KR930016466A - 폴리카보네이트 및 그의 용도 - Google Patents

폴리카보네이트 및 그의 용도 Download PDF

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KR930016466A
KR930016466A KR1019930000258A KR930000258A KR930016466A KR 930016466 A KR930016466 A KR 930016466A KR 1019930000258 A KR1019930000258 A KR 1019930000258A KR 930000258 A KR930000258 A KR 930000258A KR 930016466 A KR930016466 A KR 930016466A
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마사히데 다나까
다다아끼 후지모또
가즈노리 다까하따
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다께바야시 쇼오고
미쓰이세끼유 가가꾸고오교오 가부시끼가이샤
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Abstract

본 발명의 폴라카보네이트는, 폴리글리세린의 프로필렌옥시드 부가물등의 부가물로부터 유도된 폴리카보네이트이며, 본 발명의 윤활유는, 상기 폴리카보네이트와, 필요에 따라서, -C2H4O-기 및/또는 -CH2CH(CH3)O-기를 그의 주쇄내에 갖는 특정 폴리카보네이트를 함유하는 것으로 자동차 에어콘과 전기냉동기등의 냉동기용 윤활유로서 사용할 수 있으며 특히, 고점도 윤활유를 사용하는 냉동기용 윤활유, 예를들어, 자동 회전식 에어콘용 윤활유로서 적합하고, 또한 R-134a등의 오존층 비파괴성 수소화 후루오로카본을 냉매로서 사용하는 냉동기용 윤활유로서 적합하다.

Description

폴리카보네이트 및 그의 용도
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 실시예1에서 얻어진 폴라카보네이트의 적외선 흡수 스펙트럼도, 제2도는 실시예3에서 얻어진 폴리카보네이트의 적외선흡수 스펙트럼도.

Claims (5)

  1. 하기 일반식〔Ⅰ〕로 표시되는 폴리카보네이트;
    R1O-〔CH2CH(OR1)CH2O〕x-R1……(Ⅰ)
    식중, R1은 하기 식(A)로 표시된 기이고, x는 2∼30의 정수이고,
    -(ZO)mCOOR2……(A)
    식중, R2는 각각 독립적으로, 탄소수 30이하의 탄화수소기 또는 탄소수 2∼30이고 에테르 결합을 갖는 탄화수소기이며 Z는 에틸렌기와 프로필렌기중에서 선택된 알킬렌기이고, m은 1∼24의 정수이다.
  2. 하기 일반식〔Ⅰ〕로 표시되는 폴리카보네이트를 함유한 것을 특징으로 하는 윤활유:
    R1O-〔CH2CH(OR2)CH2O〕x-R2……(Ⅰ)
    식중, R1은 하기 식(A)로 표시된 기이고, x는 2∼30의 정수이고,
    -(ZO)mCOOR2……(A)
    식중, R2는 각각 독립적으로, 탄소수 30이하의 탄화수소기 또는 탄수소 2∼30이고 에테르 결합을 갖는 탄화수소기이며 Z는 에틸렌기와 프로필렌기중에서 선택된 알킬렌기이고, m은 1∼24의 정수이다.
  3. 하기 일반식〔Ⅰ〕로 표시되는 폴리카보네이트와 하기 일반식〔Ⅱ〕로 표시되는 폴리카보네이트를 함유하는 것을 특징으로 하는 윤활유;
    R1O-〔CH2CH(OR1)CH2O〕x-R1……(Ⅰ)
    식중, R1은 하기 식(A)로 표시된 기이고, x는 2∼30의 정수이고,
    -(ZO)mCOOR2……(A)
    식중, R2는 각각 독립적으로, 탄소수 30이하의 탄화수소기 또는 탄소수 2∼30이고 에테르 결합을 갖는 탄화수소기이며 Z는 에틸렌기와 프로필렌기중에서 선택된 알킬렌기이고, m은 1∼24의 정수이다.
    R3OCOO〔(R4O)RPCOO〕nR3……(Ⅱ)
    (식중, R3는 탄소수 1∼10의 탄화수소기 또는, 식 R5(ORS)y-로 표시되는 글리콜 에테르기이고, 여기서 R5는 탄소수 1∼10의 탄화수소기, RS는 에틸렌기 또는 프로필렌기이고, y는 1∼10의 정수, R4는 탄소수 2∼20의 알킬렌기이고, p는 1∼100의 정수, n은 1∼10의 정수이다.)
  4. 제2항 또는 제3항에 있어서, 냉동기용으로 사용되는 것이 특징인 윤활유.
  5. 제4항에 있어서, 수소화 후루오로카본(HFC)을 함유한 것이 특징인 윤활유.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019930000258A 1992-01-13 1993-01-11 폴리카보네이트 및 그의 용도 KR970000941B1 (ko)

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