KR960000957A - Polybutylene terephthalate resin production method - Google Patents
Polybutylene terephthalate resin production method Download PDFInfo
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- KR960000957A KR960000957A KR1019940015558A KR19940015558A KR960000957A KR 960000957 A KR960000957 A KR 960000957A KR 1019940015558 A KR1019940015558 A KR 1019940015558A KR 19940015558 A KR19940015558 A KR 19940015558A KR 960000957 A KR960000957 A KR 960000957A
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Abstract
본 발명은 테레프탈산 및 1,4-부탄디올의 에스테르화 반응전에 테레프탈산에 대하여 0.001 내지 0.2중량%의 하기 식(I)및 0.001 내지 0.08중량%의 하기 식(Ⅱ)의 촉매를 동시에 첨가한 후, 1 내지 2기압으로 가압한 후 100 내지 300토르로 감압하여 에스테르화 반응을 완료시키고, 중합말기에 상기식(I)의 화합물 0.001 내지 0.2중량% 및 하기식(Ⅲ)의 화합물을 0.05 내지 3중량% 첨가하는 것으로 구성된 폴리부틸렌테레프탈레이트의 제조방법에 관한 것이다.The present invention simultaneously adds 0.001 to 0.2% by weight of the catalyst of the following formula (I) and 0.001 to 0.08% by weight of the catalyst of the following formula (II) to the terephthalic acid before the esterification reaction of terephthalic acid and 1,4-butanediol, and then 1 Pressurized to 2 atm and then reduced to 100 to 300 torr to complete the esterification reaction, at the end of the polymerization of 0.001 to 0.2% by weight of the compound of formula (I) and 0.05 to 3% by weight of the compound of formula (III) It relates to a method for producing polybutylene terephthalate consisting of addition.
Ti(OR)4(I)Ti (OR) 4 (I)
(상기식에서 R은 탄소수 2개 내지 6개의 알킬기이다.)(Wherein R is an alkyl group having 2 to 6 carbon atoms)
R-Sn(OR')3(Ⅱ)R-Sn (OR ') 3 (II)
(상기식에서 R은 탄소수 1개 내지 4개의 알킬기이며, R'은 H, CH3, 에틸 헥산)(Wherein R is an alkyl group having 1 to 4 carbon atoms, R 'is H, CH 3 , ethyl hexane)
(상기식에서 R1은 H2, CH3, 이소프로필, 또는 터셔리부틸이고, R2는 CH2, 또는 CH2CH2이고, M은 Na, K 또는 Li이다.)(Wherein R 1 is H 2 , CH 3 , isopropyl, or tertiarybutyl, R 2 is CH 2 , or CH 2 CH 2 , and M is Na, K or Li.)
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940015558A KR960000957A (en) | 1994-06-30 | 1994-06-30 | Polybutylene terephthalate resin production method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940015558A KR960000957A (en) | 1994-06-30 | 1994-06-30 | Polybutylene terephthalate resin production method |
Publications (1)
Publication Number | Publication Date |
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KR960000957A true KR960000957A (en) | 1996-01-25 |
Family
ID=66792513
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019940015558A KR960000957A (en) | 1994-06-30 | 1994-06-30 | Polybutylene terephthalate resin production method |
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KR (1) | KR960000957A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100603346B1 (en) * | 2000-02-16 | 2006-07-20 | 주식회사 새 한 | Method for the preparation of polybutylene terephthalate resin |
-
1994
- 1994-06-30 KR KR1019940015558A patent/KR960000957A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100603346B1 (en) * | 2000-02-16 | 2006-07-20 | 주식회사 새 한 | Method for the preparation of polybutylene terephthalate resin |
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