Application number
KR1019910016024A
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Korean (ko)
Inventor
최우
박남규
박인보
Original Assignee
하기주
주식회사 코오롱
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 하기주, 주식회사 코오롱 filed Critical 하기주
Priority to KR1019910016024A priority Critical patent/KR930006073A/en
Publication of KR930006073A publication Critical patent/KR930006073A/en

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Abstract

본 발명은 폴리에스테르에 탄산 칼슘을 첨가하여 조형물의 표면 평활성과 내마모성이 우수한 폴리에스테르 제조 방법이다.The present invention is a method for producing a polyester having excellent surface smoothness and wear resistance by adding calcium carbonate to a polyester.

본 발명에서 탄산 칼슘은 카르복실산의 알칼리 금속염 또는 암모늄염의 단독 또는 혼합물로 전처리하여 글리콜에 첨가하여 탄산칼슘-글리콜 실린더를 제조한다.In the present invention, calcium carbonate is added to glycol by pretreatment with an alkali metal salt or ammonium salt of carboxylic acid alone or as a mixture to prepare a calcium carbonate-glycol cylinder.

상기의 탄산칼슘-글리콜 슬러리에 인산화합물을 첨가하고 분산매체를 가하여 탄산 칼슘의 농도가 10중량%인 탄산 칼슘 분산체를 만들고, 이를 폴리에스테르 초기 중축합 반응물에 첨가함으로써 본 발명은 구성된다.The present invention is constructed by adding a phosphate compound to the calcium carbonate-glycol slurry and adding a dispersion medium to form a calcium carbonate dispersion having a calcium carbonate concentration of 10% by weight, and adding it to the polyester initial polycondensation reaction product.

본 발명에 의하여 제조된 폴리에스테르는 필름으로 가공하였을 때 필름의 표면 평활성과 내구성, 주행성 등이 매우 우수하다.Polyester produced by the present invention is very excellent in the surface smoothness and durability of the film when processed into a film, runability and the like.

Description

폴리에스테르의 제조 방법Method of producing polyester

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

Claims (9)

디카르복실산 성분과 글리콜 성분으로부터 폴리에스테르를 제조함에 있어서, 카르복실산 화합물로 표면처리된 탄산 칼슘이 함유된 글리콜분산체에 인화합물을 첨가하여 탄산 칼슘-글리콜 슬러리를 만든 다음 이것을 폴리 에스테르 중합중에 첨가함을 특징으로 하는 폴리 에스테르의 제조 방법.In preparing polyester from the dicarboxylic acid component and the glycol component, a phosphorus compound is added to a glycol dispersion containing calcium carbonate surface-treated with a carboxylic acid compound to form a calcium carbonate-glycol slurry, which is then subjected to a polyester polymerization. It is added in the manufacturing method of polyester. 제1항에 있어서, 카르복실산 화합물은 카르복실산의 알카리염 및 암노늄염으로서, 더욱 코폴리(아크릴산, 아크릴산나트륨, 아크릴산 암모늄, 메타 아크릴산)이나 코폴리(아크릴산, 메타아크릴산 나트륨, 메타아크릴산 암모늄, 메타아크릴산)인 것을 특징으로 하는 방법.The carboxylic acid compound according to claim 1, wherein the carboxylic acid compound is an alkali salt and an ammonium salt of carboxylic acid. , Methacrylic acid). 제1항 또는 제2항에 있어서, 카르복실산 화합물은 알카리 금속과 암모늄기가 각각 15∼25% 치환된 분자량 5,000∼20,000의 코폴리(아크릴, 메타아크릴산)인 것을 특징으로 하는 방법.The method according to claim 1 or 2, wherein the carboxylic acid compound is a copoly (acrylic or methacrylic acid) having a molecular weight of 5,000 to 20,000 in which an alkali metal and an ammonium group are each substituted by 15 to 25%. 제1항에 있어서, 탄산 칼슘 100중량부에 대하여 0.1∼5.0중량부의 카르복실산 화합물으로 탄산 칼슘의 표면을 처리함을 특징으로 하는 방법.The method according to claim 1, wherein the surface of calcium carbonate is treated with 0.1 to 5.0 parts by weight of a carboxylic acid compound relative to 100 parts by weight of calcium carbonate. 제1항에 있어서, 탄산 칼슘은 평균 입경이 0.4∼1.2μm이고, 글리콜에의 투입량은 글리콜 100중량부에 대하여 카르복실산 화합물로 표면 처리된 탄산 칼슘 30∼50중량부 첨가하는 것을 특징으로 하는 방법.The calcium carbonate has an average particle diameter of 0.4 to 1.2 µm, and the amount of calcium carbonate added is 30 to 50 parts by weight of calcium carbonate surface-treated with a carboxylic acid compound based on 100 parts by weight of glycol. Way. 제1항에 있어서, 탄산 칼슘-글리콜 슬러리는 표면 처리된 탄산 칼슘과 글리콜의 혼합물에 더욱 인산화합물을 탄산 칼슘 100중량부에 대하여 0.1∼2.0중량부 첨가함을 특징으로 하는 방법.The method according to claim 1, wherein the calcium carbonate-glycol slurry further comprises 0.1 to 2.0 parts by weight of a phosphate compound based on 100 parts by weight of calcium carbonate to the surface-treated mixture of calcium carbonate and glycol. 제1항에 있어서, 탄산칼슘-글리콜 슬러리는 폴리에스테르에 첨가시 탄산 칼슘으로 환산하여 10중량% 이하의 농도로 균질화 되는 것을 특징으로 하는 방법.The method of claim 1, wherein the calcium carbonate-glycol slurry is homogenized to a concentration of 10% by weight or less in terms of calcium carbonate when added to the polyester. 제1항 또는 제7항에 있어서, 탄산칼슘-글리콜 슬러리는 폴리에스테르 100중량부에 대하여 탄산 칼슘의 양으로 환산하여 0.01∼2.0중량부를 폴리에스테르 초기 중축합 공정후 첨가되는 것을 특징으로 하는 방법.The method according to claim 1 or 7, wherein the calcium carbonate-glycol slurry is added in an amount of 0.01 to 2.0 parts by weight based on the amount of calcium carbonate based on 100 parts by weight of polyester after the initial polycondensation process of the polyester. 제1항 또는 제5항에 있어서, 인산화합물은 피로인산, 메타-인산, 인산 또는 아인산 등의 알칼리 금속염임을 특징으로 하는 방법.The method of claim 1 or 5, wherein the phosphate compound is an alkali metal salt such as pyrophosphoric acid, meta-phosphoric acid, phosphoric acid or phosphorous acid. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019910016024A 1991-09-13 1991-09-13 Method of producing polyester KR930006073A (en)

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KR1019910016024A KR930006073A (en) 1991-09-13 1991-09-13 Method of producing polyester

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Application Number Priority Date Filing Date Title
KR1019910016024A KR930006073A (en) 1991-09-13 1991-09-13 Method of producing polyester

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100437994B1 (en) * 2000-06-24 2004-07-02 김장권 Automatic Egg-Grader and Packer System

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100437994B1 (en) * 2000-06-24 2004-07-02 김장권 Automatic Egg-Grader and Packer System

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