Search International and National Patent Collections
Some content of this application is unavailable at the moment.
If this situation persists, please contact us atFeedback&Contact
1. (CA2045134) RUBBER-REINFORCING POLYESTER FIBER AND PROCESS FOR PREPARATION THEREOF

Office : Canada
Application Number: 2045134 Application Date: 15.11.1990
Publication Number: 2045134 Publication Date: 16.05.1991
Grant Number: Grant Date: 16.03.1999
Publication Kind : C
Prior PCT appl.: Application Number:JP1990001491 ; Publication Number: Click to see the data
IPC:
D01F 6/62
C08G 63/86
D TEXTILES; PAPER
01
NATURAL OR ARTIFICIAL THREADS OR FIBRES; SPINNING
F
CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES, OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
6
Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
58
from homopolycondensation products
62
from polyesters
C CHEMISTRY; METALLURGY
08
ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
63
Macromolecular compounds obtained by reactions forming a carboxylic ester link in the main chain of the macromolecule
78
Preparation processes
82
characterised by the catalyst used
85
Germanium, tin, lead, arsenic, antimony, bismuth, titanium, zirconium, hafnium, vanadium, niobium, tantalum, or compounds thereof
86
Germanium, antimony, or compounds thereof
Applicants:
Inventors: SASAMOTO, TAI
MIYOSHI, TAKEHIKO
SATO, TAKUJI
Priority Data: 1-296587 15.11.1989 JP
1-321343 13.12.1989 JP
Title: (EN) RUBBER-REINFORCING POLYESTER FIBER AND PROCESS FOR PREPARATION THEREOF
(FR) FIBRE POLYESTER SERVANT AU RENFORCEMENT DU CAOUTCHOUC ET PROCEDE DE PREPARATION CONNEXE
Abstract:
(EN) -24- A rubber-reinforcing polyester fiber composed of a polyester prepared by using 30 to 150 ppm as antimony of an antimony compound and 5 to 60 ppm as germanium of a germanium compound as the polymerization catalyst. The fiber is characterized in that the terminal carboxyl group content is not larger than 25 eq/ton, diethylene glycol content (DEG) is not larger than 1.3% by weight, the intrinsic viscosity (IV) is at least 0.85, the sum (S) of the intermediate elongation and the dry heat shrinkage is lower than 8%, the product between strength and elongation (T~E) is at least (2S + 5), and the terminal modulus (TM) is not higher than 40 g/d. The polyester fiber is used as a rubber reinforcement.


Also published as:
EP0454868US5242645KR1019920701540AU1990066426WO/1991/007529