1-Butene → HCID 23001909, compound

On the other hand, in an egg-plant type flask with an inner volume of 25 ml replaced with argon, 5 ml of purified toluene and 1.2 mg of dichloro{2,2′-thiobis[4-methyl-6-(tert-butyl)phenolato} titanium were mixed by stirring, and then charged into the autoclave. The molar ratio of [Al]/[Ti] of the catalyst solution prepared then was 8,000. After the catalyst solution was mixed by stirring at room temperature for 10 minutes, 25.5 ml of 4-methyl-1-pentene and 16.8 g of 1-butene were charged and the polymerization was carried out at 40° C. for 1 hour. Then, the polymerization was terminated by adding methanol. Further, the mixture was charged into about 10-fold acidic methanol, and the precipitated polymer was filtered to be dried at 80° C. for about 2 hours. As a result, 0.8 g of poly(1-butene/4-methyl-1-pentene) copolymer was obtained. Mw of the polymer obtained was 793×104, Mn was 342×104, Mw/Mn was 2.3, and no crystal fusion peak by DSC was detected. The glass transition temperature (Tg) was observed at 17° C. and the polymer was amorphous.

1. additionwere mixed
2. additioncharged into the autoclave
3. customThe molar ratio of [Al]/[Ti] of the catalyst solution prepared
4. additionAfter the catalyst solution was mixed
5. stirringby stirring at room temperature for 10 minutes
6. customThen, the polymerization was terminated
7. additionby adding methanol
8. additionFurther, the mixture was charged into about 10-fold acidic methanol
9. filtrationthe precipitated polymer was filtered
10. customto be dried at 80° C. for about 2 hours

ORD record

ord-d527d00635c14f6a903aa8e1e8b10d70

Source dataset

uspto-grants-2003_10

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06632900B2