Isomorphic copolymers of .epsilon.-caprolactone and 1,5-dioxepan

Details Isomorphic copolymers of .epsilon.-caprolactone and 1,5-dioxepan Isomorphic copolymers of .epsilon.-caprolactone and 1,5-dioxepan

1978-12-26

1980-02-26

Nielsen, Earl A.

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

Synthetic resins

From carboxylic acid or derivative thereof

128 90, C08G 6308

Patent

active

041907205

ABSTRACT:
Isomorphic copolymers of .epsilon.-caprolactone with from about 3 to 15 percent 1,5-dioxepan-2-one have melting points in the range of 54.degree. to 66.degree. C. and may be extruded into fibers having elongations in the range of 120 to 235 percent. The copolymers are useful for the preparation of filaments, films and molded articles for general and surgical applications including surgical sutures and casts.

REFERENCES:
patent: 3190858 (1965-06-01), Cox et al.
patent: 3645941 (1972-02-01), Snapp et al.
patent: 3852913 (1974-12-01), Clendinning et al.
patent: 4045418 (1977-08-01), Sinclair
Union Carbide Corporation, New Product Information Bulletin, "Polycaprolactone Polymer PCL-700" F44221, Nov. 1972.

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