Polyamides of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9

Details Polyamides of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9 Polyamides of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9

1973-08-31

1981-10-06

Anderson, Harold D.

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

Synthetic resins

From carboxylic acid or derivative thereof

8516, 260 334R, 260 37N, 264176F, 528338, 528339, 528345, 528349, C08G 6926

Patent

active

042936888

ABSTRACT:
A new polyamide composed at least primarily of 1,4-cyclohexane dicarboxylic acid and 5-methyl-1,9-nonanediamine, the polyamide having less than 5 olefinic double bonds per 100 diamine units, an inherent viscosity of at least about 0.6, a polymer melt temperature of at least about 200.degree. C., a T.sub.g in the range of about 90.degree. to about 130.degree. C., and a T.sub.m in the range of about 260.degree. C. to about 310.degree. C. can be formed into fibers without the use of plasticizers. Such fibers can be produced with a boiling water shrinkage of less than 30 percent.

REFERENCES:
patent: 2752328 (1956-06-01), Magat
patent: 2965616 (1960-12-01), Caldwell et al.
patent: 3575935 (1971-04-01), Elam

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