High-molecular weight synthetic resins

Details High-molecular weight synthetic resins High-molecular weight synthetic resins

1991-03-21

1993-08-03

Kight, III, John

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

528271, C08G 6302, C08G 6300

Patent

active

052330150

ABSTRACT:
High-molecular weight synthetic resins of polyhexamethylene adipates are disclosed with molecular weights greater than about 10,000, preferably greater than about 30,000, and a viscosity at 100.degree. C. of at least about 300 poise, preferably exceeding 6000.
The polymerization is carried out with a ratio of diol/acid in the range 0.990 to about 1.03, preferably in the range of about 1.001 to about 1.01.

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patent: 4707535 (1987-11-01), Koleske
patent: 5066762 (1991-11-01), Ohbuchi et al.
Chemical Abstracts, vol. 63, Col. 3054 fgh by Zavaglia et al.
Chemical Abstracts, vol. 80, No. 15402 m, by Korshak et al.
Dissertation Abstracts, vol. 25, p. 3279, by Zavaglia.

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