Global Patent Index - EP 0351707 A3

EP 0351707 A3 19901010 - HIGH STRENGTH FIBERS OF STEREOREGULAR POLYSTYRENE

Title (en)

HIGH STRENGTH FIBERS OF STEREOREGULAR POLYSTYRENE

Publication

EP 0351707 A3 19901010 (EN)

Application

EP 89112750 A 19890712

Priority

US 22347488 A 19880722

Abstract (en)

[origin: EP0351707A2] The invention is a crystalline fiber comprising syndiotactic polystyrene, or a mixture. Preferably the fiber is a high strength fiber isotactic polystyrene and syndiotactic polystyrene wherein the fiber is monoaxially oriented, has a tensile strength of 10,000 psi or greater, and a modulus of 1,000,000 psi or greater. In another aspect the invention is a process for the preparation of fibers of syndiotactic polystyrene, or a mixture of isotactic polystyrene and syndiotactic polystyrene.

IPC 1-7

D01F 6/22

IPC 8 full level

D01D 5/06 (2006.01); D01F 6/22 (2006.01); D01F 6/56 (2006.01)

CPC (source: EP KR)

D01F 6/22 (2013.01 - EP KR)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE ES FR GB IT LI NL SE

DOCDB simple family (publication)

EP 0351707 A2 19900124; EP 0351707 A3 19901010; AU 3880189 A 19900125; AU 620895 B2 19920227; CA 1335030 C 19950404; FI 893527 A0 19890721; FI 893527 A 19900123; JP H0253909 A 19900222; KR 910003172 A 19910227

DOCDB simple family (application)

EP 89112750 A 19890712; AU 3880189 A 19890720; CA 605352 A 19890711; FI 893527 A 19890721; JP 18621689 A 19890720; KR 890010455 A 19890722