Claims
- 1. A plasticizer bonded fibrous article of a fiber of a polyester of terephthalic acid or an ester forming derivative thereof and a glycol of from about 60 mole percent to 100 mole percent 1,2-propylene glycol and from 0 to about 40 mole percent ethylene glycol; said polyester having an inherent viscosity of at least about 0.35 in a 60/40 parts by weight solution of phenol/tetrachloroethane at 25.degree. C. at a concentration of 0.5 gram of polyester in 100 ml. of said solvent, and a Tg of at least 80.degree. C.
- 2. The plasticizer bonded fibrous article of claim 1 wherein the ethylene glycol content of the polyester is from 10 to about 30 mole percent, and the inherent viscosity is at least about 0.5.
- 3. The plasticizer bonded fibrous article of claim 1 wherein the plasticizer is selected from the group consisting of triethylene glycol diacetate, glycerol triacetate, dimethyl phthalate, 1,3-butanediol diacetate, and .gamma.-butyrolactone or mixtures thereof.
- 4. The plasticizer bonded fibrous article of claim 2 wherein the plasticizer is selected from the group consisting of triethylene glycol diacetate, glycerol triacetate, dimethyl phthalate, 1,3-butanediol diacetate, and .gamma.-butyrolactone or mixtures thereof.
- 5. The plasticizer bondable fibrous article of claim 3 in the form of a nonwoven web.
- 6. The plasticizer bondable fibrous article of claim 4 in the form of a nonwoven web.
Parent Case Info
This is a division of application Ser. No. 748,037 filed Dec. 6, 1976, now U.S. Pat. No. 4,145,518.
US Referenced Citations (8)
Divisions (1)
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Number |
Date |
Country |
Parent |
748037 |
Dec 1976 |
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