KR960017755A

KR960017755A - Biaxially Oriented Polyethylenenaphthalate Film and Manufacturing Method Thereof

Info

Publication number: KR960017755A
Application number: KR1019940030631A
Authority: KR
Inventors: 이광형; 이관형; 이영진
Original assignee: 안시환; 주식회사 에스 케이 씨
Priority date: 1994-11-21
Filing date: 1994-11-21
Publication date: 1996-06-17
Also published as: KR0163066B1

Abstract

본 발명은 이축배향 폴리에틸렌나프탈레이트 필름 및 이의 제조 방법에 관한 것이다. 폴리에틸렌나프탈레이트 중에 폴리에틸렌나프탈레이트 중량을 기준으로 평균입경이 0.01 내지 3㎛ 인 경질탄산칼슘을 0.01 내지 4중량%, 평균입경이 0.1 내지 3㎛이고 인 구상형실리카를 0.01 내지 4중량%, 평균입경이 0.005 내지 3㎛이고 모스 경도가 6이상인 세타 알루미나를 0.01 내지 4중량%, 실란커플링제를 활제인 알루미나의 중량을 기준으로 0.05 내지 5중량% 포함하여 제조된 폴리에틸렌나프탈레이트 필름은 각종 물성이 좋다. 즉, 표면 평활성 및 내마모성과 내스크래치성 등의 기계적 물성을 포함하여 각종 필름의 특성이 우수하여 콘덴서용, 포장용, 사진필름용, 자기기록용, 산업용 등의 여러 분야에서 본 발명의 필름을 폭넓게 사용할 수 있다.The present invention relates to a biaxially oriented polyethylene naphthalate film and a method for producing the same. 0.01 to 4% by weight of hard calcium carbonate having an average particle diameter of 0.01 to 3 µm, and an average particle diameter of 0.1 to 3 µm and 0.01 to 4% by weight of spherical silica in polyethylene naphthalate, based on the weight of polyethylene naphthalate Polyethylene naphthalate film prepared by containing 0.01 to 4% by weight of theta alumina having a 0.005 to 3㎛, Mohs hardness of 6 or more and 0.05 to 5% by weight based on the weight of the alumina lubricating agent is good in various physical properties. . That is, it is excellent in the characteristics of various films including mechanical properties such as surface smoothness and abrasion resistance and scratch resistance, so that the film of the present invention can be widely used in various fields such as capacitor, packaging, photographic film, magnetic recording, industrial, etc. Can be.

Description

Biaxially Oriented Polyethylenenaphthalate Film and Manufacturing Method Thereof

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

Claims

0.01 to 4% by weight of hard calcium carbonate having an average particle diameter of 0.01 to 3 µm, and 0.01 to 4% by weight of spherical silica having an average particle diameter of 0.1 to 1 µm in polyethylene naphthalate, based on the weight of polyethylene naphthalate. 0.01 to 4 wt% of theta alumina having 0.005 to 3 μm and Mohs hardness of 6 or more, and 0.05 to 5 wt% of the at least one silane coupling agent selected from the group represented by the following formula based on the weight of the alumina lubricant. Biaxially orientated polyethylene naphthalate film, characterized in that.

Provided that RI in the silane compound is an alkyl group.

Dispersing theta alumina having an average particle diameter of 0.005 to 3 µm and a Mohs hardness of 6 or more in the ethylene glycol slurry; Surface treating the alumina by adding at least one silane coupling agent selected from the group represented by 0.05 to 5 wt% based on the weight of the theta alumina on the ethylene glycol slurry;

Provided that RI in the silane compound is an alkyl group.

Condensation polymerization of the surface-treated ethylene glycol slurry, hard calcium carbonate having an average particle diameter of 0.01 to 3 μm, and spherical silica having an average particle diameter of 0.1 to 1 μm to a polyethylene naphthalate monomer obtained by a transesterification reaction; And biaxially stretching the melted polyethylene naphthalate polymer obtained by the polycondensation reaction to produce a biaxially oriented polyethylene naphthalate film.

The method of claim 2, wherein theta alumina is added in an amount of 0.01 to 4 wt% based on polyethylene naphthalate.

The method of claim 2, wherein the hard calcium carbonate is added in an amount of 0.01 to 4% by weight based on polyethylene naphthalate.

The method for producing a biaxially oriented polyethylene naphthalate film according to claim 2, wherein the spherical silica is added in an amount of 0.01 to 4% by weight based on polyethylene naphthalate.

※ Note: The disclosure is based on the initial application.