Method for polymerizing macrocyclic poly(alkylene dicarboxylate)

Details Method for polymerizing macrocyclic poly(alkylene dicarboxylate) Method for polymerizing macrocyclic poly(alkylene dicarboxylate)

1995-01-12

1996-06-18

Seidleck, James J.

Chemistry of hydrocarbon compounds

Compound or reaction product mixture

502100, 528494, 528272, C07C 1300

Patent

active

055279767

ABSTRACT:
Macrocyclic polyester oligomers are converted to linear polyesters by contact at a temperature of about 160.degree.-300.degree. C. with a cyclic titanium catalyst such as di-(1-butyl)-2,2-dimethylpropane-1,3-dioxytitanate, bis(2,2-dimethyl-1,3-propylene)titanate or 1-(1-butoxy)-4-methyl-2,6,7-trioxa-1-titanabicyclo[2.2.2]octane. Such catalysts have high activity and produce linear or branched polyesters of very high molecular weight.

REFERENCES:
patent: 5039783 (1991-08-01), Brunelle et al.
patent: 5191013 (1993-03-01), Cook et al.
patent: 5214158 (1993-05-01), Brunelle et al.
patent: 5231161 (1993-07-01), Brunelle et al.
patent: 5300590 (1994-04-01), Cook et al.
patent: 5321117 (1994-06-01), Brunelle
patent: 5386037 (1995-01-01), Takekoshi et al.
patent: 5387666 (1995-02-01), Takekoshi et al.
patent: 5389719 (1995-02-01), Takekoshi et al
patent: 5466744 (1995-11-01), Evans et al.

Affiliated with

Also associated with

Rating

Method for polymerizing macrocyclic poly(alkylene dicarboxylate) does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for polymerizing macrocyclic poly(alkylene dicarboxylate), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for polymerizing macrocyclic poly(alkylene dicarboxylate) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-224296